Movatterモバイル変換

[0]ホーム
URL:

CN113644997B - An electromagnetic environment detection method, device and system - Google Patents

An electromagnetic environment detection method, device and systemDownload PDF

Info

Publication number
CN113644997B
CN113644997BCN202111195824.5ACN202111195824ACN113644997BCN 113644997 BCN113644997 BCN 113644997BCN 202111195824 ACN202111195824 ACN 202111195824ACN 113644997 BCN113644997 BCN 113644997B
Authority
CN
China
Prior art keywords
background noise
maximum allowable
matrix
test
interference signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111195824.5A
Other languages
Chinese (zh)
Other versions
CN113644997A (en
Inventor
叶家全
高静
邹杰
崔铠韬
梁飞
吴杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Second Research Institute of CAAC
Original Assignee
Second Research Institute of CAAC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Second Research Institute of CAACfiledCriticalSecond Research Institute of CAAC
Priority to CN202111195824.5ApriorityCriticalpatent/CN113644997B/en
Publication of CN113644997ApublicationCriticalpatent/CN113644997A/en
Application grantedgrantedCritical
Publication of CN113644997BpublicationCriticalpatent/CN113644997B/en
Activelegal-statusCriticalCurrent
Anticipated expirationlegal-statusCritical

Links

Images

Classifications

Landscapes

Abstract

Translated fromChinese

本发明公开了一种电磁环境检测方法、装置和系统，该方法包括以下步骤：获取电磁环境测试所需的测试参数和测试频谱数据；对测试频谱数据融合处理输出综合频谱数据；根据综合频谱数据和测试参数计算背景噪声实际值和干扰信号。本发明能够确保拟建民航机场地面无线电台（站）址的电磁环境测试结果的正确性和准确性，确保建成后的航空无线电台（站）能安全运行，从而为民航飞机安全飞行提供保障。

Figure 202111195824

The invention discloses a method, device and system for electromagnetic environment detection. The method comprises the following steps: acquiring test parameters and test spectrum data required for electromagnetic environment test; fusing and processing the test spectrum data and outputting comprehensive spectrum data; according to the comprehensive spectrum data and test parameters to calculate the actual value of background noise and interference signals. The invention can ensure the correctness and accuracy of the electromagnetic environment test results of the ground radio station (station) site of the proposed civil aviation airport, and ensure the safe operation of the built aviation radio station (station), thereby providing guarantee for the safe flight of civil aviation aircraft.

Figure 202111195824

Description

Translated fromChinese
一种电磁环境检测方法、装置和系统An electromagnetic environment detection method, device and system

技术领域technical field

本发明属于电磁环境检测技术领域，尤其涉及一种电磁环境检测方法、装置和系统。The invention belongs to the technical field of electromagnetic environment detection, and in particular relates to an electromagnetic environment detection method, device and system.

背景技术Background technique

民航机场电磁环境测试是指对机场地面航空无线电台（站）的电磁环境进行测试，了解拟建的地面航空电台（站）的电磁环境状况。目的是测试周围是否存在干扰信号，若存在干扰信号，则要测出干扰信号的频率、强度、带宽等参量，根据测试结果分析干扰源的性质，正确评估拟建台站与干扰源的电磁兼容关系，为机场地面航空无线电台（站）的新建、迁建、扩建后的安全运行和频率的指配提供依据。因此，电磁环境测试的质量和正确评估所需数据的获取方法直接关系到建站成本与后期通信的质量。The electromagnetic environment test of civil aviation airport refers to the test of the electromagnetic environment of the ground aviation radio station (station) of the airport to understand the electromagnetic environment of the proposed ground aviation radio station (station). The purpose is to test whether there is an interference signal around. If there is an interference signal, the frequency, strength, bandwidth and other parameters of the interference signal should be measured, the nature of the interference source should be analyzed according to the test results, and the electromagnetic compatibility between the proposed station and the interference source should be correctly evaluated. It provides a basis for the safe operation and frequency assignment of the new construction, relocation and expansion of ground aeronautical radio stations (stations) at the airport. Therefore, the quality of the electromagnetic environment test and the acquisition method of the data required for the correct evaluation are directly related to the cost of building the site and the quality of the post-communication.

电磁环境测试系统主要由天线、接收设备（接收机或频谱仪等）和根据需要选用的辅助设备（衰减器、放大器和滤波器），测试系统通过天线采集环境中的干扰信号，经过低噪声放大后，由接收设备读取干扰信号的强度，读数经过后期的计算后可得出环境中的干扰信号强度（功率或场强）。目前国内很多检测机构根据国家和行业相关要求进行测试和评估，通常采用直接读取接收设备上的测试结果进行计算，这种靠人工读取和判断的结果无法保证测试结果的正确性和准确性，从而影响民航机场电磁环境的安全评估。因此，有必要提供一种民航机场电磁环境安全检测装置及方法解决上述问题，确保拟建民航机场地面无线电台（站）址的电磁环境测试结果的正确性和准确性，确保建成后的航空无线电台（站）能安全运行，从而为民航飞机安全飞行提供保障。The electromagnetic environment test system is mainly composed of antenna, receiving equipment (receiver or spectrum analyzer, etc.) and auxiliary equipment (attenuator, amplifier and filter) selected according to needs. After that, the receiving device reads the strength of the interfering signal, and the reading can obtain the strength of the interfering signal (power or field strength) in the environment after a later calculation. At present, many domestic testing institutions conduct tests and evaluations according to relevant national and industry requirements, usually by directly reading the test results on the receiving equipment for calculation. This kind of manual reading and judgment results cannot guarantee the correctness and accuracy of the test results. , thereby affecting the safety assessment of the electromagnetic environment of civil aviation airports. Therefore, it is necessary to provide a civil aviation airport electromagnetic environment safety detection device and method to solve the above problems, to ensure the correctness and accuracy of the electromagnetic environment test results of the proposed civil aviation airport ground radio station (station) site, and to ensure the aviation radio after completion. The station (station) can operate safely, thus providing guarantee for the safe flight of civil aviation aircraft.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于，为克服现有技术缺陷，提供了一种电磁环境检测方法、装置和系统, 能够确保拟建民航机场地面无线电台（站）址的电磁环境测试结果的正确性和准确性，确保建成后的航空无线电台（站）能安全运行，从而为民航飞机安全飞行提供保障。The purpose of the present invention is to provide an electromagnetic environment detection method, device and system in order to overcome the defects of the prior art, which can ensure the correctness and accuracy of the electromagnetic environment test results of the proposed civil aviation airport ground radio station (station) site , to ensure the safe operation of the aviation radio station (station) after completion, thus providing guarantee for the safe flight of civil aviation aircraft.

本发明目的通过下述技术方案来实现：The object of the present invention is achieved through the following technical solutions:

一种电磁环境检测方法，包括以下步骤：An electromagnetic environment detection method, comprising the following steps:

获取电磁环境测试所需的测试参数和测试频谱数据；Obtain test parameters and test spectrum data required for electromagnetic environment testing;

对测试频谱数据融合处理输出综合频谱数据；Integrate and process the test spectrum data to output comprehensive spectrum data;

根据综合频谱数据和测试参数计算背景噪声实际值和干扰信号。Calculate the actual value of background noise and interference signals based on the comprehensive spectrum data and test parameters.

进一步的，所述融合处理采用的方法如下：Further, the method adopted in the fusion processing is as follows:

Figure 959668DEST_PATH_IMAGE001
，
Figure 959668DEST_PATH_IMAGE001
,

其中，

Figure 498097DEST_PATH_IMAGE002
表示频谱数据S的第u个2行n列的频谱数据矩阵，
Figure DEST_PATH_IMAGE003
表示
Figure 961439DEST_PATH_IMAGE004
矩阵中第1行元素组成的矩阵，
Figure DEST_PATH_IMAGE005
表示
Figure 243516DEST_PATH_IMAGE006
矩阵中第2行元素组成的矩阵，且
Figure DEST_PATH_IMAGE007
，
Figure 475914DEST_PATH_IMAGE008
，其中u=1,2，…m，m和n为正整数；in,
Figure 498097DEST_PATH_IMAGE002
represents the u-th 2-row and n-column spectral data matrix of the spectral data S,
Figure DEST_PATH_IMAGE003
express
Figure 961439DEST_PATH_IMAGE004
A matrix consisting of elements in row 1 of the matrix,
Figure DEST_PATH_IMAGE005
express
Figure 243516DEST_PATH_IMAGE006
a matrix of elements in row 2 of the matrix, and
Figure DEST_PATH_IMAGE007
,
Figure 475914DEST_PATH_IMAGE008
, where u=1,2,...m, m and n are positive integers;

融合后得到综合频谱数据：After fusion, the comprehensive spectrum data is obtained:

Figure DEST_PATH_IMAGE009
Figure DEST_PATH_IMAGE009

其中s为m和n的乘积,

Figure 247561DEST_PATH_IMAGE010
和
Figure DEST_PATH_IMAGE011
为1到s的正整数，
Figure 651996DEST_PATH_IMAGE012
表示H的第
Figure DEST_PATH_IMAGE013
行第
Figure 534502DEST_PATH_IMAGE014
列的元素，且
Figure DEST_PATH_IMAGE015
，
Figure 824669DEST_PATH_IMAGE016
函数表示将矩阵A中的第一行元素按照从小到大的顺序进行排序，第二行元素按照下标与第一行元素相同进行排序。where s is the product of m and n,
Figure 247561DEST_PATH_IMAGE010
and
Figure DEST_PATH_IMAGE011
is a positive integer from 1 to s,
Figure 651996DEST_PATH_IMAGE012
represents the first
Figure DEST_PATH_IMAGE013
row
Figure 534502DEST_PATH_IMAGE014
the elements of the column, and
Figure DEST_PATH_IMAGE015
,
Figure 824669DEST_PATH_IMAGE016
The function indicates that the elements in the first row of matrix A are sorted in ascending order, and the elements in the second row are sorted according to the same subscript as the elements in the first row.

进一步的，所述测试参数包括基准带宽、天线增益、天线因子、射频通道增益和分辨率带宽。Further, the test parameters include reference bandwidth, antenna gain, antenna factor, radio frequency channel gain and resolution bandwidth.

进一步的，所述干扰信号的计算方法如下：Further, the calculation method of the interference signal is as follows:

矩阵初始化，背景噪声

Figure DEST_PATH_IMAGE017
，干扰信号
Figure 767217DEST_PATH_IMAGE018
，第一转化矩阵
Figure DEST_PATH_IMAGE019
，第二转化矩阵
Figure 205151DEST_PATH_IMAGE020
，背景噪声均值矩阵
Figure DEST_PATH_IMAGE021
，传递矩阵
Figure 829031DEST_PATH_IMAGE022
，且
Figure DEST_PATH_IMAGE023
，
Figure 36021DEST_PATH_IMAGE024
，
Figure DEST_PATH_IMAGE025
；其中，
Figure 87154DEST_PATH_IMAGE026
为
Figure DEST_PATH_IMAGE027
中第i行第j列的元素，
Figure 12384DEST_PATH_IMAGE028
为
Figure DEST_PATH_IMAGE029
中第i行第j列的元素，
Figure 672911DEST_PATH_IMAGE030
表示Q中第1行第i列的元素，
Figure DEST_PATH_IMAGE031
表示背景噪声均值；Matrix initialization, background noise
Figure DEST_PATH_IMAGE017
, the jamming signal
Figure 767217DEST_PATH_IMAGE018
, the first transformation matrix
Figure DEST_PATH_IMAGE019
, the second transformation matrix
Figure 205151DEST_PATH_IMAGE020
, the background noise mean matrix
Figure DEST_PATH_IMAGE021
, the transfer matrix
Figure 829031DEST_PATH_IMAGE022
,and
Figure DEST_PATH_IMAGE023
,
Figure 36021DEST_PATH_IMAGE024
,
Figure DEST_PATH_IMAGE025
;in,
Figure 87154DEST_PATH_IMAGE026
for
Figure DEST_PATH_IMAGE027
The element in row i and column j of ,
Figure 12384DEST_PATH_IMAGE028
for
Figure DEST_PATH_IMAGE029
The element in row i and column j of ,
Figure 672911DEST_PATH_IMAGE030
represents the element in row 1 and column i in Q,
Figure DEST_PATH_IMAGE031
represents the mean background noise;

计算背景噪声值均值

Figure 999987DEST_PATH_IMAGE032
，
Figure DEST_PATH_IMAGE033
，其中，T表示矩阵的转置；Calculate the mean background noise value
Figure 999987DEST_PATH_IMAGE032
,
Figure DEST_PATH_IMAGE033
, where T represents the transpose of the matrix;

计算矩阵Q，

Figure 18758DEST_PATH_IMAGE034
，计算干扰信号
Figure DEST_PATH_IMAGE035
和背景噪声
Figure 368968DEST_PATH_IMAGE036
，查找矩阵Q中所有大于6分贝的元素，若存在索引正整数r使得
Figure DEST_PATH_IMAGE037
，则让
Figure 396967DEST_PATH_IMAGE038
，然后让
Figure DEST_PATH_IMAGE039
，最后得出干扰信号
Figure 578550DEST_PATH_IMAGE035
，背景噪声
Figure 971485DEST_PATH_IMAGE036
；Calculate the matrix Q,
Figure 18758DEST_PATH_IMAGE034
, calculate the interference signal
Figure DEST_PATH_IMAGE035
and background noise
Figure 368968DEST_PATH_IMAGE036
, find all elements greater than 6 dB in matrix Q, if there is an index positive integer r such that
Figure DEST_PATH_IMAGE037
, then let
Figure 396967DEST_PATH_IMAGE038
, then let
Figure DEST_PATH_IMAGE039
, and finally get the interference signal
Figure 578550DEST_PATH_IMAGE035
, background noise
Figure 971485DEST_PATH_IMAGE036
;

背景噪声测量值

Figure 605729DEST_PATH_IMAGE040
的计算方法如下：Background noise measurements
Figure 605729DEST_PATH_IMAGE040
is calculated as follows:

Figure DEST_PATH_IMAGE041
，
Figure DEST_PATH_IMAGE041
,

其中，函数max（A）表示求矩阵A所有元素中第一个最大值；Among them, the function max(A) means to find the first maximum value among all elements of matrix A;

所述背景噪声实际值

Figure 171839DEST_PATH_IMAGE042
的计算方法如下：The actual value of the background noise
Figure 171839DEST_PATH_IMAGE042
is calculated as follows:

当背景噪声测量值

Figure 473508DEST_PATH_IMAGE040
的单位为
Figure DEST_PATH_IMAGE043
，背景噪声实际值
Figure 37344DEST_PATH_IMAGE044
的单位为
Figure DEST_PATH_IMAGE045
时，
Figure 158884DEST_PATH_IMAGE046
；When background noise is measured
Figure 473508DEST_PATH_IMAGE040
The unit is
Figure DEST_PATH_IMAGE043
, the actual value of background noise
Figure 37344DEST_PATH_IMAGE044
The unit is
Figure DEST_PATH_IMAGE045
hour,
Figure 158884DEST_PATH_IMAGE046
;

当背景噪声测量值

Figure 528685DEST_PATH_IMAGE040
的单位为
Figure DEST_PATH_IMAGE047
，背景噪声实际值
Figure 121078DEST_PATH_IMAGE042
的单位为
Figure 918133DEST_PATH_IMAGE047
时，
Figure 526969DEST_PATH_IMAGE048
；When background noise is measured
Figure 528685DEST_PATH_IMAGE040
The unit is
Figure DEST_PATH_IMAGE047
, the actual value of background noise
Figure 121078DEST_PATH_IMAGE042
The unit is
Figure 918133DEST_PATH_IMAGE047
hour,
Figure 526969DEST_PATH_IMAGE048
;

当背景噪声测量值

Figure DEST_PATH_IMAGE049
的单位为
Figure 434882DEST_PATH_IMAGE050
，背景噪声实际值
Figure 383247DEST_PATH_IMAGE042
的单位为
Figure DEST_PATH_IMAGE051
时，
Figure 351203DEST_PATH_IMAGE052
；When background noise is measured
Figure DEST_PATH_IMAGE049
The unit is
Figure 434882DEST_PATH_IMAGE050
, the actual value of background noise
Figure 383247DEST_PATH_IMAGE042
The unit is
Figure DEST_PATH_IMAGE051
hour,
Figure 351203DEST_PATH_IMAGE052
;

其中，天线因子AF单位为

Figure DEST_PATH_IMAGE053
，射频通道增益
Figure 447335DEST_PATH_IMAGE054
单位为
Figure DEST_PATH_IMAGE055
，天线增益
Figure 96622DEST_PATH_IMAGE056
单位为
Figure DEST_PATH_IMAGE057
，基准带宽
Figure 961810DEST_PATH_IMAGE058
和分辨率带宽
Figure DEST_PATH_IMAGE059
的单位为
Figure 38350DEST_PATH_IMAGE060
。Among them, the unit of antenna factor AF is
Figure DEST_PATH_IMAGE053
, RF channel gain
Figure 447335DEST_PATH_IMAGE054
Unit is
Figure DEST_PATH_IMAGE055
, the antenna gain
Figure 96622DEST_PATH_IMAGE056
Unit is
Figure DEST_PATH_IMAGE057
, the base bandwidth
Figure 961810DEST_PATH_IMAGE058
and resolution bandwidth
Figure DEST_PATH_IMAGE059
The unit is
Figure 38350DEST_PATH_IMAGE060
.

进一步的，所述测试参数还包括最大允许干扰场强和最大允许干扰功率，将干扰信号和背景噪声实际值与最大允许干扰功率或最大允许干扰场强进行比较，获得测试频段的干扰信号和背景噪声的检测结果。Further, the test parameters also include the maximum allowable interference field strength and maximum allowable interference power, and compare the actual value of the interference signal and background noise with the maximum allowable interference power or maximum allowable interference field strength to obtain the interference signal and background of the test frequency band. Noise detection results.

进一步的，所述将干扰信号和背景噪声实际值与最大允许干扰功率或最大允许干扰场强进行比较，获得测试频段的干扰信号和背景噪声的检测结果步骤具体包括：Further, the step of comparing the actual value of the interference signal and the background noise with the maximum allowable interference power or the maximum allowable interference field strength to obtain the detection result of the interference signal and the background noise in the test frequency band specifically includes:

比较背景噪声实际值与最大允许干扰功率或最大允许干扰场强的大小；Compare the actual value of background noise with the maximum allowable interference power or maximum allowable interference field strength;

若背景噪声实际值小于最大允许干扰功率或最大允许干扰场强，且干扰信号是零矩阵，检测结果为测试频段没有出现超过最大允许干扰功率或最大允许干扰场强的干扰信号及背景噪声；If the actual value of background noise is less than the maximum allowable interference power or maximum allowable interference field strength, and the interference signal is a zero matrix, the detection result is that there is no interference signal and background noise exceeding the maximum allowable interference power or maximum allowable interference field strength in the test frequency band;

若背景噪声实际值小于最大允许干扰功率或最大允许干扰场强，且干扰信号是非零矩阵，则列出干扰信号矩阵第一行中非零元素构成的频率点或频段，以及对应的幅度值，检测结果为测试频段内存在干扰信号；If the actual value of the background noise is less than the maximum allowable interference power or the maximum allowable interference field strength, and the interference signal is a non-zero matrix, then list the frequency points or frequency bands formed by the non-zero elements in the first row of the interference signal matrix, and the corresponding amplitude value, The detection result is that there is interference signal in the test frequency band;

若背景噪声实际值大于最大允许干扰功率或最大允许干扰场强，且干扰信号是零矩阵，检测结果为测试频段内背景噪声超出最大允许干扰功率或最大允许干扰场强；If the actual value of the background noise is greater than the maximum allowable interference power or maximum allowable interference field strength, and the interference signal is a zero matrix, the detection result is that the background noise in the test frequency band exceeds the maximum allowable interference power or maximum allowable interference field strength;

若背景噪声实际值大于最大允许干扰功率或最大允许干扰场强，且干扰信号是非零矩阵，则列出干扰信号矩阵第一行中非零元素构成的频率点或频段，以及对应的幅度值，检测结果为测试频段内存在干扰信号且背景噪声超出最大允许干扰功率或最大允许干扰场强。If the actual value of the background noise is greater than the maximum allowable interference power or the maximum allowable interference field strength, and the interference signal is a non-zero matrix, then list the frequency points or frequency bands formed by the non-zero elements in the first row of the interference signal matrix, and the corresponding amplitude value, The detection result is that there is an interference signal in the test frequency band and the background noise exceeds the maximum allowable interference power or the maximum allowable interference field strength.

另一方面，本发明还提供了一种电磁环境检测装置，包括输入单元和计算单元，所述输入单元包括频谱数据采集模块和测试参数输入模块，所述计算单元包括数据融合模块和数据处理模块；其中，On the other hand, the present invention also provides an electromagnetic environment detection device, including an input unit and a calculation unit, the input unit includes a spectrum data acquisition module and a test parameter input module, and the calculation unit includes a data fusion module and a data processing module ;in,

所述数据融合模块用于对测试频谱数据融合处理输出综合频谱数据，所述数据处理模块用于根据综合频谱数据和测试参数计算背景噪声实际值和干扰信号；The data fusion module is used to fuse and process the test spectrum data and output the comprehensive spectrum data, and the data processing module is used to calculate the actual value of the background noise and the interference signal according to the comprehensive spectrum data and the test parameters;

所述测试参数输入模块用于输入电磁环境检测所需的测试参数。The test parameter input module is used for inputting test parameters required for electromagnetic environment detection.

进一步的，所述频谱数据采集模块包括接收天线，接收天线通过射频电缆和预处理器连接，预处理器通过射频电缆和频谱仪连接，频谱仪与计算单元通讯连接，所述预处理器包括衰减器、低噪声放大器和滤波器。Further, the spectrum data acquisition module includes a receiving antenna, the receiving antenna is connected to the pre-processor through a radio frequency cable, the pre-processor is connected to a spectrum analyzer through a radio frequency cable, the spectrum analyzer is communicatively connected to the computing unit, and the pre-processor includes attenuation. amplifiers, low noise amplifiers and filters.

进一步的，还包括测试频段检测模块，用于将干扰信号和背景噪声实际值与最大允许干扰功率或最大允许干扰场强进行比较，获得测试频段的干扰信号和背景噪声的检测结果。Further, a test frequency band detection module is also included, which is used to compare the actual value of the interference signal and background noise with the maximum allowable interference power or the maximum allowable interference field strength, and obtain the detection results of the interference signal and background noise in the test frequency band.

另一方面，本发明还提供了一种电磁环境检测系统，包括前述的电磁环境检测装置，其特征在于，电磁环境检测装置还连接有输出单元，所述输出单元包括显示模块、报告生成模块和存储模块；其中，On the other hand, the present invention also provides an electromagnetic environment detection system, including the aforementioned electromagnetic environment detection device, characterized in that, the electromagnetic environment detection device is further connected with an output unit, and the output unit includes a display module, a report generation module and storage module; wherein,

显示模块，用于显示测试频段的检测结果；The display module is used to display the detection result of the test frequency band;

报告生成模块，用于将检测结果生成统一的报告文档；The report generation module is used to generate a unified report document for the detection results;

存储模块，用于存储测试频段的检测结果，能够被拥有访问权限的终端调用进行结果追溯。The storage module is used to store the detection results of the test frequency band, which can be called by the terminal with access rights to trace the results.

本发明的有益效果在于：The beneficial effects of the present invention are:

（1）本发明通过采集拟建航空无线电台(站)址周围的电磁环境信号的频谱数据，并对频谱数据进行融合后计算获得拟建航空无线电台(站)址环境的干扰信号与背景噪声实际值，为航空无线电台(站)的新建、迁建、扩建等提供了可靠参考依据。(1) The present invention obtains the interference signal and background noise of the proposed aeronautical radio station (station) site environment by collecting the spectrum data of the electromagnetic environment signals around the proposed aeronautical radio station (station) site, and after fusing the spectrum data. The actual value provides a reliable reference for the new construction, relocation and expansion of aeronautical radio stations (stations).

（2）本发明通过对干扰信号、背景噪声实际值与最大允许干扰功率或最大允许干扰场强的比较，检测测试频段的干扰信号和背景噪声是否超过标准，进一步为机场地面航空无线电台（站）的新建、迁建、扩建后的安全运行和频率的指配提供可靠的依据。(2) The present invention detects whether the interference signal and background noise of the test frequency band exceed the standard by comparing the actual value of the interference signal and background noise with the maximum allowable interference power or the maximum allowable interference field strength, and further provides the airport ground aeronautical radio station (station). ) to provide a reliable basis for the safe operation and frequency assignment of new construction, relocation and expansion.

附图说明Description of drawings

图1是本发明实施例1提供的一种电磁环境检测方法流程框图；FIG. 1 is a flowchart of a method for detecting an electromagnetic environment provided in Embodiment 1 of the present invention;

图2是本发明实施例2提供的另一种电磁环境检测方法流程框图；2 is a flowchart of another electromagnetic environment detection method provided in Embodiment 2 of the present invention;

图3是本发明实施例3提供的一种电磁环境检测装置频谱数据输入部分的结构示意图；3 is a schematic structural diagram of a spectral data input part of an electromagnetic environment detection device provided in Embodiment 3 of the present invention;

图4是本发明实施例4提供的一种电磁环境检测系统结构示意图。FIG. 4 is a schematic structural diagram of an electromagnetic environment detection system according to Embodiment 4 of the present invention.

具体实施方式Detailed ways

以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精神下进行各种修饰或改变。需说明的是，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合。The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.

基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

实施例1Example 1

如图1所示，是本实施例提供的一种电磁环境检测方法流程框图。该方法具体包括以下步骤：As shown in FIG. 1 , it is a flowchart of an electromagnetic environment detection method provided in this embodiment. The method specifically includes the following steps:

步骤一：获取电磁环境测试所需的测试参数和测试频谱数据。其中，电磁环境测试所需的测试参数包括基准带宽、天线增益、天线因子、射频通道增益和分辨率带宽。测试频谱数据是拟建航空地面无线电台站址周围的电磁环境信号的频谱数据。Step 1: Obtain the test parameters and test spectrum data required for the electromagnetic environment test. Among them, the test parameters required for the electromagnetic environment test include reference bandwidth, antenna gain, antenna factor, RF channel gain and resolution bandwidth. The test spectrum data is the spectrum data of the electromagnetic environment signal around the proposed aeronautical ground radio station site.

步骤二：对测试频谱数据融合处理输出综合频谱数据。融合处理采用的方法如下：Step 2: Integrate and process the test spectrum data to output comprehensive spectrum data. The fusion processing method is as follows:

将频谱数据

Figure DEST_PATH_IMAGE061
（u为正整数）进行融合处理，并输出综合频谱数据H。convert spectral data
Figure DEST_PATH_IMAGE061
(u is a positive integer) for fusion processing, and output the integrated spectrum data H.

Figure 621778DEST_PATH_IMAGE062
，
Figure 621778DEST_PATH_IMAGE062
,

其中，

Figure 137073DEST_PATH_IMAGE002
表示频谱数据S的第u个2行n列的频谱数据矩阵，
Figure 856767DEST_PATH_IMAGE003
表示
Figure 602744DEST_PATH_IMAGE004
矩阵中第1行元素组成的矩阵，
Figure 673468DEST_PATH_IMAGE005
表示
Figure 726875DEST_PATH_IMAGE006
矩阵中第2行元素组成的矩阵，且
Figure 566655DEST_PATH_IMAGE007
，
Figure 47315DEST_PATH_IMAGE008
，其中u=1,2，…m，m和n为正整数；in,
Figure 137073DEST_PATH_IMAGE002
represents the u-th 2-row and n-column spectral data matrix of the spectral data S,
Figure 856767DEST_PATH_IMAGE003
express
Figure 602744DEST_PATH_IMAGE004
A matrix consisting of elements in row 1 of the matrix,
Figure 673468DEST_PATH_IMAGE005
express
Figure 726875DEST_PATH_IMAGE006
a matrix of elements in row 2 of the matrix, and
Figure 566655DEST_PATH_IMAGE007
,
Figure 47315DEST_PATH_IMAGE008
, where u=1,2,...m, m and n are positive integers;

融合后得到综合频谱数据：After fusion, the comprehensive spectrum data is obtained:

Figure 605335DEST_PATH_IMAGE009
Figure 605335DEST_PATH_IMAGE009

其中s为m和n的乘积,

Figure 134537DEST_PATH_IMAGE010
和
Figure 828823DEST_PATH_IMAGE011
为1到s的正整数，
Figure 745964DEST_PATH_IMAGE012
表示H的第
Figure 525701DEST_PATH_IMAGE013
行第
Figure 920910DEST_PATH_IMAGE014
列的元素，且
Figure 672965DEST_PATH_IMAGE015
，
Figure 495428DEST_PATH_IMAGE016
函数表示将矩阵A中的第一行元素按照从小到大的顺序进行排序，第二行元素按照下标与第一行元素相同进行排序。where s is the product of m and n,
Figure 134537DEST_PATH_IMAGE010
and
Figure 828823DEST_PATH_IMAGE011
is a positive integer from 1 to s,
Figure 745964DEST_PATH_IMAGE012
represents the first
Figure 525701DEST_PATH_IMAGE013
row
Figure 920910DEST_PATH_IMAGE014
the elements of the column, and
Figure 672965DEST_PATH_IMAGE015
,
Figure 495428DEST_PATH_IMAGE016
The function indicates that the elements in the first row of matrix A are sorted in ascending order, and the elements in the second row are sorted according to the same subscript as the elements in the first row.

步骤三：根据综合频谱数据和测试参数计算背景噪声实际值和干扰信号。Step 3: Calculate the actual value of background noise and interference signal according to the comprehensive spectrum data and test parameters.

矩阵初始化，背景噪声

Figure 762461DEST_PATH_IMAGE017
，干扰信号
Figure 961361DEST_PATH_IMAGE018
，第一转化矩阵
Figure 630240DEST_PATH_IMAGE019
，第二转化矩阵
Figure 561287DEST_PATH_IMAGE020
，背景噪声均值矩阵
Figure 315616DEST_PATH_IMAGE021
，传递矩阵
Figure 52628DEST_PATH_IMAGE022
，且
Figure 576014DEST_PATH_IMAGE023
，
Figure 5858DEST_PATH_IMAGE024
，
Figure 247483DEST_PATH_IMAGE025
；其中，
Figure 964684DEST_PATH_IMAGE026
为
Figure 608155DEST_PATH_IMAGE027
中第i行第j列的元素，
Figure 943322DEST_PATH_IMAGE028
为
Figure 672243DEST_PATH_IMAGE029
中第i行第j列的元素，
Figure 751058DEST_PATH_IMAGE030
表示Q中第1行第i列的元素，
Figure 186718DEST_PATH_IMAGE031
表示背景噪声均值；Matrix initialization, background noise
Figure 762461DEST_PATH_IMAGE017
, the jamming signal
Figure 961361DEST_PATH_IMAGE018
, the first transformation matrix
Figure 630240DEST_PATH_IMAGE019
, the second transformation matrix
Figure 561287DEST_PATH_IMAGE020
, the background noise mean matrix
Figure 315616DEST_PATH_IMAGE021
, the transfer matrix
Figure 52628DEST_PATH_IMAGE022
,and
Figure 576014DEST_PATH_IMAGE023
,
Figure 5858DEST_PATH_IMAGE024
,
Figure 247483DEST_PATH_IMAGE025
;in,
Figure 964684DEST_PATH_IMAGE026
for
Figure 608155DEST_PATH_IMAGE027
The element in row i and column j of ,
Figure 943322DEST_PATH_IMAGE028
for
Figure 672243DEST_PATH_IMAGE029
The element in row i and column j of ,
Figure 751058DEST_PATH_IMAGE030
represents the element in row 1 and column i in Q,
Figure 186718DEST_PATH_IMAGE031
represents the mean background noise;

计算背景噪声值均值

Figure 958365DEST_PATH_IMAGE032
，
Figure 909004DEST_PATH_IMAGE033
，其中，T表示矩阵的转置；Calculate the mean background noise value
Figure 958365DEST_PATH_IMAGE032
,
Figure 909004DEST_PATH_IMAGE033
, where T represents the transpose of the matrix;

计算矩阵Q，

Figure 791509DEST_PATH_IMAGE034
，计算干扰信号
Figure 143993DEST_PATH_IMAGE035
和背景噪声
Figure 86541DEST_PATH_IMAGE036
，查找矩阵Q中所有大于6分贝的元素，若存在索引正整数r使得
Figure 462159DEST_PATH_IMAGE037
，则让
Figure 882776DEST_PATH_IMAGE038
，然后让
Figure 355346DEST_PATH_IMAGE039
，最后得出干扰信号
Figure 468795DEST_PATH_IMAGE035
，背景噪声
Figure 394026DEST_PATH_IMAGE036
；Calculate the matrix Q,
Figure 791509DEST_PATH_IMAGE034
, calculate the interference signal
Figure 143993DEST_PATH_IMAGE035
and background noise
Figure 86541DEST_PATH_IMAGE036
, find all elements greater than 6 dB in matrix Q, if there is an index positive integer r such that
Figure 462159DEST_PATH_IMAGE037
, then let
Figure 882776DEST_PATH_IMAGE038
, then let
Figure 355346DEST_PATH_IMAGE039
, and finally get the interference signal
Figure 468795DEST_PATH_IMAGE035
, background noise
Figure 394026DEST_PATH_IMAGE036
;

背景噪声测量值

Figure 556017DEST_PATH_IMAGE040
的计算方法如下：Background noise measurements
Figure 556017DEST_PATH_IMAGE040
is calculated as follows:

Figure 617514DEST_PATH_IMAGE041
，
Figure 617514DEST_PATH_IMAGE041
,

其中，函数max（A）表示求矩阵A所有元素中第一个最大值；Among them, the function max(A) means to find the first maximum value among all elements of matrix A;

所述背景噪声实际值

Figure 901865DEST_PATH_IMAGE042
的计算方法如下：The actual value of the background noise
Figure 901865DEST_PATH_IMAGE042
is calculated as follows:

当背景噪声测量值

Figure 314391DEST_PATH_IMAGE040
的单位为
Figure 342390DEST_PATH_IMAGE043
，背景噪声实际值
Figure 960191DEST_PATH_IMAGE044
的单位为
Figure 149864DEST_PATH_IMAGE045
时，
Figure 49687DEST_PATH_IMAGE046
；When background noise is measured
Figure 314391DEST_PATH_IMAGE040
The unit is
Figure 342390DEST_PATH_IMAGE043
, the actual value of background noise
Figure 960191DEST_PATH_IMAGE044
The unit is
Figure 149864DEST_PATH_IMAGE045
hour,
Figure 49687DEST_PATH_IMAGE046
;

当背景噪声测量值

Figure 615798DEST_PATH_IMAGE040
的单位为
Figure 917466DEST_PATH_IMAGE047
，背景噪声实际值
Figure 215723DEST_PATH_IMAGE042
的单位为
Figure 602842DEST_PATH_IMAGE047
时，
Figure 972644DEST_PATH_IMAGE048
；When background noise is measured
Figure 615798DEST_PATH_IMAGE040
The unit is
Figure 917466DEST_PATH_IMAGE047
, the actual value of background noise
Figure 215723DEST_PATH_IMAGE042
The unit is
Figure 602842DEST_PATH_IMAGE047
hour,
Figure 972644DEST_PATH_IMAGE048
;

当背景噪声测量值

Figure 863239DEST_PATH_IMAGE049
的单位为
Figure 660294DEST_PATH_IMAGE050
，背景噪声实际值
Figure 269130DEST_PATH_IMAGE042
的单位为
Figure 380305DEST_PATH_IMAGE051
时，
Figure 390987DEST_PATH_IMAGE052
；When background noise is measured
Figure 863239DEST_PATH_IMAGE049
The unit is
Figure 660294DEST_PATH_IMAGE050
, the actual value of background noise
Figure 269130DEST_PATH_IMAGE042
The unit is
Figure 380305DEST_PATH_IMAGE051
hour,
Figure 390987DEST_PATH_IMAGE052
;

其中，天线因子AF单位为

Figure 358943DEST_PATH_IMAGE053
，射频通道增益
Figure 455075DEST_PATH_IMAGE054
单位为
Figure 166679DEST_PATH_IMAGE055
，天线增益
Figure 969550DEST_PATH_IMAGE056
单位为
Figure 108407DEST_PATH_IMAGE057
，基准带宽
Figure 691835DEST_PATH_IMAGE058
和分辨率带宽
Figure 941551DEST_PATH_IMAGE059
的单位为
Figure 926824DEST_PATH_IMAGE060
。Among them, the unit of antenna factor AF is
Figure 358943DEST_PATH_IMAGE053
, RF channel gain
Figure 455075DEST_PATH_IMAGE054
Unit is
Figure 166679DEST_PATH_IMAGE055
, the antenna gain
Figure 969550DEST_PATH_IMAGE056
Unit is
Figure 108407DEST_PATH_IMAGE057
, the base bandwidth
Figure 691835DEST_PATH_IMAGE058
and resolution bandwidth
Figure 941551DEST_PATH_IMAGE059
The unit is
Figure 926824DEST_PATH_IMAGE060
.

传统的检测方案，直接读取背景噪声的测量值就开始对拟建航空无线电台(站)址周围的电磁环境进行评估，本实施例提供的电磁环境检测方法的相比传统检测方案的准确率更高。The traditional detection scheme starts to evaluate the electromagnetic environment around the proposed aeronautical radio station (station) by directly reading the measured value of the background noise. Compared with the traditional detection scheme, the electromagnetic environment detection method provided in this embodiment has an accuracy rate of higher.

本实施例提供的一种电磁环境检测方法，通过采集拟建航空无线电台(站)址周围的电磁环境信号的频谱数据，并对频谱数据进行融合后计算获得拟建航空无线电台(站)址环境的干扰信号与背景噪声实际值，为航空无线电台(站)的新建、迁建、扩建等提供了可靠参考依据。In an electromagnetic environment detection method provided by this embodiment, the proposed aeronautical radio station (station) address is obtained by collecting spectrum data of electromagnetic environment signals around a proposed aeronautical radio station (station) site, and after fusing the spectrum data. The actual value of the environmental interference signal and background noise provides a reliable reference for the new construction, relocation and expansion of aeronautical radio stations (stations).

实施例2Example 2

如图2所示，是本实施例提供的一种电磁环境检测方法流程框图。该方法相比于前述实施例，增加了对测试频段的干扰信号和背景噪声实际值的进一步检测步骤，检测拟建航空无线电台(站)址周围的电磁环境的干扰信号和背景噪声实际值是否能够满足建站条件。As shown in FIG. 2 , it is a flowchart of an electromagnetic environment detection method provided by this embodiment. Compared with the previous embodiment, the method adds a further step of detecting the actual value of the interference signal and background noise in the test frequency band, and detects whether the interference signal and the actual value of the background noise of the electromagnetic environment around the proposed aeronautical radio station (station) site are not Able to meet the site conditions.

此时还需要输入的测试参数有最大允许干扰场强和最大允许干扰功率，根据干扰信号、背景噪声实际值与最大允许干扰功率或最大允许干扰场强的比较，检测测试频段的干扰信号和背景噪声。At this time, the test parameters that need to be input include the maximum allowable interference field strength and maximum allowable interference power. According to the comparison of the actual value of the interference signal and background noise with the maximum allowable interference power or maximum allowable interference field strength, the interference signal and background in the test frequency band are detected. noise.

具体地，比较背景噪声实际值与最大允许干扰功率或最大允许干扰场强的大小。Specifically, compare the actual value of the background noise with the size of the maximum allowable interference power or the maximum allowable interference field strength.

若背景噪声实际值小于最大允许干扰功率或最大允许干扰场强，且干扰信号是零矩阵，检测结果为测试频段没有出现超过最大允许干扰功率或最大允许干扰场强的干扰信号及背景噪声。在拟建航空无线电台（站）处电磁环境符合要求，具备设台条件。If the actual value of the background noise is less than the maximum allowable interference power or maximum allowable interference field strength, and the interference signal is a zero matrix, the detection result is that there is no interference signal and background noise exceeding the maximum allowable interference power or maximum allowable interference field strength in the test frequency band. The electromagnetic environment at the proposed aeronautical radio station (station) meets the requirements, and the conditions for setting up the station are met.

若背景噪声实际值小于最大允许干扰功率或最大允许干扰场强，且干扰信号是非零矩阵，则列出干扰信号矩阵第一行中非零元素构成的频率点或频段，以及对应的幅度值，检测结果为测试频段内存在干扰信号。在拟建航空无线电台（站）处电磁环境符合要求，具备设台条件。If the actual value of the background noise is less than the maximum allowable interference power or the maximum allowable interference field strength, and the interference signal is a non-zero matrix, then list the frequency points or frequency bands formed by the non-zero elements in the first row of the interference signal matrix, and the corresponding amplitude value, The detection result is that there is interference signal in the test frequency band. The electromagnetic environment at the proposed aeronautical radio station (station) meets the requirements, and the conditions for setting up the station are met.

若背景噪声实际值大于最大允许干扰功率或最大允许干扰场强，且干扰信号是零矩阵，检测结果为测试频段内背景噪声超出最大允许干扰功率或最大允许干扰场强。在拟建航空无线电台（站）处电磁环境不符合要求，不具备设台条件。If the actual value of the background noise is greater than the maximum allowable interference power or maximum allowable interference field strength, and the interference signal is a zero matrix, the detection result is that the background noise in the test frequency band exceeds the maximum allowable interference power or maximum allowable interference field strength. The electromagnetic environment at the proposed aeronautical radio station (station) does not meet the requirements and does not have the conditions for setting up the station.

若背景噪声实际值大于最大允许干扰功率或最大允许干扰场强，且干扰信号是非零矩阵，则列出干扰信号矩阵第一行中非零元素构成的频率点或频段，以及对应的幅度值，检测结果为测试频段内存在干扰信号且背景噪声超出最大允许干扰功率或最大允许干扰场强。在拟建航空无线电台（站）处电磁环境不符合要求，不具备设台条件。If the actual value of the background noise is greater than the maximum allowable interference power or the maximum allowable interference field strength, and the interference signal is a non-zero matrix, then list the frequency points or frequency bands formed by the non-zero elements in the first row of the interference signal matrix, and the corresponding amplitude value, The detection result is that there is an interference signal in the test frequency band and the background noise exceeds the maximum allowable interference power or the maximum allowable interference field strength. The electromagnetic environment at the proposed aeronautical radio station (station) does not meet the requirements and does not have the conditions for setting up the station.

本实施例提供的一种电磁环境检测方法，相比于前述实施例，通过对干扰信号、背景噪声实际值与最大允许干扰功率或最大允许干扰场强的比较，检测测试频段的干扰信号和背景噪声是否超过标准，进一步为机场地面航空无线电台（站）的新建、迁建、扩建后的安全运行和频率的指配提供可靠的依据。Compared with the previous embodiments, the electromagnetic environment detection method provided in this embodiment detects the interference signal and background of the test frequency band by comparing the actual value of the interference signal and background noise with the maximum allowable interference power or the maximum allowable interference field strength. Whether the noise exceeds the standard will further provide a reliable basis for the safe operation and frequency assignment of the new construction, relocation and expansion of the ground aviation radio stations (stations) at the airport.

实施例3Example 3

如图3所示，是本实施例提供的一种电磁环境检测装置频谱数据输入部分的结构示意图。该装置具体包括测试参数输入部分、频谱数据采集部分和电磁环境检测部分。测试参数输入部分图中未示出，可通过计算机、手机等各种终端连接电磁环境检测部分直接输入。As shown in FIG. 3 , it is a schematic structural diagram of a spectrum data input part of an electromagnetic environment detection apparatus provided in this embodiment. The device specifically includes a test parameter input part, a spectrum data acquisition part and an electromagnetic environment detection part. The test parameter input part is not shown in the figure, and can be directly input by connecting to the electromagnetic environment detection part through various terminals such as computers and mobile phones.

频谱数据采集部分包括接收天线，接收天线通过射频电缆和预处理器连接，预处理器通过射频电缆和频谱仪连接，频谱仪与计算单元通讯连接。其中，接收天线的工作频段应完全包含拟建台站所对应的无线电频段，且极化方式应与拟建台站实际工作的天线极化方式一致；预处理器需要根据实际测试的环境进行选择，其中，衰减器用于保护测试设备不被损坏，低噪声放大器用于提高干扰信号的检测率，滤波器用于过滤非测试频段内的大功率的信号以确保被测频段内信号的准确性。频谱仪用于接收来自接收天线和预处理器通过射频电缆传输的射频信号，然后经过频谱仪处理之后输出频谱数据。频谱仪需要设置正确的测试参数，设置要求：第一，测试频段：即拟建航空地面无线电台站对应的无线电频段，包括民航通信、导航、监视、气象等对应的无线电频段；第二，分辨率带宽：测试采用的分辨率带宽应小于拟建航空地面无线电台站对应的基准带宽的1/2；第三，剑波方式：拟测频段对应的航空地面无线电台站为脉冲工作方式的，应采用峰值或准峰值检波方式，拟测频段对应的航空地面无线电台站为连续波工作方式的，应采用均方根或平均值检波方式；第四，参考电平：背景噪声和干扰信号全部显示。电磁环境计算单元包括数据融合模块和数据处理模块。其中，数据融合模块用于对测试频谱数据融合处理输出综合频谱数据，数据处理模块用于根据综合频谱数据和测试参数计算背景噪声实际值和干扰信号。具体计算方式参见前述实施例提供的电磁环境检测方法，在此不再进行赘述。The spectrum data acquisition part includes a receiving antenna, the receiving antenna is connected with the preprocessor through a radio frequency cable, the preprocessor is connected with the spectrum analyzer through the radio frequency cable, and the spectrum analyzer is communicated with the computing unit. Among them, the working frequency band of the receiving antenna should completely include the radio frequency band corresponding to the proposed station, and the polarization mode should be consistent with the actual working antenna polarization mode of the proposed station; the preprocessor needs to be selected according to the actual test environment , among them, the attenuator is used to protect the test equipment from being damaged, the low noise amplifier is used to improve the detection rate of the interference signal, and the filter is used to filter the high-power signal in the non-test frequency band to ensure the accuracy of the signal in the measured frequency band. The spectrum analyzer is used to receive the radio frequency signal transmitted from the receiving antenna and the preprocessor through the radio frequency cable, and then output the spectrum data after being processed by the spectrum analyzer. Spectrum analyzer needs to set correct test parameters, setting requirements: first, test frequency band: that is, the radio frequency band corresponding to the proposed aviation ground radio station, including the radio frequency band corresponding to civil aviation communication, navigation, monitoring, meteorology, etc.; Frequency bandwidth: the resolution bandwidth used in the test should be less than 1/2 of the reference bandwidth corresponding to the proposed aeronautical ground radio station; third, Jianbo mode: if the aeronautical ground radio station corresponding to the frequency band to be tested is in the pulse operation mode, The peak or quasi-peak detection method should be used. If the aeronautical ground radio station corresponding to the frequency band to be measured is in the continuous wave operation mode, the root mean square or average value detection method should be used; Fourth, the reference level: all background noise and interference signals show. The electromagnetic environment computing unit includes a data fusion module and a data processing module. Among them, the data fusion module is used to fuse and process the test spectrum data to output comprehensive spectrum data, and the data processing module is used to calculate the actual value of background noise and interference signal according to the comprehensive spectrum data and test parameters. For the specific calculation method, refer to the electromagnetic environment detection method provided in the foregoing embodiment, and details are not described herein again.

电磁环境检测装置还包括与计算单元连接的测试频段检测模块，测试频段检测模块用于根据干扰信号、背景噪声实际值与最大允许干扰功率或最大允许干扰场强的比较，检测测试频段的干扰信号和背景噪声。最大允许干扰功率或最大允许干扰场强的输入方式可采用计算机、手机等终端直接输入，最大允许干扰功率或最大允许干扰场强的具体数值根据相关规范或标准确定。The electromagnetic environment detection device also includes a test frequency band detection module connected to the computing unit. The test frequency band detection module is used to detect the interference signal of the test frequency band according to the comparison between the interference signal and the actual value of the background noise and the maximum allowable interference power or the maximum allowable interference field strength. and background noise. The input method of the maximum allowable interference power or maximum allowable interference field strength can be directly input through terminals such as computers and mobile phones. The specific value of the maximum allowable interference power or maximum allowable interference field strength is determined according to relevant specifications or standards.

本实施例提供的电磁环境检测装置，能够采集拟建航空无线电台(站)址周围的电磁环境信号的频谱数据，并对频谱数据进行融合后计算获得拟建航空无线电台(站)址环境的干扰信号与背景噪声实际值，为航空无线电台(站)的新建、迁建、扩建等提供了可靠参考依据。The electromagnetic environment detection device provided in this embodiment can collect spectrum data of electromagnetic environment signals around the proposed aeronautical radio station (station) site, and fuse the spectrum data to calculate the environment of the proposed aeronautical radio station (station) site. The actual value of the interference signal and background noise provides a reliable reference for the construction, relocation and expansion of aeronautical radio stations (stations).

实施例4Example 4

如图4所示，是本实施例提供的一种电磁环境检测系统结构示意图。该系统包括前述实施例提供的电磁环境检测装置，电磁环境检测装置还连接有输出单元，所述输出单元包括显示模块、报告生成模块和存储模块。其中，显示模块，用于显示测试频段的检测结果。报告生成模块，用于将检测结果生成统一的报告文档，报告可打印后进行查阅或存储。存储模块，用于存储测试频段的检测结果，能够被拥有访问权限的终端调用进行结果追溯。As shown in FIG. 4 , it is a schematic structural diagram of an electromagnetic environment detection system provided in this embodiment. The system includes the electromagnetic environment detection device provided in the foregoing embodiment, and the electromagnetic environment detection device is further connected with an output unit, and the output unit includes a display module, a report generation module and a storage module. Among them, the display module is used to display the detection result of the test frequency band. The report generation module is used to generate a unified report document for the test results, and the report can be printed for review or storage. The storage module is used to store the detection results of the test frequency band, which can be called by the terminal with access rights to trace the results.

本实施例提供的电磁环境检测系统，能够为机场地面航空无线电台（站）的新建、迁建、扩建提供一个可靠的电磁环境检测系统，该系统能够为机场地面航空无线电台（站）的新建、迁建、扩建后的安全运行和频率的指配提供依据。The electromagnetic environment detection system provided by this embodiment can provide a reliable electromagnetic environment detection system for the new construction, relocation and expansion of airport ground aeronautical radio stations (stations). , relocation, and expansion to provide the basis for safe operation and frequency assignment.

以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (7)

1. An electromagnetic environment detection method is characterized by comprising the following steps:
acquiring test parameters and test frequency spectrum data required by an electromagnetic environment test;
the test parameters comprise reference bandwidth, antenna gain, antenna factors, radio frequency channel gain and resolution bandwidth;
performing fusion processing on the test frequency spectrum data to output comprehensive frequency spectrum data;
the fusion treatment adopts the following method:
Figure 854310DEST_PATH_IMAGE001
，
wherein,
Figure 214884DEST_PATH_IMAGE002
a spectral data matrix representing the u 2 nd row n columns of spectral data S,
Figure 290418DEST_PATH_IMAGE003
to represent
Figure 660220DEST_PATH_IMAGE004
The matrix formed by the 1 st row elements in the matrix,
Figure 550816DEST_PATH_IMAGE005
to represent
Figure 347870DEST_PATH_IMAGE006
A matrix composed of the elements of row 2 in the matrix, an
Figure 956706DEST_PATH_IMAGE007
，
Figure 333461DEST_PATH_IMAGE008
Wherein u =1,2, … m, m and n are positive integers;
obtaining comprehensive frequency spectrum data after fusion:
Figure 344142DEST_PATH_IMAGE009
where s is the product of m and n,
Figure 312098DEST_PATH_IMAGE010
and
Figure 408230DEST_PATH_IMAGE011
is a positive integer from 1 to s,
Figure 119834DEST_PATH_IMAGE012
represents H of
Figure 906393DEST_PATH_IMAGE013
Go to the first
Figure 45251DEST_PATH_IMAGE014
Elements of a column, and
Figure 628679DEST_PATH_IMAGE015
，
Figure 878395DEST_PATH_IMAGE016
the function indicates that the first row elements in the matrix A are sorted from small to large, and the second row elements are sorted with the same subscript as the first row elements
Calculating a background noise actual value and an interference signal according to the comprehensive frequency spectrum data and the test parameters;
the method for calculating the interference signal comprises the following steps:
matrix initialization, background noise
Figure 863668DEST_PATH_IMAGE017
Of interfering signals
Figure 111110DEST_PATH_IMAGE018
First transformation matrix
Figure 181834DEST_PATH_IMAGE019
Second transformation matrix
Figure 235241DEST_PATH_IMAGE020
Background noise mean matrix
Figure 75021DEST_PATH_IMAGE021
The transfer matrix
Figure 555681DEST_PATH_IMAGE022
And is and
Figure 533608DEST_PATH_IMAGE023
，
Figure 390705DEST_PATH_IMAGE024
，
Figure 84992DEST_PATH_IMAGE025
(ii) a Wherein,
Figure 736553DEST_PATH_IMAGE026
is composed of
Figure 781869DEST_PATH_IMAGE027
The ith row and the jth column of (g),
Figure 177078DEST_PATH_IMAGE028
is composed of
Figure 663555DEST_PATH_IMAGE029
The ith row and the jth column of (g),
Figure 751596DEST_PATH_IMAGE030
representing the element in row 1 and column i in Q,
Figure 18630DEST_PATH_IMAGE031
representing the background noise mean;
calculating the mean value of the background noise values
Figure 217530DEST_PATH_IMAGE032
，
Figure 620829DEST_PATH_IMAGE033
Where T represents the transpose of the matrix;
the matrix Q is calculated and,
Figure 66723DEST_PATH_IMAGE034
calculating the interference signal
Figure 821052DEST_PATH_IMAGE035
And background noise
Figure 558064DEST_PATH_IMAGE036
Find all elements in the matrix Q greater than 6 db, if there is an indexed positive integer r such that
Figure 81449DEST_PATH_IMAGE037
Then let
Figure 511294DEST_PATH_IMAGE038
Then let it
Figure 425023DEST_PATH_IMAGE039
Finally, an interference signal is obtained
Figure 965726DEST_PATH_IMAGE035
Background noise
Figure 609197DEST_PATH_IMAGE036
；
Background noise measurement
Figure 944363DEST_PATH_IMAGE040
The calculation method of (2) is as follows:
Figure 673285DEST_PATH_IMAGE041
，
wherein, the function max (A) represents the first maximum value in all elements of the matrix A;
the actual value of the background noise
Figure 440515DEST_PATH_IMAGE042
The calculation method of (2) is as follows:
when the background noise measures
Figure 938492DEST_PATH_IMAGE040
Has the unit of
Figure 444560DEST_PATH_IMAGE043
Actual value of background noise
Figure 660778DEST_PATH_IMAGE044
Has the unit of
Figure 543283DEST_PATH_IMAGE045
When the temperature of the water is higher than the set temperature,
Figure 99029DEST_PATH_IMAGE046
；
when the background noise measures
Figure 41577DEST_PATH_IMAGE040
Has the unit of
Figure 479512DEST_PATH_IMAGE047
Actual value of background noise
Figure 900129DEST_PATH_IMAGE042
Has the unit of
Figure 372699DEST_PATH_IMAGE047
When the temperature of the water is higher than the set temperature,
Figure 141940DEST_PATH_IMAGE048
；
when the background noise measures
Figure 67171DEST_PATH_IMAGE049
Has the unit of
Figure 291479DEST_PATH_IMAGE050
Actual value of background noise
Figure 618555DEST_PATH_IMAGE042
Has the unit of
Figure 902906DEST_PATH_IMAGE051
When the temperature of the water is higher than the set temperature,
Figure 253116DEST_PATH_IMAGE052
；
wherein the antenna factor AF unit is
Figure 15536DEST_PATH_IMAGE053
Gain of radio frequency channel
Figure 197118DEST_PATH_IMAGE054
Has a unit of
Figure 652370DEST_PATH_IMAGE055
Gain of antenna
Figure 552193DEST_PATH_IMAGE056
Has a unit of
Figure 827227DEST_PATH_IMAGE057
Reference bandwidth
Figure 863316DEST_PATH_IMAGE058
And resolution bandwidth
Figure 489470DEST_PATH_IMAGE059
Has the unit of
Figure 876589DEST_PATH_IMAGE060
。
2. The method of claim 1, wherein the test parameters further include a maximum allowable interference field strength and a maximum allowable interference power, and the actual values of the interference signal and the background noise are compared with the maximum allowable interference power or the maximum allowable interference field strength to obtain the detection results of the interference signal and the background noise in the test frequency band.
3. The method according to claim 2, wherein the step of comparing the actual values of the interference signal and the background noise with the maximum allowable interference power or the maximum allowable interference field strength to obtain the detection results of the interference signal and the background noise in the test frequency band specifically comprises:
comparing the actual value of the background noise with the maximum allowable interference power or the maximum allowable interference field strength;
if the actual value of the background noise is smaller than the maximum allowable interference power or the maximum allowable interference field strength and the interference signal is a zero matrix, the detection result is that the test frequency band has no interference signal and background noise which exceed the maximum allowable interference power or the maximum allowable interference field strength;
if the actual value of the background noise is smaller than the maximum allowable interference power or the maximum allowable interference field strength and the interference signal is a non-zero matrix, listing a frequency point or a frequency band formed by non-zero elements in the first row of the interference signal matrix and a corresponding amplitude value, wherein the detection result is that the interference signal exists in the test frequency band;
if the actual value of the background noise is greater than the maximum allowable interference power or the maximum allowable interference field strength and the interference signal is a zero matrix, the detection result is that the background noise in the test frequency band exceeds the maximum allowable interference power or the maximum allowable interference field strength;
if the actual value of the background noise is greater than the maximum allowable interference power or the maximum allowable interference field strength and the interference signal is a non-zero matrix, listing a frequency point or a frequency band formed by non-zero elements in the first row of the interference signal matrix and a corresponding amplitude value, and determining that the detection result is that the interference signal exists in the test frequency band and the background noise exceeds the maximum allowable interference power or the maximum allowable interference field strength.
4. The electromagnetic environment detection device comprises an input unit and a calculation unit, and is characterized in that the input unit comprises a frequency spectrum data acquisition module and a test parameter input module, and the calculation unit comprises a data fusion module and a data processing module; wherein,
the data fusion module is used for performing fusion processing on the test spectrum data to output comprehensive spectrum data, and the data processing module is used for calculating a background noise actual value and an interference signal according to the comprehensive spectrum data and the test parameters;
the test parameter input module is used for inputting test parameters required by electromagnetic environment detection.
5. The electromagnetic environment detection apparatus of claim 4, wherein the spectral data acquisition module comprises a receiving antenna, the receiving antenna is connected to the preprocessor via a radio frequency cable, the preprocessor is connected to the spectrometer via a radio frequency cable, the spectrometer is communicatively connected to the computing unit, and the preprocessor comprises an attenuator, a low noise amplifier, and a filter.
6. The electromagnetic environment detecting device of claim 5, further comprising a test frequency band detecting module for comparing the actual values of the interference signal and the background noise with the maximum allowable interference power or the maximum allowable interference field strength to obtain the detection results of the interference signal and the background noise in the test frequency band.
7. An electromagnetic environment detection system, comprising the electromagnetic environment detection device of claim 6, wherein the electromagnetic environment detection device is further connected with an output unit, and the output unit comprises a display module, a report generation module and a storage module; wherein,
the display module is used for displaying the detection result of the test frequency band;
the report generation module is used for generating a uniform report document according to the detection result;
and the storage module is used for storing the detection result of the test frequency band and can be called by the terminal with the access authority to trace the result.
CN202111195824.5A2021-10-142021-10-14 An electromagnetic environment detection method, device and systemActiveCN113644997B (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
CN202111195824.5ACN113644997B (en)2021-10-142021-10-14 An electromagnetic environment detection method, device and system

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
CN202111195824.5ACN113644997B (en)2021-10-142021-10-14 An electromagnetic environment detection method, device and system

Publications (2)

Publication NumberPublication Date
CN113644997A CN113644997A (en)2021-11-12
CN113644997Btrue CN113644997B (en)2022-01-21

Family

ID=78426846

Family Applications (1)

Application NumberTitlePriority DateFiling Date
CN202111195824.5AActiveCN113644997B (en)2021-10-142021-10-14 An electromagnetic environment detection method, device and system

Country Status (1)

CountryLink
CN (1)CN113644997B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN114614922B (en)*2022-03-162024-06-14三亚航空旅游职业学院Spectrum data cleaning method in civil aviation very high frequency communication based on frequency domain

Citations (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN105842561A (en)*2016-03-282016-08-10北京航空航天大学Background signal eliminating method suitable for on-site electromagnetic interference detection
CN111999717A (en)*2020-09-022020-11-27中国人民解放军海军航空大学Adaptive fusion detection method based on covariance matrix structure statistical estimation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6633259B1 (en)*1999-03-052003-10-14Rannuch CorporationMethod and apparatus for improving utility of automatic dependent surveillance
WO2009122778A1 (en)*2008-03-312009-10-08日本電気株式会社Radio station device, radio resource control method, recording medium containing radio station control program, and radio communication system
KR102017885B1 (en)*2012-11-262019-10-22한국전자통신연구원Apparatus and method for evaluating statistical interference concerning multi-source noise environment of electromagnetic zone
CN103207322B (en)*2013-03-062015-12-23郑州大学Techniques in Electromagnetic Measurement is utilized to remove the method for ground unrest
CN106597447A (en)*2016-12-232017-04-26成都西科微波通讯有限公司Airport surface detection radar
CN108847907B (en)*2018-09-132024-06-04成都和跃科技有限公司Automatic monitoring device for civil aviation very high frequency radio interference signals
CN208820778U (en)*2018-09-282019-05-03四川天中星航空科技有限公司 Radio Station Comprehensive Tester
CN109557384B (en)*2019-01-162021-11-09成都中星世通电子科技有限公司Electromagnetic environment quality evaluation method of civil aviation station based on comprehensive application scene
CN111988100B (en)*2020-09-282024-11-05中国电子科技集团公司第五十四研究所 A device for measuring electromagnetic environment interference of earth station
CN112327086B (en)*2020-11-052021-06-29中国民用航空飞行学院Electromagnetic environment evaluation system for civil aviation airport and aviation station
CN113066162B (en)*2021-03-122022-04-29武汉大学 A Rapid Modeling Method of Urban Environment for Electromagnetic Computation
CN113395722B (en)*2021-06-102022-06-07中国民用航空华北地区空中交通管理局内蒙古分局 A civil aviation radio station opening test and interference automatic detection method and device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN105842561A (en)*2016-03-282016-08-10北京航空航天大学Background signal eliminating method suitable for on-site electromagnetic interference detection
CN111999717A (en)*2020-09-022020-11-27中国人民解放军海军航空大学Adaptive fusion detection method based on covariance matrix structure statistical estimation

Also Published As

Publication numberPublication date
CN113644997A (en)2021-11-12

Similar Documents

PublicationPublication DateTitle
CN103616575B (en)Radiation emission testing method
CN110673075B (en)Method for evaluating electromagnetic interference resistance of ultrahigh frequency partial discharge detector
CN104267265A (en)Evaluating system and method based on radio astronomical instrument device electromagnetic radiation
CN111428561B (en) A broadband electromagnetic interference source identification method and system, storage medium and equipment
CN203422434U (en)Radiation emission test system
CN113765601B (en) A shortwave transmitter standing wave detection and calibration device and method
CN105842561A (en)Background signal eliminating method suitable for on-site electromagnetic interference detection
CN113644997B (en) An electromagnetic environment detection method, device and system
CN107390157A (en)A kind of apparatus and method for verifying direct current instrument transformer square-wave response
CN101349721B (en)Method for eliminating environment electrical level suitable for electromagnetic radiation transmitting automatic test
CN112130035A (en) Detection method and equipment of insulator discharge acoustic wave and electromagnetic wave based on UAV
CN108318763A (en)A kind of Electro Magnetic Compatibility verification method based on electric propulsion radiation-emitting simulator
CN103427915A (en)Method and apparatus for interference elimination in standing-wave ratio detection of radio frequency equipment
CN119535056A (en) Electromagnetic compatibility test data processing method and system based on Internet of Things
CN117241299B (en) A method for security analysis and protection of avionics data
CN104297595B (en)The method of electronic equipment radiated immunity test repeatability is improved under the continuous stir mode of reverberation chamber
CN118539999A (en)Electromagnetic sensitive signal modeling method for software radio system receiver
CN111141964A (en) A method for measuring electromagnetic radiation of ion thruster based on wave-transmitting cabin
CN207408505U (en)A kind of arrester early defect live testing system based on total current harmonic wave vector
CN117630512A (en) Reconstruction method and device of time domain waveform in integrated optical waveguide pulsed electric field measurement
CN112751627B (en)Power calibration method and device of wireless module
CN107727964A (en)Wireless type relay protection constant value list intelligent checking technology test platform
CN105222949A (en)The method and apparatus of test vacuum tightness
CN109150330B (en)Method, device, equipment and storage medium for testing blocking performance of wireless receiver
CN114235181A (en) An installation and positioning system for RFID wireless passive temperature measurement chip

Legal Events

DateCodeTitleDescription
PB01Publication
PB01Publication
SE01Entry into force of request for substantive examination
SE01Entry into force of request for substantive examination
GR01Patent grant
GR01Patent grant
[8]ページ先頭
©2009-2025 Movatter.jp