CN111385234A - OFDM radar communication integrated waveform processing method, device, terminal and storage medium - Google Patents
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明属于通信技术领域，尤其涉及一种OFDM雷达通信一体化波形处理 方法、装置、终端及存储介质。The invention belongs to the field of communication technologies, and in particular relates to an integrated waveform processing method, device, terminal and storage medium for OFDM radar communication.
背景技术Background technique
近年来，雷达通信一体化技术由于其可以同时实现目标探测与数据传输功 能的特点，而受到了广泛关注。实现雷达与通信系统的一体化有助于实现装备 的通用化、小型化和多功能化，避免过多占用资源，降低成本，具有十分重要 的现实意义。In recent years, the integrated technology of radar communication has received extensive attention because it can simultaneously realize the functions of target detection and data transmission. The integration of radar and communication system is helpful to realize the generalization, miniaturization and multi-function of equipment, avoid excessive occupation of resources and reduce costs, which is of great practical significance.
雷达通信一体化波形设计与整个雷达通信一体化系统的性能相关，是雷达 通信一体化系统设计中的重点和难点。现有的雷达通信一体化波形设计方法可 以分为两类：第一类是采用复用技术，包括空分复用、码分复用、时分复用和 频分复用；第二类是采用信号共用技术，对于信号共用技术可以分为三种：一 为基于雷达常用波形；二为基于通信信号；三为基于前述两者叠加。对于直接 使用通信信号的一体化波形设计方法，主要是使用正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)信号，然而，目前设计出的OFDM一 体化波形被应用于雷达通信一体化系统时，雷达通信一体化系统的探测性能较差。The radar communication integrated waveform design is related to the performance of the entire radar communication integrated system, and is the key and difficult point in the radar communication integrated system design. The existing radar communication integrated waveform design methods can be divided into two categories: the first type is to use multiplexing technology, including space division multiplexing, code division multiplexing, time division multiplexing and frequency division multiplexing; the second type is to use multiplexing techniques. The signal sharing technology can be divided into three types: one is based on common radar waveforms; the other is based on communication signals; the third is based on the superposition of the above two. For the integrated waveform design method that directly uses the communication signal, the Orthogonal Frequency Division Multiplexing (OFDM) signal is mainly used. However, the currently designed OFDM integrated waveform is applied to the radar communication integrated system. , the detection performance of the radar communication integrated system is poor.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明实施例提供了一种OFDM雷达通信一体化波形处理方法、 装置及终端设备，以改善雷达通信一体化系统的探测性能。In view of this, embodiments of the present invention provide an OFDM radar communication integrated waveform processing method, device, and terminal device, so as to improve the detection performance of the radar communication integrated system.
本发明实施例的第一方面提供了一种OFDM雷达通信一体化波形处理方 法，包括：A first aspect of the embodiments of the present invention provides an integrated waveform processing method for OFDM radar communication, including:
获取通信信息数据；Obtain communication information data;
生成Kasami序列；Generate Kasami sequences;
通过所述Kasami序列对所述通信信息数据进行预编码；precoding the communication information data by the Kasami sequence;
将预编码后的通信信息数据调制至子载波上。The precoded communication information data is modulated onto the subcarriers.
可选的，所述生成Kasami序列，包括：Optionally, the generating Kasami sequence includes:
通过r位移位寄存器生成周期为k的m序列族；其中，k＝2r-1；The m sequence family with period k is generated by the r bit shift register; wherein, k=2r -1;
对所述m序列族进行本征取样，获得多个周期为k的m序列；Perform intrinsic sampling on the m-sequence family to obtain a plurality of m-sequences with a period of k;
基于所述多个周期为k的m序列，生成m序列优选对；generating m-sequence preferred pairs based on the plurality of m-sequences with periods k;
基于所述m序列优选对生成Kasami序列族，并选取Kasami序列族中的一 组作为所述Kasami序列；其中，所述Kasami序列的位数为N，N＝2r-1。A Kasami sequence family is generated based on the preferred pair of the m sequences, and a group of the Kasami sequence family is selected as the Kasami sequence; wherein, the number of digits of the Kasami sequence is N, and N=2r -1.
可选的，所述对所述m序列族进行本征取样，获得多个周期为k的m序列， 包括：Optionally, performing intrinsic sampling on the m-sequence family to obtain multiple m-sequences with a period of k, including:
通过奇数为q的本征取样获得所有周期为k的m序列；其中，q满足 gcd(k,q)＝1，且q<k；Obtain all m sequences with period k by eigensampling with odd number q; wherein, q satisfies gcd(k, q)=1, and q<k;
去除所述所有周期为k的m序列中不同相位的同一m序列，获得所述多个 周期为k的m序列。The same m-sequences with different phases are removed from all the m-sequences with period k to obtain the multiple m-sequences with period k.
可选的，所述通过所述Kasami序列对所述通信信息数据进行预编码，包括：Optionally, the precoding of the communication information data by the Kasami sequence includes:
将所述通信信息数据的每一位扩展为N位；Extending each bit of the communication information data into N bits;
将所述Kasami序列循环l次后与扩展后的通信信息数据进行点乘运算，获 得预编码后的通信信息数据；其中，l为所述通信信息数据的位数，所述预编码 后的通信信息数据的数据位数为l*N。After the Kasami sequence is circulated for 1 times, a point multiplication operation is performed with the expanded communication information data to obtain precoded communication information data; wherein, l is the number of bits of the communication information data, and the precoded communication information The number of data bits of the information data is l*N.
可选的，在所述将预编码后的通信信息数据调制至子载波上之前，所述 OFDM雷达通信一体化波形处理方法还包括：Optionally, before the precoded communication information data is modulated onto the subcarrier, the OFDM radar communication integrated waveform processing method further includes:
通过16QAM调制将所述预编码后的通信信息数据映射为信息调制信号， 并通过串并转换将所述信息调制信号转换为多路并行信号；其中，所述多路并 行信号的路数与所述子载波的个数相同；The precoded communication information data is mapped into an information modulation signal through 16QAM modulation, and the information modulation signal is converted into a multi-channel parallel signal through serial-to-parallel conversion; wherein, the number of channels of the multi-channel parallel signal is the same as that of all channels. The number of subcarriers is the same;
对所述多路并行信号进行IFFT变换；performing IFFT transformation on the multi-channel parallel signals;
相应的，所述将预编码后的通信信息数据调制至子载波上，包括：Correspondingly, the modulating the precoded communication information data onto the subcarriers includes:
将进行IFFT变换后的多路并行信号调制至子载波上，获得并行数据流；Modulate the multi-channel parallel signals after IFFT transformation to sub-carriers to obtain parallel data streams;
通过并串转换将所述并行数据流换转换为串行数据流。The parallel data stream is converted into a serial data stream by parallel-serial conversion.
可选的，在所述将预编码后的通信信息数据调制至子载波上，获得并行数 据流之后，所述OFDM雷达通信一体化波形处理方法还包括：Optionally, after the precoded communication information data is modulated onto the subcarriers to obtain parallel data streams, the OFDM radar communication integrated waveform processing method further includes:
对所述并行数据流增加循环前缀；adding a cyclic prefix to the parallel data stream;
相应的，所述通过并串转换将所述并行数据流换转换为串行数据流，包括：Correspondingly, converting the parallel data stream into a serial data stream through parallel-serial conversion includes:
通过并串转换将增加循环前缀后的并行数据流转换为串行数据流。The parallel data stream after adding the cyclic prefix is converted into a serial data stream through parallel-serial conversion.
可选的，在所述将预编码后的通信信息数据调制至子载波上之后，所述 OFDM雷达通信一体化波形处理方法还包括：Optionally, after the precoded communication information data is modulated onto the subcarrier, the OFDM radar communication integrated waveform processing method further includes:
通过数模转换将调制至子载波上之后生成的信号转换为模拟信号；Convert the signal generated after being modulated onto the subcarrier into an analog signal through digital-to-analog conversion;
通过上变频将所述模拟信号变换至高频载波上。The analog signal is converted to a high frequency carrier by up-conversion.
本发明实施例的第二方面提供了一种OFDM雷达通信一体化波形处理装 置，包括：A second aspect of the embodiments of the present invention provides an OFDM radar communication integrated waveform processing device, including:
信息获取模块，用于获取通信信息数据；an information acquisition module for acquiring communication information data;
序列生成模块，用于生成Kasami序列；Sequence generation module for generating Kasami sequences;
预编码模块，用于通过所述Kasami序列对所述通信信息数据进行预编码；a precoding module, configured to perform precoding on the communication information data through the Kasami sequence;
调制模块，用于将预编码后的通信信息数据调制至子载波上。The modulation module is used for modulating the precoded communication information data onto the subcarrier.
本发明实施例的第三方面提供了一种终端设备，包括存储器、处理器以及 存储在所述存储器中并可在所述处理器上运行的计算机程序，所述处理器执行 所述计算机程序时实现如本发明实施例第一方面提供的OFDM雷达通信一体 化波形处理方法的步骤。A third aspect of the embodiments of the present invention provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, when the processor executes the computer program The steps of implementing the OFDM radar communication integrated waveform processing method provided by the first aspect of the embodiments of the present invention.
本发明实施例的第四方面提供了一种计算机可读存储介质，所述计算机可 读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如本发明 实施例第一方面提供的OFDM雷达通信一体化波形处理方法的步骤。A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the implementation of the first aspect of the embodiments of the present invention is implemented Steps of an integrated waveform processing method for OFDM radar communication.
本发明实施例首先获取通信信息数据，并生成Kasami序列；通过Kasami 序列对所述通信信息数据进行预编码后，将预编码后的通信信息数据调制至子 载波上，完成OFDM雷达通信一体化波形的处理。在上述过程中，由于Kasami 序列具有良好相关特性，从而改善了OFDM雷达通信一体化波形的模糊函数， 进而提升了雷达通信一体化系统的探测性能。The embodiment of the present invention first acquires communication information data, and generates a Kasami sequence; after precoding the communication information data through the Kasami sequence, the precoded communication information data is modulated onto subcarriers to complete the OFDM radar communication integrated waveform processing. In the above process, since the Kasami sequence has good correlation characteristics, the ambiguity function of the OFDM radar communication integrated waveform is improved, and the detection performance of the radar communication integrated system is further improved.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技 术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅 仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳 动性的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1是本发明实施例提供的OFDM雷达通信一体化波形处理方法的流程示 意图；1 is a schematic flowchart of an integrated waveform processing method for OFDM radar communication provided by an embodiment of the present invention;
图2是发明实施例提供的进行预编码的OFDM雷达通信一体化波形的雷达 三维模糊函数图；Fig. 2 is the radar three-dimensional ambiguity function diagram of the precoding OFDM radar communication integrated waveform provided by the embodiment of the invention;
图3本发明实施例提供的进行预编码的OFDM雷达通信一体化波形的雷达 距离模糊函数图；Fig. 3 is the radar range ambiguity function diagram of the OFDM radar communication integrated waveform for precoding provided by the embodiment of the present invention;
图4是本发明实施例提供的不进行预编码的OFDM雷达通信一体化波形的 雷达三维模糊函数图；4 is a radar three-dimensional ambiguity function diagram of an OFDM radar communication integrated waveform without precoding provided by an embodiment of the present invention;
图5是本发明实施例提供的不进行预编码的OFDM雷达通信一体化波形的 雷达距离模糊函数图；5 is a radar range ambiguity function diagram of an OFDM radar communication integrated waveform without precoding provided by an embodiment of the present invention;
图6是包括性能验证的OFDM雷达通信一体化波形处理方法的系统框架图；FIG. 6 is a system frame diagram of an OFDM radar communication integrated waveform processing method including performance verification;
图7是本发明实施例提供的OFDM雷达通信一体化波形处理装置的结构示 意图；7 is a schematic structural diagram of an OFDM radar communication integrated waveform processing device provided by an embodiment of the present invention;
图8是本发明实施例提供的终端设备的结构示意图。FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention.
具体实施方式Detailed ways
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术 之类的具体细节，以便透彻理解本发明实施例。然而，本领域的技术人员应当 清楚，在没有这些具体细节的其它实施例中也可以实现本发明。在其它情况中， 省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节 妨碍本发明的描述。In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and techniques are set forth in order to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
本发明的说明书和权利要求书及上述附图中的术语“包括”以及其他任何 变形，是指“包括但不限于”，意图在于覆盖不排他的包含。例如包含一系列 步骤或单元的过程、方法或系统、产品或设备没有限定于已列出的步骤或单元， 而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方 法、产品或设备固有的其它步骤或单元。此外，术语“第一”、“第二”和“第 三”等是用于区别不同对象，而非用于描述特定顺序。The term "including" and any other variations in the description and claims of the present invention and the above drawings means "including but not limited to", and is intended to cover non-exclusive inclusion. For example, a process, method or system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes Other steps or units inherent in these processes, methods, products or devices. Furthermore, the terms "first", "second" and "third" etc. are used to distinguish between different objects, rather than to describe a particular order.
为了说明本发明所述的技术方案，下面通过具体实施例来进行说明。In order to illustrate the technical solutions of the present invention, the following specific embodiments are used for description.
图1为本实施例提供的OFDM雷达通信一体化波形处理方法的流程示意图， 参示图1，该方法包括：FIG. 1 is a schematic flowchart of an integrated waveform processing method for OFDM radar communication provided by this embodiment. Referring to FIG. 1, the method includes:
步骤S101，获取通信信息数据。Step S101, acquiring communication information data.
在实际应用中，所述通信信息数据为包括信息数据的二进制序列，当然也 可以是其他形式的数据序列。在本发明实施例中，为了在后续过程中方便验证 本方法对于OFDM雷达通信一体化系统探测性能的提升，可以采用预设长度的 随机数作为通信信息数据。具体的，可以设置子载波个数为4，每帧的OFDM 符号数为4，每符号上的比特数为4，采样频率设置为4*106Hz，每个OFDM符 号的持续时间为1μs，保护间隔与OFDM数据的比例设为1:4，基于上述设置， 产生一组长度为64的由0和1组成的随机数作为通信信息数据。In practical applications, the communication information data is a binary sequence including information data, and of course it can also be a data sequence in other forms. In the embodiment of the present invention, in order to conveniently verify the improvement of the detection performance of the OFDM radar communication integrated system by the method in the subsequent process, a random number with a preset length may be used as the communication information data. Specifically, the number of subcarriers can be set to 4, the number of OFDM symbols in each frame is 4, the number of bits in each symbol is 4, the sampling frequency can be set to 4*106 Hz, the duration of each OFDM symbol is 1 μs, The ratio of the guard interval to the OFDM data is set to 1:4. Based on the above setting, a set of random numbers with a length of 64 consisting of 0 and 1 is generated as the communication information data.
步骤S102，生成Kasami序列。Step S102, generating a Kasami sequence.
本发明实施例中，Kasami序列是一种伪随机序列，它具有互相关值小的特 性。Kasami序列的生成方式包括多种，可以由满足条件的m序列经过各种取 样和变换生成。本发明实施例中，考虑到通信速率，首先由6位移位寄存器产 生满足条件的最短m序列，并根据该m序列最终产生数据长度为63位的Kasami 序列，提升预编码效果。In the embodiment of the present invention, the Kasami sequence is a pseudo-random sequence, which has the characteristic of a small cross-correlation value. There are many ways to generate Kasami sequences, which can be generated by m-sequences that meet the conditions through various sampling and transformation. In the embodiment of the present invention, considering the communication rate, the shortest m sequence that satisfies the condition is firstly generated by the 6-bit shift register, and the Kasami sequence with a data length of 63 bits is finally generated according to the m sequence, so as to improve the precoding effect.
步骤S103，通过所述Kasami序列对所述通信信息数据进行预编码。Step S103, precoding the communication information data through the Kasami sequence.
本发明实施例中，在采用Kasami序列对所述通信信息数据进行预编码时， 可以对通信信息数据每一位进行扩展，并与Kasami序列进行点乘。由于Kasami 序列的良好的相关特性，可以使得预编码后的通信信息数据具有更好的相关性。In the embodiment of the present invention, when the Kasami sequence is used to precode the communication information data, each bit of the communication information data may be extended, and a point multiplication with the Kasami sequence may be performed. Due to the good correlation characteristics of the Kasami sequence, the precoded communication information data can have better correlation.
步骤S104，将预编码后的通信信息数据调制至子载波上。Step S104, modulate the precoded communication information data onto the subcarrier.
本发明实施例中，可以将预编码后的信息数据调制至子载波上，进而完成 OFDM调制，实现OFDM雷达通信一体化波形的处理。In the embodiment of the present invention, the precoded information data can be modulated onto the sub-carrier, thereby completing the OFDM modulation, and realizing the processing of the integrated waveform of the OFDM radar communication.
上述OFDM雷达通信一体化波形处理方法，首先获取通信信息数据，并生 成Kasami序列；通过Kasami序列对所述通信信息数据进行预编码后，将预编 码后的通信信息数据调制至子载波上，完成OFDM雷达通信一体化波形的处理。 在上述过程中，利用Kasami序列具有的良好相关特性，使得处理得到的OFDM 雷达通信一体化波形具有更好的模糊函数，而模糊函数用于评价系统的雷达探 测性能，进而提升了雷达通信一体化系统的探测性能。In the above-mentioned OFDM radar communication integrated waveform processing method, firstly, the communication information data is obtained, and a Kasami sequence is generated; after the communication information data is precoded by the Kasami sequence, the precoded communication information data is modulated on the subcarrier, and the completion of OFDM radar communication integrated waveform processing. In the above process, the good correlation characteristics of Kasami sequence are used to make the processed OFDM radar communication integrated waveform have a better ambiguity function, and the fuzzy function is used to evaluate the radar detection performance of the system, thereby improving the integration of radar communication. detection performance of the system.
一些实施例中，所述生成Kasami序列，可以包括：通过r位移位寄存器 生成周期为k的m序列族；其中，k＝2r-1；对所述m序列族进行本征取样，获 得多个周期为k的m序列；基于所述多个周期为k的m序列，生成m序列优 选对；基于所述m序列优选对生成Kasami序列族，并选取Kasami序列族中的 一组作为所述Kasami序列；其中，所述Kasami序列的位数为N，N＝2r-1。In some embodiments, the generating the Kasami sequence may include: generating an m sequence family with a period of k through an r bit shift register; where k=2r −1; performing intrinsic sampling on the m sequence family to obtain Multiple m sequences with period k; based on the multiple m sequences with period k, generate a preferred pair of m sequences; generate a Kasami sequence family based on the m sequence preferred pairs, and select a group in the Kasami sequence family as the The Kasami sequence; wherein, the number of digits of the Kasami sequence is N, and N=2r -1.
本发明实施例中，采用m序列生成所述Kasami序列，设置m序列移位寄 存器位数r为6，反馈系数选取103F，根据反馈系数103F即[1 0 0 0 0 1 1]得到 本原多项式f1(x)＝1+x+x6，移位寄存器的初始状态设置为[0 0 0 0 0 1]，最高位 寄存器状态为1，再根据移位寄存器的工作原理可以产生一个周期k为63的m 序列族。在获得该m序列族后，对m序列族进行取样。在取样时，每次取样不 一定能产生另一个m序列，当取样产生另一个m序列时，这种取样被称为本征 取样，经过本征取样后，获得多个周期为63的m序列。基于所述多个周期为63的m序列，生成m序列优选对，m序列优选对是指在m序列集中的两个m 序列的互相关函数绝对值的最大值(称为峰值互相关函数)|R(τ)|max小于要求的特 定值；基于所述m序列优选对生成Kasami序列族。本发明实施例中，Kasami 序列族中的每个Kasami序列可以均由通过两个序列的模二运算得到，其中一个 序列为前述的满足优选对的m序列，另一个为对前述优选对序列进行抽取得到 的序列，可以命名为v序列。具体的，v序列通过公式v＝u(2r/2+1)完成抽取，则 周期为2r/2-1，Kasami序列族由满足优选对的序列m和所有可能相位的v序列通过模二运算得到，共有r/2个，每一个Kasami序列的周期为N＝2r-1，即周期 为63，也即此Kasami序列的位数为63。在获得的由多个Kasami序列组成的 Kasami序列族后，从中抽取一组作为所述Kasami序列。上述方法可以有效的 生成最短序列长度的Kasami序列，进而提升预编码后的通信信息数据的通信速 率。In the embodiment of the present invention, the m sequence is used to generate the Kasami sequence, the number of bits r of the m sequence shift register is set to 6, the feedback coefficient is 103F, and the primitive polynomial is obtained according to the feedback coefficient 103F, that is, [1 0 0 0 0 1 1] f1 (x)=1+x+x6 , the initial state of the shift register is set to [0 0 0 0 0 1], the state of the most significant register is 1, and then a cycle k can be generated according to the working principle of the shift register is the m-sequence family of 63. After the m-sequence family is obtained, the m-sequence family is sampled. When sampling, each sampling may not necessarily produce another m-sequence. When sampling produces another m-sequence, this kind of sampling is called intrinsic sampling. After intrinsic sampling, multiple m-sequences with a period of 63 are obtained. . Based on the plurality of m-sequences with a period of 63, a preferred pair of m-sequences is generated, and the preferred pair of m-sequences refers to the maximum value of the absolute value of the cross-correlation function of the two m-sequences in the m-sequence set (referred to as the peak cross-correlation function) |R(τ)|max is less than a specific value required; a family of Kasami sequences is generated based on the m-sequence preference pairs. In the embodiment of the present invention, each Kasami sequence in the Kasami sequence family can be obtained by a modular two operation of two sequences, one of which is the aforementioned m-sequence that satisfies the preferred pair, and the other is obtained from the aforementioned preferred pair sequence. The extracted sequence can be named as v-sequence. Specifically, the v sequence is extracted by the formula v=u(2r/2 +1), then the period is 2r/2 -1, and the Kasami sequence family consists of the sequence m that satisfies the preferred pair and the v sequence of all possible phases through the modulo Two operations are obtained, there are r/2 in total, and the period of each Kasami sequence is N=2r -1, that is, the period is 63, that is, the number of digits of this Kasami sequence is 63. After the Kasami sequence family consisting of a plurality of Kasami sequences is obtained, a group is extracted as the Kasami sequence. The above method can effectively generate the Kasami sequence with the shortest sequence length, thereby improving the communication rate of the precoded communication information data.
一些实施例中，所述对所述m序列族进行本征取样，获得多个周期为k的 m序列，可以包括：通过奇数为q的本征取样获得所有周期为k的m序列；其 中，q满足gcd(k,q)＝1，且q<k；去除所述所有周期为k的m序列中不同相位的 同一m序列，获得所述多个周期为k的m序列。In some embodiments, performing intrinsic sampling on the m-sequence family to obtain multiple m-sequences with a period of k may include: obtaining all m-sequences with a period of k through intrinsic sampling with an odd number of q; wherein, q satisfies gcd(k, q)=1, and q<k; remove the same m-sequences with different phases in all the m-sequences with period k to obtain the multiple m-sequences with period k.
本发明实施例中，对所述m序列族进行本征取样，获得多个周期为k的m 序列的过程具体为：首先，对于一个m序列的抽取，利用奇数为q的本征取样 可以产生出所有周期为k的m序列，其中，当且仅当k和q的最大公约数为1, 即gcd(N,q)＝1时，m序列经过隔q抽取后获得的序列u[q]的周期才为k。在寄 存器位数r为6时，m序列的周期为63，则满足条件的奇数q为5、11、13、 17、19、23、25、29、31、37、41、43、47、53、55、59、61。由于u(q)和隔 2r抽取的序列是不同相位的同一m序列，因此当q为上文所述的17个奇数时， 抽取获得的序列u[q]存在以下关系：In the embodiment of the present invention, the process of performing intrinsic sampling on the m-sequence family to obtain a plurality of m-sequences with a period of k is as follows: first, for the extraction of an m-sequence, the intrinsic sampling with an odd number of q can be used to generate Get all m sequences with period k, among them, if and only if the greatest common divisor of k and q is 1, that is, when gcd(N, q)=1, the sequence u[q] obtained by the m sequence after every q extraction The period is k. When the number of register bits r is 6, and the period of the m sequence is 63, the odd number q that satisfies the condition is 5, 11, 13, 17, 19, 23, 25, 29, 31, 37, 41, 43, 47, 53 , 55, 59, 61. Since u(q) and the sequence extracted every 2r are the same m-sequence with different phases, when q is the 17 odd numbers mentioned above, the sequence u[q] obtained by extraction has the following relationship:
u(5)＝u(10)＝u(20)＝u(40)＝u(17)；u(5)=u(10)=u(20)=u(40)=u(17);
u(11)＝u(22)＝u(44)＝u(25)＝u(37)；u(11)=u(22)=u(44)=u(25)=u(37);
u(13)＝u(26)＝u(52)＝u(41)＝u(19)；u(13)=u(26)=u(52)=u(41)=u(19);
u(23)＝u(46)＝u(29)＝u(58)＝u(53)＝u(43)；u(23)=u(46)=u(29)=u(58)=u(53)=u(43);
u(31)＝u(62)＝u(61)＝u(59)＝u(55)＝u(47)。u(31)=u(62)=u(61)=u(59)=u(55)=u(47).
去除重复的m序列，则最终抽取的m序列为u(5)，u(11)，u(13)，u(23)， u(31)，再加上u(1)，则一共抽取6个m序列。相应的，在生成优选对时，对 于r＝6，m序列优选对互相关的最大值为17；m序列的个数为6个，则共有15 对的m序列组合；其中，满足优选对的为9对，分别为：[u(1),u(5)]，[u(1),u (13)]，[u(1),u(31)]，[u(5),u(11)]，[u(11),u(31)]，[u(13),u(23)]，[u(23),u(31)]， [u(5),u(23)]，[u(11),u(13)]。上述方法，可以获得所有周期为k且不重复的m 序列，用于后续生成m序列优选对，最终生成Kasami序列。Remove the repeated m sequence, then the final extracted m sequence is u(5), u(11), u(13), u(23), u(31), plus u(1), then a total of 6 are extracted m sequences. Correspondingly, when generating the preferred pair, for r=6, the maximum value of the cross-correlation of the preferred pair of m sequences is 17; if the number of m sequences is 6, there are 15 pairs of m sequence combinations; 9 pairs, respectively: [u(1), u(5)], [u(1), u (13)], [u(1), u(31)], [u(5), u (11)], [u(11), u(31)], [u(13), u(23)], [u(23), u(31)], [u(5), u(23 )], [u(11), u(13)]. With the above method, all m-sequences with a period of k and no repetition can be obtained, which are used for the subsequent generation of preferred pairs of m-sequences, and finally the Kasami sequence is generated.
一些实施例中，所述通过所述Kasami序列对所述通信信息数据进行预编码， 可以包括：将所述通信信息数据的每一位扩展为N位；将所述Kasami序列循 环l次后与扩展后的通信信息数据进行点乘运算，获得预编码后的通信信息数 据；其中，l为所述通信信息数据的位数，所述预编码后的通信信息数据的数据 位数为l*N。In some embodiments, the precoding of the communication information data by using the Kasami sequence may include: expanding each bit of the communication information data into N bits; repeating the Kasami sequence for 1 times with The expanded communication information data is subjected to a dot product operation to obtain precoded communication information data; wherein, 1 is the number of bits of the communication information data, and the number of data bits of the precoded communication information data is 1*N .
本发明实施例中，预编码过程为：首先将通信信息数据每一位扩展63位， 再将63位的Kasami序列循环64遍后与扩展后的通信信息数据进行点乘，得到 预编码后的通信信息数据，使预编码后的通信信息数据的数据位数为64*63。 经过预编码后的通信信息数据，结合了Kasami序列的良好的相关特性的优点， 因此，以此为基础进行后续的OFDM雷达通信一体化波形设计时，可以优化最 终产生的OFDM雷达通信一体化波形的模糊函数性能。In the embodiment of the present invention, the precoding process is as follows: firstly, each bit of the communication information data is expanded by 63 bits, and then the 63-bit Kasami sequence is circulated 64 times and then dot-multiplied with the expanded communication information data to obtain the precoded For the communication information data, the data bits of the precoded communication information data are 64*63. The precoded communication information data combines the advantages of the good correlation characteristics of the Kasami sequence. Therefore, when the subsequent OFDM-radar communication integrated waveform design is based on this, the final OFDM-radar communication integrated waveform can be optimized. The fuzzy function performance.
一些实施例中，在所述将预编码后的通信信息数据调制至子载波上之前， 还可以包括：通过16QAM调制将所述预编码后的通信信息数据映射为信息调 制信号，并通过串并转换将所述信息调制信号转换为多路并行信号；其中，所 述多路并行信号的路数与所述子载波的个数相同；对所述多路并行信号进行 IFFT变换；相应的，所述将预编码后的通信信息数据调制至子载波上，包括： 将进行IFFT变换后的多路并行信号调制至子载波上，获得并行数据流；通过并 串转换将所述并行数据流换转换为串行数据流。In some embodiments, before the modulating the precoded communication information data onto the subcarriers, the method may further include: mapping the precoded communication information data into an information modulation signal by 16QAM modulation, and performing serial-parallel modulation on the information modulation signal. Converting the information modulation signal into a multi-channel parallel signal; wherein, the number of the multi-channel parallel signal is the same as the number of the sub-carriers; performing IFFT transformation on the multi-channel parallel signal; Correspondingly, the The modulating the precoded communication information data onto the sub-carriers includes: modulating the multi-channel parallel signals subjected to IFFT transformation onto the sub-carriers to obtain parallel data streams; converting the parallel data streams through parallel-serial conversion for the serial data stream.
本发明实施例中，在将预编码后的通信信息数据调制至子载波上之前，可 以对经过预编码后的通信信息数据进行16QAM调制，用于将基带信号映射为 信息调制信号。再对该信息调制信号进行串并转换，用于将串行的信息调制信 号转变为4路并行信号。最后，将该4路并行信号通过IFFT调制到子载波上， 获得并行数据流，再通过并串转换将并行数据流变为串行数据流，完成对预编 码后的通信信息数据的OFDM调制。In the embodiment of the present invention, before the precoded communication information data is modulated onto the subcarriers, 16QAM modulation may be performed on the precoded communication information data, so as to map the baseband signal into the information modulation signal. Then, serial-parallel conversion is performed on the information modulated signal to convert the serial information modulated signal into four parallel signals. Finally, the 4 channels of parallel signals are modulated onto subcarriers by IFFT to obtain a parallel data stream, and then the parallel data stream is converted into a serial data stream through parallel-serial conversion to complete the OFDM modulation of the precoded communication information data.
一些实施例中，在所述将预编码后的通信信息数据调制至子载波上，获得 并行数据流之后，还可以包括：对所述并行数据流增加循环前缀；相应的，所 述通过并串转换将所述并行数据流换转换为串行数据流，包括：通过并串转换 将增加循环前缀后的并行数据流转换为串行数据流。In some embodiments, after obtaining the parallel data stream by modulating the precoded communication information data on the subcarriers, the method may further include: adding a cyclic prefix to the parallel data stream; Converting the parallel data stream into a serial data stream includes: converting the parallel data stream after adding a cyclic prefix into a serial data stream through parallel-serial conversion.
本发明实施例中，在将预编码后的通信信息数据通过16QAM调制、串并 转换和IFFT调制到4个子载波上，获得并行数据流后，还可以为该并行数据流 增加循环前缀，以减少码间干扰。相应的，最后再将该增加了循环前缀的并行 数据流进行并串转换，完成对预编码后的通信信息数据的OFDM调制。In the embodiment of the present invention, after the precoded communication information data is modulated onto 4 subcarriers through 16QAM modulation, serial-to-parallel conversion, and IFFT to obtain a parallel data stream, a cyclic prefix may also be added to the parallel data stream to reduce Intersymbol interference. Correspondingly, the parallel data stream added with the cyclic prefix is finally converted into parallel to serial to complete the OFDM modulation of the precoded communication information data.
一些实施例中，在所述将预编码后的通信信息数据调制至子载波上之后， 还可以包括：通过数模转换将调制至子载波上之后生成的信号转换为模拟信号； 通过上变频将所述模拟信号变换至高频载波上。In some embodiments, after modulating the precoded communication information data onto the subcarrier, the method may further include: converting the signal generated after being modulated onto the subcarrier into an analog signal through digital-to-analog conversion; The analog signal is converted to a high frequency carrier.
本发明实施例中，通过数模转换将调制至子载波上之后生成的信号转换为 模拟信号，再通过上变频将所述模拟信号变换至高频载波上，即可通过发射天 线将该信号进行发送。In the embodiment of the present invention, a signal generated after being modulated onto a sub-carrier is converted into an analog signal through digital-to-analog conversion, and then the analog signal is converted to a high-frequency carrier through frequency up-conversion, so that the signal can be processed by a transmitting antenna. send.
上述方法应用于发送端，一些实施例中，为了验证通过上述方法产生的OFDM雷达通信一体化波形的应用效果，设置接收端，并提供一种OFDM雷达 通信一体化波形的接收方法，对雷达通信一体化系统的探测性能进行验证，具 体可以包括：接收信号后，通过下变频将在高频载波上的信号变换到低频载波 上，再通过模数转换将模拟信号转换成数字信号；当发送信号包括循环前缀时， 去除循环前缀；对去除循环前缀的数字信号进行模糊函数性能测试。The above method is applied to the transmitting end. In some embodiments, in order to verify the application effect of the OFDM radar communication integrated waveform generated by the above method, the receiving end is set up, and a method for receiving the OFDM radar communication integrated waveform is provided, which is suitable for radar communication. The detection performance of the integrated system is verified, which may include: after receiving the signal, convert the signal on the high-frequency carrier to the low-frequency carrier through down-conversion, and then convert the analog signal into a digital signal through analog-to-digital conversion; When the cyclic prefix is included, remove the cyclic prefix; perform a fuzzy function performance test on the digital signal from which the cyclic prefix is removed.
本发明实施例中，参见图2和图3，图2和图3为接收通过本发明实施例 提供的OFDM雷达通信一体化波形处理方法获得的OFDM雷达通信一体化信 号后，进行雷达模糊函数性能测试得到的测试图。而图4和图5为接收不通过 Kasami序列对通信信息数据进行预编码获得的OFDM雷达通信一体化信号后， 进行雷达模糊函数性能测试得到的测试图。对比图2和图4可以得出图2的中 心峰值更加狭窄，对比图3和图5可以得出图3的主瓣更窄，旁瓣更低，说明 经过预编码的OFDM雷达通信一体化信号表现出更好的雷达模糊函数性能。In the embodiment of the present invention, referring to FIG. 2 and FIG. 3 , FIG. 2 and FIG. 3 show the performance of radar ambiguity function after receiving the OFDM-radar communication integrated signal obtained by the OFDM-radar communication integrated waveform processing method provided by the embodiment of the present invention. The test chart obtained from the test. 4 and 5 are test charts obtained by performing a radar ambiguity function performance test after receiving an OFDM-radar communication integrated signal obtained by precoding the communication information data without using the Kasami sequence. Comparing Fig. 2 and Fig. 4, we can see that the central peak of Fig. 2 is narrower. Comparing Fig. 3 and Fig. 5, we can see that the main lobe of Fig. 3 is narrower and the side lobes are lower, indicating that the precoded OFDM radar communication integrated signal Shows better radar ambiguity performance.
图6是本发明实施例提供的包括探测性能验证的OFDM雷达通信一体化波 形处理方法的系统框架图。FIG. 6 is a system frame diagram of an OFDM radar communication integrated waveform processing method including detection performance verification provided by an embodiment of the present invention.
图7是本发明实施例提供的OFDM雷达通信一体化波形处理装置的结构示 意图，参见图7，该OFDM雷达通信一体化波形处理装置70可以包括：FIG. 7 is a schematic structural diagram of an OFDM radar communication integrated waveform processing device provided by an embodiment of the present invention. Referring to FIG. 7 , the OFDM radar communication integrated
信息获取模块71，用于获取通信信息数据；an
序列生成模块72，用于生成Kasami序列；
预编码模块73，用于通过所述Kasami序列对所述通信信息数据进行预编 码；A
调制模块74，用于将预编码后的通信信息数据调制至子载波上。The
一些实施例中，所述生成Kasami序列，可以包括：通过r位移位寄存器 生成周期为k的m序列族；其中，k＝2r-1；对所述m序列族进行本征取样，获 得多个周期为k的m序列；基于所述多个周期为k的m序列，生成m序列优 选对；基于所述m序列优选对生成Kasami序列族，并选取Kasami序列族中的 一组作为所述Kasami序列；其中，所述Kasami序列的位数为N，N＝2r-1。In some embodiments, the generating the Kasami sequence may include: generating an m sequence family with a period of k through an r bit shift register; where k=2r −1; performing intrinsic sampling on the m sequence family to obtain Multiple m sequences with period k; based on the multiple m sequences with period k, generate a preferred pair of m sequences; generate a Kasami sequence family based on the m sequence preferred pairs, and select a group in the Kasami sequence family as the The Kasami sequence; wherein, the number of digits of the Kasami sequence is N, and N=2r -1.
一些实施例中，所述对所述m序列族进行本征取样，获得多个周期为k的 m序列，可以包括：通过奇数为q的本征取样获得所有周期为k的m序列；其 中，q满足gcd(k,q)＝1，且q<k；去除所述所有周期为k的m序列中不同相位的 同一m序列，获得所述多个周期为k的m序列。In some embodiments, performing intrinsic sampling on the m-sequence family to obtain multiple m-sequences with a period of k may include: obtaining all m-sequences with a period of k through intrinsic sampling with an odd number of q; wherein, q satisfies gcd(k, q)=1, and q<k; remove the same m-sequences with different phases in all the m-sequences with period k to obtain the multiple m-sequences with period k.
一些实施例中，所述通过所述Kasami序列对所述通信信息数据进行预编码， 可以包括：将所述通信信息数据的每一位扩展为N位；将所述Kasami序列循 环l次后与扩展后的通信信息数据进行点乘运算，获得预编码后的通信信息数 据；其中，l为所述通信信息数据的位数，所述预编码后的通信信息数据的数据 位数为l*N。In some embodiments, the precoding of the communication information data by using the Kasami sequence may include: expanding each bit of the communication information data into N bits; repeating the Kasami sequence for 1 times with The expanded communication information data is subjected to a dot product operation to obtain precoded communication information data; wherein, 1 is the number of bits of the communication information data, and the number of data bits of the precoded communication information data is 1*N .
一些实施例中，在所述将预编码后的通信信息数据调制至子载波上之前， 所述调制模块还可以用于：通过16QAM调制将所述预编码后的通信信息数据 映射为信息调制信号，并通过串并转换将所述信息调制信号转换为多路并行信 号；其中，所述多路并行信号的路数与所述子载波的个数相同；对所述多路并 行信号进行IFFT变换；相应的，所述将预编码后的通信信息数据调制至子载波 上，包括：将进行IFFT变换后的多路并行信号调制至子载波上，获得并行数据 流；通过并串转换将所述并行数据流换转换为串行数据流。In some embodiments, before modulating the precoded communication information data onto the subcarriers, the modulation module may be further configured to: map the precoded communication information data into an information modulation signal by 16QAM modulation , and convert the information modulated signal into a multi-channel parallel signal through serial-parallel conversion; wherein, the number of the multi-channel parallel signal is the same as the number of the sub-carriers; IFFT transformation is performed on the multi-channel parallel signal Correspondingly, modulating the precoded communication information data on the sub-carrier includes: modulating the multi-channel parallel signal after IFFT transformation on the sub-carrier to obtain a parallel data stream; The parallel data stream is converted into a serial data stream.
一些实施例中，在所述将预编码后的通信信息数据调制至子载波上，获得 并行数据流之后，所述调制模块还可以用于：对所述并行数据流增加循环前缀； 相应的，所述通过并串转换将所述并行数据流换转换为串行数据流，包括：通 过并串转换将增加循环前缀后的并行数据流转换为串行数据流。In some embodiments, after the precoded communication information data is modulated onto the sub-carriers to obtain a parallel data stream, the modulation module may further be configured to: add a cyclic prefix to the parallel data stream; correspondingly, The converting the parallel data stream into a serial data stream by parallel-serial conversion includes: converting the parallel data stream after adding a cyclic prefix into a serial data stream by parallel-serial conversion.
一些实施例中，在所述将预编码后的通信信息数据调制至子载波上之后， 所述调制模块还可以用于：通过数模转换将调制至子载波上之后生成的信号转 换为模拟信号；通过上变频将所述模拟信号变换至高频载波上。In some embodiments, after the precoded communication information data is modulated onto the subcarrier, the modulation module may be further configured to: convert the signal generated after being modulated onto the subcarrier into an analog signal through digital-to-analog conversion. ; Convert the analog signal to a high frequency carrier through up-conversion.
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上 述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上 述功能分配由不同的功能单元、模块完成，即将所述OFDM雷达通信一体化波 形处理装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部 或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也 可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中， 上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式 实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程，可以参考 前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. The module is completed, that is, the internal structure of the OFDM radar communication integrated waveform processing device is divided into different functional units or modules, so as to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit, and the above-mentioned integrated unit may adopt hardware. It can also be realized in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application. For the specific working process of the units and modules in the above-mentioned system, reference may be made to the corresponding process in the foregoing method embodiments, which will not be repeated here.
图8本发明一实施例提供的终端设备的示意图。如图8所示，在本实施例 中，终端设备80包括：处理器81、存储器82以及存储在所述存储器82中并 可在所述处理器81上运行的计算机程序83。所述处理器81执行所述计算机程 序83时实现如实施例第一方面中所述的各实施例中的步骤，例如图1所示的步 骤S101至S104。或者，所述处理器81执行所述计算机程序83时实现上述OFDM 雷达通信一体化波形处理装置实施例中各模块/单元的功能，例如图7所示模块 71至74的功能。FIG. 8 is a schematic diagram of a terminal device provided by an embodiment of the present invention. As shown in FIG. 8 , in this embodiment, the
示例性地，所述计算机程序83可以被分割成一个或多个模块/单元，所述 一个或者多个模块/单元被存储在所述存储器82中，并由所述处理器81执行， 以完成本申请。所述一个或多个模块/单元可以是能够完成特定功能的一系列计 算机程序指令段，该指令段用于描述所述计算机程序83在所述终端设备80中 的执行过程。Exemplarily, the
所述终端设备可以是手机、平板电脑等计算设备。所述终端设备可包括， 但不仅限于，处理器81、存储器82。本领域技术人员可以理解，图8仅仅是终 端设备80的示例，并不构成对终端设备80的限定，可以包括比图示更多或更 少的部件，或者组合某些部件，或者不同的部件，例如所述终端设备80还可以 包括输入输出设备、网络接入设备、总线等。The terminal device may be a computing device such as a mobile phone and a tablet computer. The terminal device may include, but is not limited to, the
所称处理器81可以是中央处理单元(Central Processing Unit，CPU)，还可 以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用 集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列 (Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或 者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理 器也可以是任何常规的处理器等。The so-called
所述存储器82可以是所述终端设备80的内部存储单元，例如终端设备80 的硬盘或内存。所述存储器82也可以是所述终端设备80的外部存储设备，例 如所述终端设备80上配备的插接式硬盘，智能存储卡(Smart Media Card,SMC)， 安全数字(Secure Digital,SD)卡，闪存卡(Flash Card)等。进一步地，所述 存储器82还可以既包括所述终端设备80的内部存储单元也包括外部存储设备。 所述存储器82用于存储所述计算机程序83以及所述终端设备80所需的其他程 序和数据。所述存储器82还可以用于暂时地存储已经输出或者将要输出的数据。The
本发明实施例还提供了一种计算机可读存储介质，计算机可读存储介质存 储有计算机程序，计算机程序被处理器执行时实现如实施例第一方面所述的各 实施例中的步骤，例如图1所示的步骤S101至步骤S104。Embodiments of the present invention further provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in each embodiment described in the first aspect of the embodiment are implemented, for example, Steps S101 to S104 shown in FIG. 1 .
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详 述或记载的部分，可以参见其它实施例的相关描述。In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示 例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来 实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用 和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现 所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
在本申请所提供的实施例中，应该理解到，所揭露的OFDM雷达通信一体 化波形处理方法、装置及终端设备，可以通过其它的方式实现。例如，以上所 描述的OFDM雷达通信一体化波形处理装置实施例仅仅是示意性的，例如，所 述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划 分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特 征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合 或通讯连接可以是通过一些接口，装置或单元的间接耦合或通讯连接，可以是 电性，机械或其它的形式。In the embodiments provided in this application, it should be understood that the disclosed integrated waveform processing method, device and terminal device for OFDM radar communication can be implemented in other ways. For example, the above-described embodiments of the OFDM radar communication integrated waveform processing apparatus are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为 单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部 单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中， 也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的 形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, and can also be implemented in the form of software functional units.
所述集成的模块/单元如果以软件功能单元的形式实现并作为独立的产品 销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解， 本申请实现上述实施例方法中的全部或部分流程，也可以通过计算机程序来指 令相关的硬件来完成，所述的计算机程序可存储于一计算机可读存储介质中， 该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中， 所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、 对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质可以包括： 能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、 磁碟、光盘、计算机存储器、只读存储器(ROM，Read-Only Memory)、随机 存取存储器(RAM，Random Access Memory)、电载波信号、电信信号以及软 件分发介质等。需要说明的是，所述计算机可读介质包含的内容可以根据司法 管辖区内立法和专利实践的要求进行适当的增减，例如在某些司法管辖区，根 据立法和专利实践，计算机可读介质不包括是电载波信号和电信信号。The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer-readable storage medium. Based on this understanding, the present application can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer When the program is executed by the processor, the steps of the foregoing method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer-readable media Excluded are electrical carrier signals and telecommunication signals.
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照 前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其 依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特 征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申 请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that: it can still be used for the above-mentioned implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the application, and should be included in the within the scope of protection of this application.
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