CN114070429A - Method for combining radio frequency internal and external correction and computer storage medium - Google Patents

Abstract

The invention relates to the technical field of electronics, and discloses a method for combining radio frequency internal and external correction and a computer storage medium. Before the radio frequency system is assembled in a placement environment, the radio frequency system is connected with each subsystem through special radio frequency cables with equal length to carry out external correction, then after the radio frequency system is assembled in the placement environment, internal correction is carried out, and finally, the external correction and the internal correction are combined. The method provided by the invention can enable the radio frequency system to adapt to any complex assembly environment, and the method can ensure the authenticity of the corrected value after the system replaces parts through an internal and external correction mode, thereby providing reliable guarantee for the radio frequency system to accurately receive the direction finding of the external radiation source for a long time.

Description

Method for combining radio frequency internal and external correction and computer storage medium

Technical Field

The invention relates to the technical field of electronics, in particular to a method for combining radio frequency internal and external correction and a computer storage medium.

Background

In the prior art, the whole radio frequency system is divided into a plurality of independent sub-systems to be placed at any position due to the limitation of placing environments, wherein the lengths of radio frequency connecting cables are different, some channels inside radio frequency channels need precise radio frequency signal amplitude correction, and direction-finding indexes are possibly out of tolerance after the large system is integrated due to the fact that the lengths of the radio frequency connecting cables among the sub-systems are different. The difference between the amplitude of the radio frequency signal and the amplitude of the previous system is too large when the radio frequency connecting cable is repaired and replaced, and the difference between the amplitude of the radio frequency signal and the amplitude of the previous system is too large when the radio frequency channel in the subsystem is repaired and replaced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the existing problems, the invention provides a method for combining radio frequency internal and external correction and a computer storage medium.

The technical scheme adopted by the invention is as follows:

in one aspect, the present invention provides a method for combining radio frequency internal and external calibration, comprising:

(1) external correction: before the radio frequency system is assembled in a placement environment, connecting each subsystem in the radio frequency system by using special radio frequency cables with equal length, performing external correction to obtain an external correction amplitude value table of each frequency of each radio frequency channel, recording the external correction amplitude value table as an external correction configuration file, storing the external correction configuration file into a system computer board for operation, and obtaining an external correction fitting curve chart of each radio frequency channel;

(2) internal correction: after the radio frequency system is assembled in a placement environment, performing internal correction to obtain an internal correction amplitude value table of each frequency of each radio frequency channel, recording the internal correction amplitude value table as a first internal correction configuration file, storing the internal correction configuration file into a system computer board for operation and use, and obtaining a first internal correction fitting curve graph of each radio frequency channel;

(3) and (3) internal and external correction combination: carrying out balanced fitting on the external correction configuration file and the first internal correction configuration file to obtain an actual application configuration file, and storing the actual application configuration file into a system computer board for running and using to obtain a correction curve graph;

(4) and (3) combining internal and external correction after replacing parts:

(a1) when the radio frequency cable or the radio frequency channel part has a problem, the radio frequency cable or the radio frequency channel part needing to be replaced is replaced into the radio frequency system for internal correction, an amplitude value table of each frequency of each replaced radio frequency channel is obtained and recorded as a second internal correction configuration file, and the second internal correction configuration file is stored into a computer board of the system for operation and use, so that a second internal correction fitting curve graph of each radio frequency channel is obtained;

(a2) carrying out balanced fitting on the external correction configuration file and the second internal correction configuration file to obtain a replacement application configuration file, and storing the replacement application configuration file into a system computer board for running and using to obtain a replacement curve chart;

(a3) and comparing the replacement curve graph with the correction curve graph to obtain an error between the replacement curve graph and the correction curve graph, if the error is within the radio frequency amplitude consistency index range of the radio frequency cable or the radio frequency channel part, determining that the replaced radio frequency cable or the radio frequency channel part meets the requirement, otherwise, replacing the radio frequency cable or the radio frequency channel part again until the error is within the radio frequency amplitude consistency index range of the radio frequency cable or the radio frequency channel part.

Further, the specific step of performing a balanced fitting on the external correction configuration file and the internal correction configuration file to obtain the actual application configuration file includes:

extracting the external correction configuration file and the first internal correction configuration file into a debugging computer, finding out corresponding external correction amplitude values and first internal correction amplitude values under the same frequency in the external correction configuration file and the first internal correction configuration file, performing balanced fitting calculation by integrating the external correction weight coefficients and the internal correction weight coefficients to obtain an actual application amplitude value table, and recording the actual application amplitude value table as an actual application configuration file.

Further, the step of performing a balanced fitting on the external calibration configuration file and the second internal calibration configuration file to obtain a replacement application configuration file includes:

and extracting the external correction configuration file and the second internal correction configuration file into a debugging computer, finding out corresponding external correction amplitude values and second internal correction amplitude values under the same frequency in the external correction configuration file and the second internal correction configuration file, performing balanced fitting calculation by integrating the external correction weight coefficients and the internal correction weight coefficients to obtain a replacement application amplitude value table, and recording the table as the replacement application configuration file.

Further, the equation for the equilibrium fit calculation is: (Q1 + Q2 + PAn)/2; wherein PAm is an inner correction amplitude value at the same frequency, PAn is an outer correction amplitude value at the same frequency, Q1 is an outer correction weight coefficient, Q2 is an inner correction weight coefficient, Q1 and Q2 are both less than 1, and Q1+ Q2 is 1.

Further, in order to facilitate a later failure analysis of the radio frequency system, the step (a1) further includes:

and testing the radio frequency amplitude of each frequency of the old radio frequency cable to be replaced and the new radio frequency cable to be replaced with the radio frequency system, recording the radio frequency amplitude value PAh of each frequency of the old radio frequency cable and the radio frequency amplitude value PAx of each frequency of the new radio frequency cable, calculating the difference value between the radio frequency amplitude value PAh of each frequency of the old radio frequency cable and the radio frequency amplitude value PAx of each frequency of the new radio frequency cable, and using the difference value for fault analysis of the radio frequency system.

In a second aspect, the present invention also provides a computer storage medium having stored thereon computer instructions which, when run on a computer, cause the computer to perform the method of the first aspect.

Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows:

the whole radio frequency system is connected with each subsystem through the special radio frequency cables with equal length for external correction before being assembled in the placing environment, the system is internally corrected after being assembled in the placing environment, the corrected value after any component in the whole system is maintained and replaced is ensured to be real and credible in a mode of combining calculation of the external correction and the internal correction, and the radio frequency system is ensured to accurately measure the direction of an external radiation source for a long time.

Drawings

Fig. 1 is a schematic flow chart of a method for combining radio frequency internal and external calibration according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of an external calibration placement for a radio frequency system.

Figure 3 is a schematic diagram of a calibration placement within a radio frequency system.

Fig. 4 is an outer correction fit graph.

Fig. 5 is a first internal correction fit plot.

Fig. 6 is a correction graph.

FIG. 7 is a second inner correction fit plot.

Fig. 8 is a replacement graph.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment provides a method for combining internal and external rf calibration, which includes:

(1) external correction: before the radio frequency system is assembled in a placement environment, the sub-systems in the radio frequency system are connected by using special radio frequency cables with equal length, external correction is carried out, an external correction amplitude value table of each frequency of each radio frequency channel is obtained, as shown in table 1, recorded as an external correction configuration file and stored in a system computer board for operation, and an external correction fitting curve graph of each radio frequency channel is obtained, as shown in fig. 4.

TABLE 1 external correction test recording sheet

(2) Internal correction: after the radio frequency system is assembled in the placement environment, internal correction is performed to obtain an internal correction amplitude value table of each frequency of each radio frequency channel, the internal correction amplitude value table is recorded as a first internal correction configuration file and stored in a system computer board for operation, and a first internal correction fitting curve graph of each radio frequency channel is obtained, as shown in fig. 5.

(3) And (3) internal and external correction combination: and performing balanced fitting on the external correction configuration file and the first internal correction configuration file to obtain an actual application configuration file, storing the actual application configuration file into a system computer board for operation, and obtaining a correction curve chart, as shown in fig. 6.

Specifically, in this embodiment, the specific process of the equilibrium fitting is as follows:

extracting the external correction configuration file and the first internal correction configuration file to a debugging computer, finding out corresponding external correction amplitude values PAn and first internal correction amplitude values PAm at the same frequency in the external correction configuration file and the first internal correction configuration file, and performing balanced fitting calculation by integrating an external correction weight coefficient Q1 and an internal correction weight coefficient Q2, wherein the calculation mode is as follows: (Q1 × PAm + Q2 × PAn)/2, where Q1+ Q2 ═ 1(Q1, Q2 are both less than 1), the table of the actual application amplitude values is obtained, and recorded as the actual application profile, as shown in table 2.

TABLE 2 amplitude table for practical application

The present embodiment also provides a computer storage medium, where computer instructions are stored, and when the computer instructions are executed on a computer, the computer is caused to execute a method for combining radio frequency internal and external calibration provided in the present embodiment.

Example 2

This embodiment is further supplemented on the basis ofembodiment 1, and specifically as follows:

the embodiment provides a method for combining radio frequency internal and external correction, which further includes, based on the method for combining radio frequency internal and external correction provided in embodiment 1:

(4) and (3) combining internal and external correction after replacing parts:

(a1) when a radio frequency cable or a radio frequency channel part has a problem, the radio frequency cable or the radio frequency channel part to be replaced is replaced into a radio frequency system for internal correction, an amplitude value table of each frequency of each replaced radio frequency channel is obtained and recorded as a second internal correction configuration file, and the second internal correction fitting curve graph of each radio frequency channel is obtained by storing the second internal correction configuration file into a system computer board for operation and use, as shown in fig. 7;

(a2) performing balanced fitting on the external correction configuration file and the second internal correction configuration file to obtain a replacement application configuration file, storing the replacement application configuration file into a system computer board for operation, and obtaining a replacement curve chart, as shown in fig. 8;

(a3) and comparing the replacement curve graph (figure 8) with a correction curve graph (figure 6) obtained by combining internal and external correction to obtain an error K between the replacement curve graph and the correction curve graph, if the error K is positioned in the radio frequency amplitude consistency index range of the radio frequency cable or the radio frequency channel part, determining that the replaced radio frequency cable or the radio frequency channel part meets the requirement, otherwise, replacing the radio frequency cable or the radio frequency channel part again until the error K is positioned in the radio frequency amplitude consistency index range of the radio frequency cable or the radio frequency channel part.

In addition, in order to facilitate later-stage radio frequency system fault analysis, when a radio frequency cable is replaced, an old radio frequency cable to be replaced and a new radio frequency cable to be replaced with the radio frequency system are subjected to various frequency radio frequency amplitude tests, various frequency radio frequency amplitude values PAh of the old radio frequency cable and various frequency radio frequency amplitude values PAx of the new radio frequency cable are recorded, a difference value between various frequency radio frequency amplitude values PAh of the old radio frequency cable and various frequency radio frequency amplitude values Pax of the new radio frequency cable is calculated, and the difference value is used for fault analysis of the radio frequency system.

It should be noted that, in the present invention, the terms "first" and "second" are used only for distinguishing the description, and are not intended to indicate or imply other meanings such as relative importance.

The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.

Claims (7)

1. A method for combining radio frequency internal and external calibration, comprising:

(1) external correction: before the radio frequency system is assembled in a placement environment, connecting each subsystem in the radio frequency system by using special radio frequency cables with equal length, performing external correction to obtain an external correction amplitude value table of each frequency of each radio frequency channel, recording the external correction amplitude value table as an external correction configuration file, storing the external correction configuration file into a system computer board for operation, and obtaining an external correction fitting curve chart of each radio frequency channel;

(2) internal correction: after the radio frequency system is assembled in a placement environment, performing internal correction to obtain an internal correction amplitude value table of each frequency of each radio frequency channel, recording the internal correction amplitude value table as a first internal correction configuration file, storing the internal correction configuration file into a system computer board for operation and use, and obtaining a first internal correction fitting curve graph of each radio frequency channel;

(3) and (3) internal and external correction combination: and carrying out balanced fitting on the external correction configuration file and the first internal correction configuration file to obtain an actual application configuration file, and storing the actual application configuration file into a system computer board for operation to obtain a correction curve graph.

2. The method of claim 1, further comprising:

(4) and (3) combining internal and external correction after replacing parts:

(a1) when the radio frequency cable or the radio frequency channel part has a problem, the radio frequency cable or the radio frequency channel part needing to be replaced is replaced into the radio frequency system for internal correction, an amplitude value table of each frequency of each replaced radio frequency channel is obtained and recorded as a second internal correction configuration file, and the second internal correction configuration file is stored into a computer board of the system for operation and use, so that a second internal correction fitting curve graph of each radio frequency channel is obtained;

(a2) carrying out balanced fitting on the external correction configuration file and the second internal correction configuration file to obtain a replacement application configuration file, and storing the replacement application configuration file into a system computer board for running and using to obtain a replacement curve chart;

(a3) and comparing the replacement curve graph with the correction curve graph to obtain an error between the replacement curve graph and the correction curve graph, if the error is within the radio frequency amplitude consistency index range of the radio frequency cable or the radio frequency channel part, determining that the replaced radio frequency cable or the radio frequency channel part meets the requirement, otherwise, replacing the radio frequency cable or the radio frequency channel part again until the error is within the radio frequency amplitude consistency index range of the radio frequency cable or the radio frequency channel part.

3. The method according to claim 1, wherein the step of performing a balanced fit between the outer calibration configuration file and the inner calibration configuration file to obtain the actual application configuration file comprises:

extracting the external correction configuration file and the first internal correction configuration file into a debugging computer, finding out corresponding external correction amplitude values and first internal correction amplitude values under the same frequency in the external correction configuration file and the first internal correction configuration file, performing balanced fitting calculation by integrating the external correction weight coefficients and the internal correction weight coefficients to obtain an actual application amplitude value table, and recording the actual application amplitude value table as an actual application configuration file.

4. The method of claim 2, wherein the step of performing a balanced fit between the outer calibration profile and the second inner calibration profile to obtain the replacement application profile comprises:

and extracting the external correction configuration file and the second internal correction configuration file into a debugging computer, finding out corresponding external correction amplitude values and second internal correction amplitude values under the same frequency in the external correction configuration file and the second internal correction configuration file, performing balanced fitting calculation by integrating the external correction weight coefficients and the internal correction weight coefficients to obtain a replacement application amplitude value table, and recording the table as the replacement application configuration file.

5. A method according to claim 3 or 4, wherein the equation for the said equalisation fit calculation is: (Q1 + Q2 + PAn)/2; wherein PAm is an inner correction amplitude value at the same frequency, PAn is an outer correction amplitude value at the same frequency, Q1 is an outer correction weight coefficient, Q2 is an inner correction weight coefficient, Q1 and Q2 are both less than 1, and Q1+ Q2 is 1.

6. The method of claim 2, wherein the step (a1) further comprises:

and testing the radio frequency amplitude of each frequency of the old radio frequency cable to be replaced and the new radio frequency cable to be replaced with the radio frequency system, recording the radio frequency amplitude value PAh of each frequency of the old radio frequency cable and the radio frequency amplitude value PAx of each frequency of the new radio frequency cable, calculating the difference value between the radio frequency amplitude value PAh of each frequency of the old radio frequency cable and the radio frequency amplitude value PAx of each frequency of the new radio frequency cable, and using the difference value for fault analysis of the radio frequency system.

7. A computer storage medium having computer instructions stored thereon, which when executed on a computer, cause the computer to perform the method of any one of claims 1-6.

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