A software-driven navigation equipment anti-interference capability test and evaluation method

Abstract

The present application relates to a software-driven navigation device anti-interference capability test and evaluation method. The method configures the corresponding number of interference sources and the relative elevation relationship between the interference sources according to the antenna characteristics and type of the device under test, simulates the interference characteristics of each interference source on the device under test under different elevation angles and different angle intervals, and considers the attenuation of the interference signal during space transmission, repeatedly performs simulation tests on the anti-interference capability of the device under test and adjusts the interference power configuration according to the test results, drives each interference source to send interference signals according to the corresponding interference power value based on the simulation software, records the interference situation of the device under test to analyze the device anti-interference capability in real time, and obtains the real anti-interference capability of the device under test. The present method can comprehensively, quickly and accurately simulate the anti-interference capability of satellite navigation equipment.

Description

Technical Field

[0001] The present application relates to the field of satellite navigation simulation technology, and in particular to a software-driven navigation device anti-interference capability testing and evaluation method. Background Art

[0002] In recent years, satellite navigation jamming methods have become more and more advanced, the types of satellite navigation equipment have become more and more abundant, and the anti-interference ability of equipment has also been greatly improved. However, the anti-interference ability of existing equipment is only a nominal value, and its actual anti-interference ability can only be obtained through offline measurements. However, there are many factors that affect the anti-interference ability of satellite navigation equipment: there are many types of satellite navigation equipment, which can be divided into airborne equipment, ground equipment and shipborne equipment based on their geographical deployment locations; interference sources can also be divided into air interference, ground interference and sea surface interference; the number of interference sources ranges from single to multiple with a variety of combinations; the pitch relationship between the interference source and the navigation equipment; the horizontal layout of the interference source and the navigation equipment, etc. There are many influencing factors, which leads to huge manpower and material resources consumed in offline measurements, and it is not suitable for large-scale, long-term testing.

[0003] Existing technologies all focus on optimizing the anti-interference performance of navigation array receivers or evaluating the impact range of interference sources on navigation array receivers. The Chinese invention patent (application publication number: CN117630978A), the invention name is a satellite navigation super-freedom interference suppression method and device based on array element optimization, which improves the array receiver's ability to suppress distributed interference by selecting different array element sets, and is not suitable for equipment that has been produced. The Chinese invention patent application (application publication number: CN115618646A), the invention name is a method for evaluating the impact of different threat source layouts on satellite navigation array receivers, which only provides an evaluation method for the impact of threat source layouts on receivers, and does not consider the impact of the pitch relationship between the interference source and the equipment on the anti-interference ability.

[0004] To sum up, there is currently a lack of evaluation technology for the actual measured value of the anti-interference capability of existing satellite navigation equipment, and the physical measurement of satellite navigation equipment consumes a lot of resources. Therefore, there is an urgent need for an economical, convenient and fast test and evaluation method to test the anti-interference capability of existing navigation equipment. Summary of the invention

[0005] Based on this, it is necessary to provide a software-driven navigation equipment anti-interference capability test and evaluation method to address the above technical issues.

[0006] A software-driven navigation device anti-interference capability test and evaluation method, the method comprising:

[0007] S1. Determine the configuration quantity of interference sources according to the number of array elements of the device under test; wherein the device under test is a satellite navigation device;

[0008] S2. Determine the relative elevation relationship between each interference source and the device under test according to the type of the device under test;

[0009] S3. Calculate the initial interference power of each interference source according to the nominal value of the anti-interference capability of the device under test and the distance between each interference source and the device under test;

[0010] S4. Perform simulation calculation according to the initial interference power of each interference source to obtain the anti-interference capability of the device under test under the initial interference power;

[0011] S5. Generate interference source angle combinations with different horizontal layouts by setting a fixed angle interval, and traverse all interference source angle combinations to perform simulation calculations to obtain the anti-interference capability of the device under test under different interference source angle combinations;

[0012] S6. Screening the minimum anti-interference capability of the device under test under different interference source angle combinations, and obtaining the interference source angle combination corresponding to the minimum value;

[0013] S7, using simulation software to drive the antenna poles of each interference source, and adjusting the position distribution and pitch angle according to each angle in the interference source angle combination corresponding to the minimum anti-interference capability of the device under test;

[0014] S8, using simulation software to drive each interference source after adjusting the position and pitch angle, transmitting interference signals according to their corresponding initial interference powers, and analyzing the anti-interference capability of the device under test in real time by recording the interference signal data received by the device under test;

[0015] S9. According to the real-time anti-interference capability of the device under test, further adjust the interference power of each interference source and repeatedly use the simulation software to test the anti-interference capability of the device under test until the real anti-interference capability of the device under test is obtained.

[0016] In one embodiment, determining the number of interference sources to be configured according to the number of array elements of the device under test includes:

[0017] For an anti-interference device under test with multiple elements, multiple interference sources are configured; for a non-anti-interference device under test with a single antenna, a single interference source is configured.

[0018] In one embodiment, determining the relative elevation relationship between each interference source and the device under test according to the type of the device under test includes:

[0019] The equipment under test is divided into air targets, ground targets and sea targets according to their geographical location;

[0020] For aerial targets, consider the ground interference sources and determine that the interference angle between each ground interference source and the aerial target is a positive elevation angle;

[0021] For ground targets and sea targets, when considering ground interference sources or sea interference sources, the interference elevation angle between each interference source and the device under test is determined to be 0°; when considering aerial interference sources, the interference angle between each interference source and the device under test is determined to be a negative elevation angle.

[0022] In one embodiment, the calculation formula of the initial interference power of each interference source is:

[0023] ;

[0024] in, is the satellite navigation signal power received by the device under test, is the nominal value of the anti-interference capability of the device under test, is the initial interference power of the interference signal transmitted by each interference source, and are the transmitting antenna gain and the receiving antenna gain, respectively. is the attenuation of the interference signal in free space calculated based on the distance between each interference source and the device under test, is the atmospheric attenuation, For noise attenuation.

[0025] In one embodiment, the attenuation of the interference signal in free space is expressed as

[0026] ;

[0027] in, is the wavelength, Indicates the distance between the interference source and the device under test. is the carrier frequency.

[0028] In one embodiment, a simulation calculation is performed based on the initial interference power of each interference source to obtain the anti-interference capability of the device under test under the initial interference power, which is expressed as

[0029] ;

[0030] in, is the signal-to-noise ratio, is the interference plus noise covariance matrix, is the covariance matrix of the satellite navigation signal, is the spatial domain filter weight vector of the PI algorithm, PI stands for power inversion, express The conjugate transpose of .

[0031] In one embodiment, by setting a fixed angle interval, generating interference source angle combinations with different horizontal layouts, and traversing all interference source angle combinations for simulation calculation, the anti-interference capability of the device under test under different interference source angle combinations is obtained, including:

[0032] For a multi-element anti-interference device under test, multiple interference sources are configured and fixed angle intervals are set. The angle between each interference source and the multi-element anti-interference device under test is changed according to the fixed angle interval to generate interference source angle combinations with different horizontal layouts.

[0033] All interference source angle combinations are traversed, and simulation calculations are performed based on the initial interference power of each interference source to obtain the anti-interference capability of the multi-element anti-interference device under different interference source angle combinations.

[0034] In one embodiment, according to the real-time anti-interference capability of the device under test, the interference power of each interference source is further adjusted and the simulation software is repeatedly used to test the anti-interference capability of the device under test until the real anti-interference capability of the device under test is obtained, including:

[0035] Analyze the real-time interference situation of the device under test. If the device under test is not interfered with, increase the interference power of each interference source, and use simulation software to drive each interference source to send interference signals according to the increased interference power, and analyze the new interference situation of the device under test in real time; if the device under test is interfered with, reduce the interference power of each interference source, and use simulation software to drive each interference source to send interference signals according to the reduced interference power, and analyze the new interference situation of the device under test in real time;

[0036] By repeatedly adjusting the interference power value and repeatedly using the simulation software to drive each interference source to send an interference signal, a simulation test of the anti-interference ability of the device under test is performed until the real anti-interference ability of the device under test is obtained.

[0037] The above-mentioned software-driven navigation device anti-interference capability test and evaluation method solves the problem of how to quickly and accurately calculate the real anti-interference capability of satellite navigation equipment. The method configures the corresponding number of interference sources and the relative elevation relationship between the interference sources according to the antenna characteristics and type of the device under test, and simulates the interference characteristics of each interference source on the device under test under different elevation angles and different angle intervals, and considers the attenuation of the interference signal during space transmission. The anti-interference capability simulation test of the device under test is repeatedly performed and the interference power configuration is adjusted according to the test results. Based on the simulation software, each interference source is driven to send an interference signal according to the corresponding interference power value, and the interference situation of the device under test is recorded to analyze the device's anti-interference capability in real time, and obtain the real anti-interference capability of the device under test. The present application can realize a comprehensive, fast and accurate simulation of the measured values ​​of the anti-interference capability of a single-antenna or multi-element satellite navigation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A flowchart of a method for testing and evaluating the anti-interference capability of a navigation device based on software drive in an embodiment;

[0039] Figure 2 The figure is a flow chart of testing and evaluating the anti-interference capability of an anti-interference device with four elements in one embodiment. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] In one embodiment, Figure 1 As shown, a method for testing and evaluating the anti-interference capability of a navigation device based on software drive is provided, comprising the following steps:

[0042] S1. Determine the configuration quantity of interference sources according to the number of array elements of the device under test; wherein the device under test is a satellite navigation device.

[0043] Among them, for multi-element anti-interference devices under test, multiple interference sources are configured; for single-antenna non-anti-interference devices under test, a single interference source is configured. The current mainstream satellite navigation devices are usually divided into 4-element and 7-element anti-interference devices, and 3 and 6 interference sources can be selected respectively according to the device type. Specifically, the antenna array of the satellite navigation device receiver also includes redundant elements.

[0044] S2. Determine the relative elevation relationship between each interference source and the device under test according to the type of the device under test.

[0045] Among them, the equipment under test is divided into aerial targets, ground targets and sea targets according to their geographical locations. For aerial targets, ground interference sources are considered, and the interference angle between each ground interference source and the aerial target is determined to be a positive elevation angle, such as +15°, +10°, +5°, etc.; for ground targets and sea targets, when ground interference sources or sea interference sources are considered, the interference elevation angle between each interference source and the equipment under test is determined to be 0°; when aerial interference sources are considered, the interference angle between each interference source and the equipment under test is determined to be a negative elevation angle, such as -15°, -10°, -5°, etc.

[0046] S3. Calculate according to the nominal value of the anti-interference capability of the device under test and the distance between each interference source and the device under test to obtain the initial interference power of each interference source.

[0047] The calculation formula for the initial interference power of each interference source is:

[0048] ;

[0049] in, is the satellite navigation signal power received by the device under test, is the nominal value of the anti-interference capability of the device under test, is the initial interference power of the interference signal transmitted by each interference source, and are the transmitting antenna gain and the receiving antenna gain, respectively. is the attenuation of the interference signal in free space (in dB) calculated based on the distance between each interference source and the device under test. is the atmospheric attenuation, For noise attenuation.

[0050] Among them, the attenuation of the interference signal in free space is expressed as

[0051] ;

[0052] in, is the wavelength, It refers to the distance between the interference source and the device under test (in km). is the carrier frequency (in MHz).

[0053] S4. Perform simulation calculation based on the initial interference power of each interference source to obtain the anti-interference capability of the device under test under the initial interference power. The anti-interference capability of the device under test under the initial interference power can be calculated by the following formula:

[0054] ;

[0055] in, is the signal-to-noise ratio, is the interference plus noise covariance matrix, is the covariance matrix of the satellite navigation signal, is the spatial domain filter weight vector of the PI algorithm, PI stands for power inversion, express The conjugate transpose of .

[0056] S5. By setting a fixed angle interval, generating interference source angle combinations with different horizontal layouts, and traversing all interference source angle combinations to perform simulation calculations, the anti-interference capability of the device under test under different interference source angle combinations is obtained.

[0057] For the multi-element anti-interference device under test, multiple interference sources are configured and fixed angle intervals are set. The angle between each interference source and the multi-element anti-interference device under test is changed according to the fixed angle interval to generate interference source angle combinations with different horizontal layouts; all interference source angle combinations are traversed, and simulation calculations are performed based on the initial interference power of each interference source to obtain the anti-interference capability of the multi-element anti-interference device under different interference source angle combinations.

[0058] It can be understood that in steps S1-S5, the accuracy and reliability of the anti-interference ability test and evaluation of the satellite navigation equipment are improved by comprehensively considering many factors that affect the anti-interference ability of the satellite navigation equipment. Specifically, these factors include considering the type of device under test, the number and type of interference sources, the relative pitch relationship between the interference source and the device under test, the horizontal layout of the interference source and the device under test, and the attenuation of the interference signal in free space. Through the comprehensive analysis of these factors, the interference environment can be simulated more accurately, so that the anti-interference performance of the device under test under different interference conditions can be accurately evaluated, and a basis for optimizing the anti-interference strategy can be provided.

[0059] S6. Filter the minimum anti-interference capability of the device under test under different interference source angle combinations, and obtain the interference source angle combination corresponding to the minimum value.

[0060] S7. Use simulation software to drive the antenna poles of each interference source, and adjust the position distribution and pitch angle accordingly according to each angle in the interference source angle combination corresponding to the minimum anti-interference capability of the device under test.

[0061] S8. Use simulation software to drive each interference source after adjusting the position and pitch angle, transmit interference signals according to their corresponding initial interference powers, and analyze the anti-interference ability of the device under test in real time by recording the interference signal data received by the device under test.

[0062] S9. According to the real-time anti-interference capability of the device under test, further adjust the interference power of each interference source and repeatedly use the simulation software to test the anti-interference capability of the device under test until the real anti-interference capability of the device under test is obtained.

[0063] Among them, the real-time interference situation of the device under test is analyzed. If the device under test is not interfered with, the interference power of each interference source is increased, and the simulation software is used to drive each interference source to send interference signals according to the increased interference power, and the new interference situation of the device under test is analyzed in real time; if the device under test is interfered with, the interference power of each interference source is reduced, and the simulation software is used to drive each interference source to send interference signals according to the reduced interference power, and the new interference situation of the device under test is analyzed in real time; by repeatedly adjusting the interference power value and repeatedly using the simulation software to drive each interference source to send interference signals, a simulation test of the anti-interference ability of the device under test is performed until the real anti-interference ability of the device under test is obtained.

[0064] like Figure 2 As shown, taking a 4-element anti-interference device as an example, the software-driven navigation device anti-interference capability test and evaluation method provided in this application is further described, which specifically includes the following implementation steps:

[0065] (1) Determine the number of interference sources to be configured according to the number of array elements of the device under test. In this embodiment, a 4-element device under test with a resistance of 70 dB is selected, and the number of interference sources is determined to be 3.

[0066] (2) According to the type of the device under test, determine the relative elevation relationship between each interference source and the device under test. In this embodiment, the device under test and the ground interference source are selected, so the interference elevation angle is determined to be 0°.

[0067] (3) Calculate the initial interference power of each interference source based on the nominal value of the anti-interference capability of the device under test and the distance between each interference source and the device under test.

[0068] Specifically, the calculation steps of the initial interference power of the three interference sources are as follows:

[0069] Configure the location point (x, y, z) of the device under test and the nominal value of the anti-interference capability of the device under test is 70dB, and the distances from the three interference sources to the device under test are ;

[0070] Parameters required to calculate interference power: The power of the satellite navigation signal received by the device under test (value -130dB), the initial interference power of the interference signal emitted by the three interference sources , transmitting antenna gain (value 0), receiving antenna gain (value 0), the attenuation of the interference signal in free space calculated based on the distance between each interference source and the device under test , atmospheric attenuation (value 2dB), noise attenuation (value 1dB), carrier frequency ; Through the following formula:

[0071] ;

[0072] in The calculation formula is:

[0073] ;

[0074] From this we can calculate .

[0075] (4) Perform simulation calculation based on the initial interference power of each interference source to obtain the anti-interference capability of the device under test under the initial interference power.

[0076] Specifically, according to Calculate and obtain the anti-interference capability of the device under test under the initial interference power of three interference sources. is the interference plus noise covariance matrix, is the covariance matrix of the satellite navigation signal, is the spatial domain filter weight vector of the PI algorithm, express The conjugate transpose of .

[0077] (5) By setting a fixed angle interval, different horizontal layouts of interference source angle combinations are generated, and all interference source angle combinations are traversed for simulation calculation to obtain the anti-interference capability of the device under test under different interference source angle combinations.

[0078] Specifically, in this embodiment, a 4-element anti-interference device is selected and configured with 3 interference sources, and the selected angle interval is 5°, that is, the horizontal layout combination of each interference source is set at an interval of 5°. Therefore, the traversable interference source angle combinations are (5°, 5°, 350°), (5°, 5°, 345°), (5°, 10°, 350°), (5°, 10°, 345°), ..., (350°, 5°, 5°), etc., a total of n combinations.

[0079] (6) Filter the minimum anti-interference capability of the device under test under different interference source angle combinations, and obtain the interference source angle combination corresponding to the minimum value. In this embodiment, the interference source angle combination corresponding to the minimum anti-interference capability is selected as (5°, 5°, 350°).

[0080] (7) Use simulation software to drive the antenna poles of each interference source, and adjust the position distribution and pitch angle according to each angle in the interference source angle combination corresponding to the minimum anti-interference capability of the device under test.

[0081] Specifically, simulation software is used to adjust the antenna pole of interference source 1 to 5° clockwise from the device under test, the antenna pole of interference source 2 is adjusted to 5° clockwise from the device under test, and the antenna pole of interference source 3 is adjusted to 350° clockwise from the device under test.

[0082] (8) Use simulation software to drive each interference source after adjusting the position and pitch angle, transmit interference signals according to their corresponding initial interference power, and analyze the anti-interference ability of the device under test in real time by recording the interference signal data received by the device under test.

[0083] Specifically, after adjusting the position of the antenna pole, the three interference sources transmit interference signals according to the initial interference power calculated in step (3), and at the same time record the interference signal data received by the device under test, and analyze the anti-interference ability of the device under test in real time.

[0084] (9) According to the real-time anti-interference capability of the device under test, further adjust the interference power of each interference source and repeatedly use the simulation software to test the anti-interference capability of the device under test until the real anti-interference capability of the device under test is obtained.

[0085] Specifically, according to the data recorded in step (8), the real-time interference situation of the device under test is analyzed. If the interference is successfully suppressed and the device under test is not interfered with, the interference power of each interference source is increased, and the simulation software is used to drive each interference source to send interference signals according to the increased interference power, and the new interference situation of the device under test is analyzed in real time; if the interference suppression fails and the device under test is interfered with, the interference power of each interference source is reduced, and the simulation software is used to drive each interference source to send interference signals according to the reduced interference power, and the new interference situation of the device under test is analyzed in real time; by repeatedly adjusting the interference power value and repeatedly using the simulation software to drive each interference source to send interference signals, the anti-interference ability of the device under test is simulated and tested until the real anti-interference ability of the device under test is obtained.

[0086] It should be understood that although Figure 1 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0087] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A software-driven navigation device anti-interference capability test and evaluation method, characterized in that: The method comprises: S1. Determine the configuration quantity of interference sources according to the number of array elements of the device under test; wherein the device under test is a satellite navigation device; S2. Determine the relative elevation relationship between each interference source and the device under test according to the type of the device under test; S3. Calculate the initial interference power of each interference source according to the nominal value of the anti-interference capability of the device under test and the distance between each interference source and the device under test; S4. Perform simulation calculation according to the initial interference power of each interference source to obtain the anti-interference capability of the device under test under the initial interference power; S5. Generate interference source angle combinations with different horizontal layouts by setting a fixed angle interval, and traverse all interference source angle combinations to perform simulation calculations to obtain the anti-interference capability of the device under test under different interference source angle combinations; S6. Screening the minimum anti-interference capability of the device under test under different interference source angle combinations, and obtaining the interference source angle combination corresponding to the minimum value; S7, using simulation software to drive the antenna poles of each interference source, and adjusting the position distribution and pitch angle according to each angle in the interference source angle combination corresponding to the minimum anti-interference capability of the device under test; S8, using simulation software to drive each interference source after adjusting the position and pitch angle, transmitting interference signals according to their corresponding initial interference powers, and analyzing the anti-interference capability of the device under test in real time by recording the interference signal data received by the device under test; S9. According to the real-time anti-interference capability of the device under test, further adjust the interference power of each interference source and repeatedly use the simulation software to test the anti-interference capability of the device under test until the real anti-interference capability of the device under test is obtained.

2. The method according to claim 1, characterized in that The number of interference sources to be configured is determined according to the number of array elements of the device under test, including: for an anti-interference device under test with multiple array elements, multiple interference sources are configured; for a non-anti-interference device under test with a single antenna, a single interference source is configured.

3. The method according to claim 1, characterized in that According to the type of the device under test, the relative pitch relationship between each interference source and the device under test is determined, including: the device under test is divided into an aerial target, a ground target and a sea target according to its geographical location; for the aerial target, the ground interference source is considered, and the interference angle between each ground interference source and the aerial target is determined to be a positive elevation angle; for the ground target and the sea target, when the ground interference source or the sea interference source is considered, the interference elevation angle between each interference source and the device under test is determined to be 0°; when the aerial interference source is considered, the interference angle between each interference source and the device under test is determined to be a negative elevation angle.

4. The method according to claim 1, characterized in that The calculation formula for the initial interference power of each interference source is: ； in, is the satellite navigation signal power received by the device under test, is the nominal value of the anti-interference capability of the device under test, is the initial interference power of the interference signal transmitted by each interference source, and are the transmitting antenna gain and the receiving antenna gain, respectively. is the attenuation of the interference signal in free space calculated based on the distance between each interference source and the device under test, is the atmospheric attenuation, For noise attenuation.

5. The method according to claim 4, characterized in that The attenuation of the interference signal in free space is expressed as ； in, is the wavelength, Indicates the distance between the interference source and the device under test. is the carrier frequency.

6. The method according to claim 1, characterized in that According to the initial interference power of each interference source, the anti-interference capability of the device under test under the initial interference power is obtained, which is expressed as ； in, is the signal-to-noise ratio, is the interference plus noise covariance matrix, is the covariance matrix of the satellite navigation signal, is the spatial domain filter weight vector of the PI algorithm, PI stands for power inversion, express The conjugate transpose of .

7. The method according to claim 1, characterized in that By setting a fixed angle interval, generating interference source angle combinations with different horizontal layouts, and traversing all interference source angle combinations for simulation calculation, the anti-interference capability of the device under test under different interference source angle combinations is obtained, including: For a multi-element anti-interference device under test, multiple interference sources are configured and fixed angle intervals are set, and the angle between each interference source and the multi-element anti-interference device under test is changed according to the fixed angle interval to generate interference source angle combinations with different horizontal layouts; All interference source angle combinations are traversed, and simulation calculation is performed according to the initial interference power of each interference source to obtain the anti-interference capability of the multi-element anti-interference tested device under different interference source angle combinations.

8. The method according to claim 1, characterized in that According to the real-time anti-interference capability of the device under test, further adjust the interference power of each interference source and repeatedly use the simulation software to test the anti-interference capability of the device under test until the real anti-interference capability of the device under test is obtained, including: Analyze the real-time interference situation of the device under test. If the device under test is not interfered with, increase the interference power of each interference source, and use simulation software to drive each interference source to send interference signals according to the increased interference power, and analyze the new interference situation of the device under test in real time; if the device under test is interfered with, reduce the interference power of each interference source, and use simulation software to drive each interference source to send interference signals according to the reduced interference power, and analyze the new interference situation of the device under test in real time; By repeatedly adjusting the interference power value and repeatedly using the simulation software to drive each interference source to send an interference signal, a simulation test of the anti-interference ability of the device under test is performed until the real anti-interference ability of the device under test is obtained.

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