Software radar platform for airborne electronic countermeasure equipment test

Abstract

The invention relates to the field of equipment testing, in particular to a software radar platform for airborne electronic countermeasure equipment testing. Comprising a control and power supply part, a radar signal generation part, a radio frequency front end and power control part, an interference signal receiving and processing part, a radar parameter interaction and processing module and an interference signal detection module. The platform can simulate a complex electromagnetic environment on the ground so as to verify alarm performances such as signal sorting and threat identification of airborne electronic countermeasure equipment; meanwhile, the platform can receive and analyze an active interference signal radiated by equipment, and realizes detection and evaluation on performances such as interference threat level sorting, interference reaction time, interference effectiveness and the like. Therefore, the platform can realize the integral closed-loop test from reconnaissance alarm to interference implementation for the airborne electronic countermeasure device, thereby providing an effective technical means for deeply exploring and mastering the tactical performance of equipment and developing combat application research.

Description

Technical Field

[0001] The present invention relates to the field of equipment testing, and in particular to a software radar platform for testing airborne electronic countermeasure equipment. Background Art

[0002] Airborne electronic countermeasure equipment is an electronic device used on aircraft, mainly composed of warning equipment and jamming equipment. The equipment is designed to receive, analyze, process and identify wide airspace and wide frequency band threat radar signals, and jam enemy radars according to the best jamming criteria, thereby improving the survivability of the carrier aircraft in combat. Therefore, it is of great significance to conduct regular tests on airborne electronic countermeasure equipment to understand its operating status and performance.

[0003] At present, in the maintenance and support of airborne electronic countermeasure equipment, universal instruments are mostly used to complete the in-situ testing of equipment. The most common method is: first, the microwave signal source radiates electromagnetic signals as threat sources and inputs them into the airborne electronic countermeasure equipment to check the equipment warning function; after the equipment receives the radiation, it generates a certain pattern of interference signals; after the interference signals are received by the test antenna, the interference signals are analyzed using detection equipment such as spectrum analyzers to evaluate the interference effect. However, as an organic whole, the warning and interference processes of airborne electronic countermeasure equipment are closely linked. The above-mentioned test method splits the equipment detection process, which should be complete, into two parts. It is impossible to determine the corresponding relationship between threats and interference, and can only partially verify some performance parameters and combat effectiveness. In particular, it is more difficult to test equipment integrity items such as interference reaction time, threat level ranking capability, and interference effectiveness: when testing the interference reaction time, it is necessary to manually record the time when the signal source radiates and the spectrum analyzer receives; when testing the threat level ranking capability, a single signal source cannot simulate the complex electromagnetic environment radiated by multiple radars, and it is necessary to repeatedly adjust multiple parameters of the spectrum analyzer to find the interference frequency and then compare the radiation parameters; when testing the interference effectiveness, it is necessary to manually set the spectrum analyzer measurement parameters according to the interference pattern and adjust the cursor to obtain the waveform characteristics; sometimes when multiple threat sources exist at the same time, it is even necessary to "blindly guess" the interference pattern based on the received signal spectrum characteristics, and then determine the measurement method. It can be seen that the above-mentioned testing process involves many instruments, complicated steps, and low efficiency. It also requires a high threshold of professional knowledge from the operators, which does not conform to the characteristics of fast and efficient field in-situ testing. Moreover, sometimes large measurement errors are caused by human misjudgment, which affects the equipment's due performance on the battlefield and poses a hidden danger to the completion of combat missions and the safety of aircraft and pilots. Summary of the invention

[0004] In order to solve the problems of test process fragmentation, low efficiency, large errors, etc. existing in the above-mentioned equipment testing process, the present invention provides a software-based radar platform for testing airborne electronic countermeasure equipment, which utilizes its rich hardware resources and flexible and multifunctional software design to achieve time base unification and measurement data scheduling, and automatically completes the overall performance parameter detection of the equipment throughout the process, thereby providing a new technical means for in-situ testing of airborne electronic countermeasure equipment.

[0005] To achieve the above object, the technical solution of the present invention is:

[0006] A software radar platform for testing airborne electronic countermeasure equipment, which is special in that it includes a control and power supply part 1, a radar signal generating part 2, a radio frequency front end and power control part 3, an interference signal receiving and processing part 4, a radar parameter interaction and processing module 6, and an interference signal detection module 6;

[0007] When performing radar signal simulation, the radar parameter interaction and processing module 6 sets the threat radar signal parameters, and sends them to the radar signal generation part 2 through the control and power supply part 1 to generate a low-power radio frequency radar signal; after being amplified by the radio frequency front end and power control part 3, the radar signal is radiated through the transmitting antenna to achieve the generation of threat signals;

[0008] When receiving the interference signal, the interference signal detection module 6 sends the user-set center frequency CF, scan width SPAN, resolution bandwidth RBW, and tracking mode TRACE configuration information to the interference signal receiving and processing part 4. After receiving the radar interference signal, the interference signal receiving and processing part 4 mixes, filters, amplifies and processes the radio frequency signal to obtain an intermediate frequency radar interference signal, digitally collects and measures the intermediate frequency radar interference signal, and then uploads the signal waveform, parameters and other characteristics to the control and power supply part 1 through the control bus. After the radar parameter interaction and processing module 5 and the interference signal detection module 6 perform secondary operations such as spectrum analysis on the signal, the information list and drawing display are finally completed.

[0009] Preferably, the control and power supply part 1 is composed of a display control unit 13 and a power supply unit 14, wherein the display control unit 13 can control the radar signal generating part 2 to generate a specified radar signal based on the radar signal parameters set by the human-computer interaction software, can set the monitoring frequency band and working mode in the interference signal receiving and processing part 4, and display the interference signal frequency, power and other parameters; the power supply unit 14 can convert the AC voltage into a +12V DC power supply through the AC-DC conversion module, and then the DC-DC module completes the boost or buck to supply each power module;

[0010] Preferably, the radar signal generating part 2 is composed of a baseband signal generating unit 10, an up-conversion unit 9, and a frequency synthesis unit 11: the baseband signal generating unit 10 is used to receive the instruction information sent by the display control unit 13, and perform parameter calculation according to the instruction information to obtain the frequency, pulse width, repetition rate, amplitude and other information of each radar, and generate a radar baseband signal based on this information, and at the same time control the frequency synthesis unit 11 and the up-conversion unit 9 according to the instruction information, and finally generate a low-power radar radio frequency signal;

[0011] Preferably, the RF front end and power control part 3 is composed of a 2GHz-6GHz power amplifier and a transmitting antenna 7, a 6GHz-18GHz power amplifier and a transmitting antenna 8, which is used to amplify the low-power 2GHz-6GHz, 6GHz-18GHz radar RF signal sent by the up-conversion unit 9, and radiate it into space through the antenna of the corresponding frequency band;

[0012] Preferably, the interference signal receiving and processing part 4 is mainly composed of a 6GHz~18GHz frequency conversion component 15 and a digital processing unit 12. The 6GHz~18GHz frequency conversion component 15 is used to realize the reception of 6GHz~18GHz radio frequency interference signals. After filtering, limiting, and low-noise amplification, it is sent to the digital processing unit 12 to complete the digital quantization of the intermediate frequency interference signal, and perform signal acquisition and parameter measurement. It can receive the control command sent by the display control unit 13 to control the digital processing process.

[0013] Preferably, the radar parameter interaction and processing module 5 can simulate various radar signals and anti-interference signals, and can also customize parameters to generate specific signals; the interference signal detection module 4 can receive the interference signal data delivered by the radar parameter interaction and processing module 5, process the data through algorithm processing, and display the waveform diagram used by the user according to the relevant data, including time domain diagram, spectrum diagram, phase diagram, and pulse statistics diagram.

[0014] A testing method of a software radar platform for testing airborne electronic countermeasure equipment of the present invention is characterized by comprising:

[0015] S1, interference threat level ranking ability test;

[0016] S2, interference reaction time test;

[0017] S3. Interference effectiveness test.

[0018] Preferably, the interference threat level ranking capability test in S1 has the following specific test steps:

[0019] S11. The radar parameter interaction and processing module 5 inputs multiple radar signal parameters with different carrier frequencies, where each carrier frequency forms an array flist;

[0020] S12. Record the multiple radar signals set in S11 into the airborne electronic countermeasure equipment threat library, and sort the threat levels of each signal according to a certain priority order. The sorted array is flist′;

[0021] S13. The radar signal generating part 2, the RF front end and the power control part 3 radiate the multiple radar signals set in step S11, and the airborne electronic countermeasure equipment radiates the corresponding interference signal according to the threat level after receiving it; the interference style is selected as "narrow band targeting";

[0022] S14. The interference signal receiving and processing part 4 receives the interference signal, obtains the intermediate frequency digital signal and measures the current interference signal center frequency f0, and sends f0 to the software system via the platform control and power supply part 1; the interference signal detection module 6 finds the ranking number i of f0 in flist′, if i is consistent with the threat level ranking, the test result is valid and correct.

[0023] Preferably, the interference reaction time test in S2 has the following specific test steps:

[0024] S21. Radar parameter interaction and processing module 5 inputs a radar signal parameter, whose carrier frequency is fixed to f1;

[0025] S22. recording the radar signal into the airborne electronic countermeasure equipment threat library;

[0026] S23. The radar signal generating part 2, the RF front end and the power control part 3 radiate the radar signal set in step S21, and the radiation start time t0 is recorded at this moment; after receiving the signal, the airborne electronic countermeasure equipment radiates the corresponding interference signal according to the threat level, and the interference style is selected as "broadband noise";

[0027] S24. The interference signal receiving and processing part 6 receives the interference signal, obtains the intermediate frequency digital signal and measures the spectrum with f1 as the center frequency; the interference signal detection module 6 captures the moment t1 when the spectrum suddenly changes, then t1-t0 is the interference reaction time Δt 干扰 , the software-based radar platform stops radiating signals;

[0028] S25. Repeat steps S23 to S24 multiple times to obtain multiple Δt 干扰 , take the average value, which is the interference reaction time.

[0029] Preferably, the interference effectiveness in S3 is determined by measuring the interference pattern, and the specific test steps are as follows:

[0030] S31. The radar parameter interaction and processing module 5 inputs multiple radar signal parameters, each radar signal parameter forms a structure Ri, and all Ri constitute multiple "radar parameter structure" arrays Rlist;

[0031] S32. Record the multiple radar signals set in S31 into the airborne electronic countermeasure equipment threat library, and sort the threat levels of each signal according to a certain priority order. The structure array after sorting is Rlist′;

[0032] S33. The airborne electronic countermeasure equipment sets different interference patterns for each signal in Rlist′ according to the threat level;

[0033] S34. The interference signal detection module 6, based on the interference pattern set in S33 and the parameters of each radar in Rlist′, sequentially presets the center frequency (CF), sweep width (SPAN), resolution bandwidth (RBW), tracking mode (TRACE) and other parameters for each interference signal spectrum analysis to form an "analysis parameter structure" array Plist′;

[0034] S35. The radar signal generating part 2, the RF front end and the power control part 3 radiate the radar signal set in S31, and the airborne electronic countermeasure equipment receives the radar signal according to the set threat level and interference pattern, and radiates the interference signal;

[0035] S36. The interference signal receiving and processing part 6 receives the interference signal and obtains the intermediate frequency digital signal; based on the current threat level, the interference signal detection module 6 retrieves the various parameters of the corresponding structure in Plist′, and sends them to the digital processing unit of the interference signal receiving and processing part 6 via the display control unit 13 of the control and power supply part 1, to realize the spectrum analysis under the preset conditions, measure the interference signal spectrum trace and the time domain waveform in the "zero span" mode; the interference signal detection module 6 extracts the specific parameters of the waveform, and determines the effectiveness of the interference after comparison.

[0036] A software radar platform for testing airborne electronic countermeasure equipment of the present invention is a kind of radar platform constructed by software radio technology, which can generate multiple radar signals, simulate complex electromagnetic environment, receive, store, process and analyze complex electromagnetic environment generation and detection equipment including active interference signal, and includes two parts of hardware system and software system. It can simulate complex electromagnetic environment by radiating controllable radar signal in the current use scenarios such as field detection of airborne self-defense electronic countermeasure system, teaching of electronic countermeasure and radar related majors, and demonstration and verification of electronic warfare semi-physical simulation and actual defense, and effectively verify the multi-target warning capability of airborne electronic countermeasure equipment; by receiving interference signal, the threat sorting capability, interference reaction time, interference effectiveness and other performances of the equipment are tested and evaluated. Therefore, the platform can be used as a component of radar-electronic countermeasure attack and defense closed loop, realize the integrity test of organic combination of equipment "warning reconnaissance" and "active interference", and provide necessary support for fully mastering the performance, function and combat effectiveness of airborne electronic countermeasure equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a diagram of the hardware system composition of the present invention;

[0039] Figure 2 It is the software system architecture diagram of the present invention;

[0040] Figure 3 It is a schematic diagram of the test scenario of the present invention. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It will be appreciated that the specific embodiments described herein are only used to explain the relevant inventions and are not intended to limit the invention. It should also be noted that, for ease of description, only portions related to the relevant inventions are shown in the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0042] Example 1

[0043] A software radar platform for testing airborne electronic countermeasure equipment in this embodiment is shown in the attached Figure 1-3, including a control and power supply part 1, a radar signal generating part 2, a radio frequency front end and power control part 3, an interference signal receiving and processing part 4, a radar parameter interaction and processing module 6, and an interference signal detection module 6; when performing radar signal simulation, the radar parameter interaction and processing module 6 sets the threat radar signal parameters, and sends them to the radar signal generating part 2 through the control and power supply part 1 to generate a low-power radio frequency radar signal; after being amplified by the radio frequency front end and power control part 3, the radar signal is radiated through the transmitting antenna to generate a threat signal; when receiving the interference signal, the interference signal detection module 6 will set the center signal set by the user. The configuration information of frequency CF, scan width SPAN, resolution bandwidth RBW, and tracking mode TRACE is sent to the interference signal receiving and processing part 4. After receiving the radar interference signal, the interference signal receiving and processing part 4 mixes, filters, amplifies and processes the RF signal to obtain an intermediate frequency radar interference signal, collects and measures the intermediate frequency radar interference signal digitally, and then uploads the signal waveform, parameters and other characteristics to the control and power supply part 1 through the control bus. After the radar parameter interaction and processing module 5 and the interference signal detection module 6 perform secondary operations such as spectrum analysis on the signal, the information list and drawing display are finally completed.

[0044] The control and power supply part 1 is composed of a display control unit 13 and a power supply unit 14, wherein the display control unit 13 can control the radar signal generating part 2 to generate a specified radar signal based on the radar signal parameters set by the human-computer interaction software, can set the monitoring frequency band and working mode in the interference signal receiving and processing part 4, and display the interference signal frequency, power and other parameters; the power supply unit 14 can convert the AC voltage into a +12V DC power supply through the AC-DC conversion module, and then the DC-DC module completes the boost or buck to supply each power module; the radar signal generating part 2 is composed of a baseband signal generating unit 10, an up-conversion unit 9, and a frequency synthesis unit 11: the baseband signal generating unit 10 is used to receive the command information sent by the display control unit 13, and perform parameter solution according to the command information to obtain the frequency, pulse width, repetition rate, amplitude and other information of each radar, generate a radar baseband signal based on this information, and at the same time, perform frequency conversion according to the command information. The frequency synthesis unit 11 and the up-conversion unit 9 are controlled to finally generate a low-power radar radio frequency signal; the radio frequency front end and power control part 3 is composed of a 2GHz~6GHz power amplifier and a transmitting antenna 7, a 6GHz~18GHz power amplifier and a transmitting antenna 8, which is used to amplify the low-power 2GHz~6GHz, 6GHz~18GHz radar radio frequency signals sent by the up-conversion unit 9, and radiate them into the space through the antenna of the corresponding frequency band; the interference signal receiving and processing part 4 is mainly composed of a 6GHz~18GHz frequency conversion component 15 and a digital processing unit 12. The 6GHz~18GHz frequency conversion component 15 is used to realize the reception of 6GHz~18GHz radio frequency interference signals. After filtering, limiting, and low-noise amplification, it is sent to the digital processing unit 12 to complete the digital quantization of the intermediate frequency interference signal, and perform signal acquisition and parameter measurement. It can receive the control command sent by the display control unit 13 to control the digital processing flow. The radar parameter interaction and processing module 5 can simulate various radar signals and anti-interference signals, and can also customize parameters to generate specific signals; the interference signal detection module 4 can receive the interference signal data delivered by the radar parameter interaction and processing module 5, process the data through algorithm processing, and display the waveform diagram used by the user according to the relevant data, including time domain diagram, spectrum diagram, phase diagram, and pulse statistics diagram.

[0045] Example 2

[0046] Attached Figure 3 A test scenario schematic diagram of a software-based radar platform for testing airborne electronic countermeasure equipment provided in Example 2 of the present invention. Table 1 is a table of five radar signal parameters set when testing the interference threat level ranking capability of the equipment provided in Example 2 of the present invention.

[0047] Table 1 Radar signal parameters for measuring interference threat level ranking capability

[0048]

[0049] Follow these steps to complete the test of the equipment's interference threat level ranking capability:

[0050] S21. Reference Figure 3 , place the software-based radar platform at the test location, connect the transmitting antenna, and align the transmitting antenna with the 45° direction-finding receiving antenna of the carrier aircraft;

[0051] S22. Referring to Table 1, the radar parameter interaction and processing module 5 inputs 5 radar signal parameters, wherein each carrier frequency constitutes an array flist;

[0052] S23. Record the set multiple radar signals into the airborne electronic countermeasure equipment threat library, and set the threat level from high to low in the order of 1, 2, 3, 4, and 5 in the table. The array after sorting is flist' (in this embodiment, flist' is consistent with flist);

[0053] S24. The radar signal generating part 2, the RF front end and the power control part 3 radiate the five radar signals into space. After receiving the signals, the airborne electronic countermeasure equipment radiates the corresponding interference signals according to the highest threat level (flist′[0]). The interference style is selected as “narrow band targeting”.

[0054] S25. The interference signal receiving and processing part 4 receives the interference signal, obtains the intermediate frequency digital signal and measures the center frequency f0=9.2GHz of the current interference signal, and sends f0 to the software system via the control and power supply part 1 of the platform; the interference signal detection module 6 in the software system finds the ranking number i=0 of f0 in flist′, and i is consistent with the threat level ranking, then the test result is valid and correct.

[0055] S26. After receiving the interference signal, the airborne electronic countermeasure equipment radiates the corresponding interference signal according to the second highest threat level (flist′[1]). The platform's hardware system "interference signal receiving and processing part" measures the interference center frequency f0 = 10.3 GHz, the ranking number i = 1, and the result is valid;

[0056] S27. This process is repeated in this way until all threat level ranking results are tested.

[0057] Example 3

[0058] Table 2 is a radar signal parameter table set when the test equipment provided in Example 3 of the present invention interferes with the reaction time.

[0059] Table 2 Radar signal parameters for measuring interference reaction time

[0060]

[0061] You can complete the test of the equipment interference reaction time by following the steps below:

[0062] S31. Reference Figure 3 , place the software-based radar platform at the test location, connect the transmitting antenna, and align the transmitting antenna with the 45° direction-finding receiving antenna of the carrier aircraft;

[0063] S32. The radar parameter interaction and processing module 5 of the software radar platform software system inputs a radar signal parameter, and its carrier frequency is fixed to f1 = 9.5GHz;

[0064] S33. Record the radar signal into the airborne electronic countermeasure equipment threat library and set the interference style to "broadband noise";

[0065] S34. The radar signal generation part 2 and the RF front end and power control part 3 of the hardware system of the software radar platform radiate the radar signal, and the radiation start time t0 is recorded at this moment; the airborne electronic countermeasure equipment radiates the corresponding interference signal according to the threat level after receiving the signal;

[0066] S35. The interference signal receiving and processing part 4 of the software radar platform hardware system receives the interference signal, obtains the intermediate frequency digital signal and measures the spectrum with f1 as the center frequency; the interference signal detection module 6 in the platform software system captures the moment t1 when the spectrum suddenly changes, then t1-t0 is the interference reaction time Δt 干扰 , the software-based radar platform stops radiating signals;

[0067] S36. Repeat steps S34 to S35 multiple times to obtain multiple Δt 干扰 , take the average value, which is the interference reaction time.

[0068] Example 4

[0069] Table 3 is a table of five radar signal parameters set when testing the interference effectiveness of equipment provided in Example 4 of the present invention.

[0070] Table 3 Radar signal parameters for measuring jamming effectiveness

[0071]

[0072] The effectiveness of the equipment can be tested by following the steps below:

[0073] S41. Reference Figure 3 , place the software-based radar platform at the test location, connect the transmitting antenna, and align the transmitting antenna with the 45° direction-finding receiving antenna of the carrier aircraft;

[0074] S42. According to Table 3, the radar parameter interaction and processing module 5 of the software radar platform software system inputs 5 radar signal parameters, and each radar signal parameter forms a structure R i , all R i Construct multiple "radar parameter structure" arrays Rlist; (the content is not displayed here)

[0075] S43. Record the set multiple radar signals into the airborne electronic countermeasure equipment threat library, and set the threat levels from high to low according to the priority order of sequence numbers 2, 5, 1, 3, and 4 in Table 3. The structure array after sorting is Rlist′;

[0076] S44. The airborne electronic countermeasure equipment sets the interference pattern for each signal in Rlist′ according to the threat level: "broadband noise", "frequency scanning", "narrowband targeting", "dense false targets", "speed deception";

[0077] S45. The interference signal detection module 4 in the software radar platform software system, based on the interference pattern set in S44 and the parameters of each radar in Rlist', presets the CF, SPAN, RBW, TRACE and other parameters of each interference signal spectrum analysis in turn to form an "analysis parameter structure" array Plist';

[0078] For example, for the first radar signal in Rlist′, according to the signal parameters and interference pattern, when setting the interference signal spectrum analysis, Plist′[0] includes: CF=9.2GHz, SPAN=200MHz, RBW=Auto, TRACE=Maxhold;

[0079] S46. The radar signal generating part 2 and the radio frequency front end and power control part 3 of the software radar platform hardware system radiate the set radar signal, and the airborne electronic countermeasure equipment radiates the interference signal according to the set threat level and interference pattern after receiving it;

[0080] S47. The interference signal receiving and processing part 4 of the software-based radar platform hardware system receives the interference signal and obtains the intermediate frequency digital signal; if the current threat level is the highest, the interference signal detection module 6 of the software system retrieves the parameters of the corresponding structure in Plist′[0], and sends them to the interference signal receiving and processing part 4 via the hardware system control and power supply part 1, to realize the spectrum analysis under the preset conditions; the interference signal detection module 4 of the software system calculates the interference power and bandwidth based on the spectrum, and compares them with the interference setting value. If the error is small, it is determined that the "broadband noise" interference is effective.

[0081] S48. And so on, until the interference effectiveness test under all threat levels is completed.

[0082] The beneficial effects of the above four embodiments include:

[0083] (1) It can effectively detect the multi-target warning capability of the warning equipment of airborne electronic countermeasure equipment;

[0084] (2) Effectively evaluate the equipment interference threat ranking capability;

[0085] (3) The equipment interference response time can be tested;

[0086] (4) The effectiveness of interference (style, power, strategy) can be tested and evaluated.

[0087] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A software-based radar platform for testing airborne electronic countermeasure equipment, characterized in that It includes control and power supply part, radar signal generation part, RF front end and power control part, interference signal receiving and processing part, radar parameter interaction and processing module, and interference signal detection module; When performing radar signal simulation, the radar parameter interaction and processing module sets the threat radar signal parameters and sends them to the radar signal generation part through the control and power supply part to generate a low-power RF radar signal; After being amplified by the RF front end and power control part, the radar signal is radiated through the transmitting antenna to generate a threat signal. When receiving interference signals, the interference signal detection module sends the user-set center frequency CF, scan width SPAN, resolution bandwidth RBW, and tracking mode TRACE configuration information to the interference signal receiving and processing part. After receiving the radar interference signal, the interference signal receiving and processing part mixes, filters, amplifies and processes the RF signal to obtain an intermediate frequency radar interference signal, digitally collects and measures the intermediate frequency radar interference signal, and then uploads the signal waveform, parameters and other characteristics to the control and power supply part through the control bus. After the radar parameter interaction and processing module and the interference signal detection module perform secondary operations such as spectrum analysis on the signal, the information list and drawing display are finally completed.

2. A software radar platform for testing airborne electronic countermeasure equipment according to claim 1, characterized in that The control and power supply part is composed of a display control unit and a power supply unit, wherein the display control unit can control the radar signal generating part to generate a specified radar signal based on the radar signal parameters set by the human-computer interaction software, can set the monitoring frequency band and working mode in the interference signal receiving and processing part, and display the interference signal frequency, power and other parameters; the power supply unit can convert the AC voltage into a +12V DC power supply through the AC-DC conversion module, and then the DC-DC module completes the boost or step-down to supply each power-consuming module.

3. A software radar platform for testing airborne electronic countermeasure equipment according to claim 2, characterized in that The radar signal generating part is composed of a baseband signal generating unit, an up-conversion unit, and a frequency synthesis unit: the baseband signal generating unit is used to receive the command information sent by the display control unit, and perform parameter calculation according to the command information to obtain the frequency, pulse width, repetition rate, amplitude and other information of each radar, and generate a radar baseband signal based on this information. At the same time, the frequency synthesis unit and the up-conversion unit are controlled according to the command information to finally generate a low-power radar radio frequency signal.

4. A software-based radar platform for testing airborne electronic countermeasure equipment according to claim 3, characterized in that: The RF front end and power control part consists of a 2GHz~6GHz power amplifier and transmitting antenna, a 6GHz~18GHz power amplifier and transmitting antenna, and its function is to amplify the low-power 2GHz~6GHz, 6GHz~18GHz radar RF signals sent by the up-conversion unit, and radiate them into space through the antenna of the corresponding frequency band.

5. A software radar platform for testing airborne electronic countermeasure equipment according to claim 1, characterized in that The interference signal receiving and processing part is mainly composed of a 6GHz~18GHz frequency conversion component and a digital processing unit. The 6GHz~18GHz frequency conversion component is used to realize the reception of 6GHz~18GHz radio frequency interference signals. After filtering, limiting, and low-noise amplification, it is sent to the digital processing unit to complete the digital quantization of the intermediate frequency interference signal, and perform signal acquisition and parameter measurement. It can receive the control commands sent by the display control unit to control the digital processing process.

6. A software radar platform for testing airborne electronic countermeasure equipment according to claim 1, characterized in that The radar parameter interaction and processing module can simulate various radar signals and anti-interference signals, and can also customize parameters to generate specific signals; the interference signal detection module can receive the interference signal data delivered by the radar parameter interaction and processing module, process the data through algorithm processing, and display the waveform diagram used by the user according to the relevant data, including time domain diagram, spectrum diagram, phase diagram, and pulse statistics diagram.

7. A method for testing a software radar platform for testing airborne electronic countermeasure equipment according to any one of claims 1 to 6, characterized in that include: S1. Interference threat level sorting capability test. The specific test steps are as follows: S11. The radar parameter interaction and processing module 5 inputs multiple radar signal parameters with different carrier frequencies, where each carrier frequency forms an array flist; S12. Record the multiple radar signals set in S11 into the airborne electronic countermeasure equipment threat library, and sort the threat levels of each signal according to a certain priority order. The sorted array is flist′; S13. The radar signal generating part, the RF front end and the power control part radiate the multiple radar signals set in step S11, and the airborne electronic countermeasure equipment radiates the corresponding interference signals according to the threat level after receiving them; the interference style is selected as "narrow band targeting"; S14. The interference signal receiving and processing part receives the interference signal, obtains the intermediate frequency digital signal and measures the current interference signal center frequency f0, and sends f0 to the software system through the control and power supply part of the platform; the interference signal detection module finds the ranking number i of f0 in flist′, if i is consistent with the threat level ranking, the test result is valid and correct.

8. A method for testing a software radar platform for testing airborne electronic countermeasure equipment according to any one of claims 1 to 6, characterized in that include: S2, interference reaction time test, the specific test steps are as follows: S21. Radar parameter interaction and processing module 5 inputs a radar signal parameter, whose carrier frequency is fixed to f1; S22. recording the radar signal into the airborne electronic countermeasure equipment threat library; S23. The radar signal generating part, the RF front end and the power control part radiate the radar signal set in step S21, and the radiation start time t0 is recorded at this moment; after receiving the interference signal, the airborne electronic countermeasure equipment radiates the corresponding interference signal according to the threat level, and the interference style is selected as "broadband noise"; S24. The interference signal receiving and processing part receives the interference signal, obtains the intermediate frequency digital signal and measures the spectrum with f1 as the center frequency; the interference signal detection module captures the moment t1 when the spectrum suddenly changes, then t1-t0 is the interference reaction time Δt 干扰 , the software-based radar platform stops radiating signals; S25. Repeat steps S23 to S24 multiple times to obtain multiple Δt 干扰 , take the average value, which is the interference reaction time.

9. A method for testing a software radar platform for testing airborne electronic countermeasure equipment according to any one of claims 1 to 6, characterized in that include: S3, interference effectiveness test, the specific test steps are as follows: S31. The radar parameter interaction and processing module inputs multiple radar signal parameters, and each radar signal parameter forms a structure R i , all R i Construct multiple "radar parameter structure" arrays Rlist; S32. Record the multiple radar signals set in S31 into the airborne electronic countermeasure equipment threat library, and sort the threat levels of each signal according to a certain priority order. The structure array after sorting is Rlist′; S33. The airborne electronic countermeasure equipment sets different interference patterns for each signal in Rlist′ according to the threat level; S34. The interference signal detection module, based on the interference pattern set in S33 and the parameters of each radar in Rlist′, sequentially presets the center frequency (CF), sweep width (SPAN), resolution bandwidth (RBW), tracking mode (TRACE) and other parameters for each interference signal spectrum analysis to form an "analysis parameter structure" array Plist′; S35. The radar signal generating part, the RF front end and the power control part radiate the radar signal set in S31, and the airborne electronic countermeasure equipment radiates the interference signal according to the set threat level and interference pattern after receiving it; S36. The interference signal receiving and processing section receives the interference signal and obtains the intermediate frequency digital signal; Based on the current threat level, the interference signal detection module retrieves the parameters of the corresponding structure in Plist′, and sends them to the digital processing unit of the interference signal receiving and processing part via the display control unit of the control and power supply part, to realize spectrum analysis under preset conditions, measure the interference signal spectrum trace and the time domain waveform in the "zero span" mode; the interference signal detection module extracts specific parameters of the waveform, and determines the effectiveness of the interference after comparison.

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