A software-based radar platform for testing airborne electronic countermeasures equipment

Abstract

The present invention relates to the field of equipment testing, and in particular to a software-based radar platform for testing airborne electronic countermeasure equipment. It includes a control and power supply section, a radar signal generation section, a radio frequency front-end and power control section, an interference signal reception and processing section, a radar parameter interaction and processing module, and an interference signal detection module. The platform can simulate a complex electromagnetic environment on the ground to verify the warning performance of airborne electronic countermeasure equipment, such as signal sorting and threat identification. At the same time, the platform can receive and analyze active interference signals radiated by the equipment, and detect and evaluate performance such as interference threat level ranking, interference response time, and interference effectiveness. Therefore, the platform can implement an overall closed-loop test of airborne electronic countermeasure equipment from "reconnaissance and warning" to "interference implementation," thereby providing an effective technical means for in-depth exploration and mastering of equipment tactical performance and conducting combat application research.

Description

Technical Field

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

[0002] Airborne electronic countermeasures (ECM) equipment is a type of electronic equipment used on aircraft, primarily consisting of warning devices and jammers. This equipment is designed to receive, analyze, process, and identify threat radar signals across a wide range of airspace and frequency bands, jamming enemy radars according to optimal jamming criteria, thereby enhancing the aircraft's survivability in combat. Therefore, regular testing of airborne ECM equipment to understand its operational status and performance is crucial.

[0003] Currently, in-situ testing of airborne electronic countermeasures (ECM) equipment is often performed using standard instruments during maintenance and support. The most common method involves: first, a microwave signal source radiates an electromagnetic signal as a threat source into the ECM equipment to check its warning function; the equipment then receives the radiation, generating a specific interference signal; the interference signal is then received by a test antenna and analyzed using spectrum analyzers and other testing equipment to assess its effectiveness. However, for airborne ECM equipment as an integrated whole, the warning and interference processes are closely linked. However, the above-mentioned test method splits the equipment detection process, which should be complete, into two parts. It is impossible to determine the correspondence 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 interference reaction time, it is necessary to manually record the time when the signal source radiates and the spectrum analyzer receives; when testing 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 interference effectiveness, it is necessary to manually set the spectrum analyzer measurement parameters according to the interference pattern and adjust the cursor to obtain 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 human misjudgment leads to large measurement errors, 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 carrier aircraft and pilots. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned equipment testing process, such as test process fragmentation, low efficiency, and large errors, the present invention provides a software-based radar platform for testing airborne electronic countermeasure equipment. By utilizing its rich hardware resources and flexible and multifunctional software design, it realizes the unification of time bases and measurement data scheduling, and automatically completes the overall performance parameter detection of the equipment throughout the whole 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-based 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 generation 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] During radar signal simulation, the radar parameter interaction and processing module 6 sets the threat radar signal parameters and transmits them to the radar signal generation component 2 via the control and power supply component 1, generating a low-power RF radar signal. After being amplified by the RF front-end and power control component 3, the radar signal is radiated through the transmitting antenna to generate the threat signal.

[0008] When receiving the interference signal, the interference signal detection module 6 sends the user-set center frequency CF, sweep 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, and 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 step-up or step-down 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. At the same time, the frequency synthesis unit 11 and the up-conversion unit 9 are controlled according to the instruction information to 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 to 6GHz power amplifier and a transmitting antenna 7, and a 6GHz to 18GHz power amplifier and a transmitting antenna 8, which is used to amplify the low-power 2GHz to 6GHz and 6GHz to 18GHz radar RF signals sent by the up-conversion unit 9 and radiate them into space through the antennas of the corresponding frequency bands;

[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 commands 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 based on the relevant data, including time domain diagram, spectrum diagram, phase diagram, and pulse statistics diagram.

[0014] A testing method for a software-based radar platform for testing airborne electronic countermeasure equipment according to 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. 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 the signals according to a certain priority order. The sorted array is flist′;

[0021] S13. Radar signal generating section 2, RF front-end and power control section 3 radiate multiple radar signals set in step S11, and the airborne electronic countermeasures equipment receives the corresponding interference signal according to the threat level; the interference style is selected as "narrowband 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 input a radar signal parameter, the carrier frequency is fixed to f1;

[0025] S22. Record the radar signal into the airborne electronic countermeasures equipment threat library;

[0026] S23. Radar signal generating section 2, RF front end and power control section 3 radiate the radar signal set in step S21, and record the radiation start time t0 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";

[0027] S24. The interference signal receiving and processing section 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. Radar parameter interaction and processing module 5 inputs multiple radar signal parameters, each radar signal parameter forms a structure R i, all R i Construct 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 countermeasures equipment sets a different jamming pattern for each signal in Rlist′ according to the threat level;

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

[0034] S35 radar signal generating section 2, RF front end and power control section 3 radiation S31 set the radar signal, airborne electronic countermeasures equipment after receiving the threat level and interference pattern set, the radiation 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 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 6 extracts specific parameters of the waveform, and determines the effectiveness of the interference after comparison.

[0036] The present invention discloses a software-based radar platform for testing airborne electronic countermeasures (ECM) equipment. The platform utilizes software radio technology to generate multiple radar signals, simulate complex electromagnetic environments, and receive, store, process, and analyze complex electromagnetic environment generation and detection equipment, including active jamming signals. The platform comprises both hardware and software components. This platform can effectively verify the multi-target warning capability of airborne ECM equipment by radiating controllable radar signals to simulate complex electromagnetic environments in current scenarios, such as field testing of airborne self-defense ECM systems, teaching ECM and radar-related professional courses, and conducting electronic warfare hardware-in-the-loop simulation and defense demonstrations. Furthermore, the platform receives jamming signals to test and evaluate the equipment's threat ranking capability, jamming response time, and jamming effectiveness. Therefore, the platform can serve as a component of a radar-ECM offensive and defensive closed loop, enabling integrity testing of the equipment's integrated "warning reconnaissance" and "active jamming" capabilities, providing essential support for comprehensively understanding the performance, functionality, and operational effectiveness of airborne ECM 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 following briefly introduces the drawings required for use in the embodiments. 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 any 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 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 examples. It will be understood that the specific embodiments described herein are intended only to explain the relevant inventions and are not intended to limit the inventions. It should also be noted that, for ease of description, only portions relevant to the relevant inventions are shown in the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application may be combined with one another. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the examples.

[0042] Example 1

[0043] This embodiment is a software radar platform for testing airborne electronic countermeasure equipment, see 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 out through the transmitting antenna to realize the generation of the threat signal; when performing interference signal reception, the interference signal detection module 6 sets the center signal set by the user The frequency CF, sweep width SPAN, resolution bandwidth RBW, and tracking mode TRACE configuration information are 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 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.

[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, and 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 instruction information sent by the display control unit 13, and perform parameter solution 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, perform frequency synthesis according to the instruction information. The frequency synthesis unit 11 and the up-conversion unit 9 are controlled to ultimately generate a low-power radar RF signal; the RF front-end and power control part 3 consists 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 and 6GHz~18GHz radar RF 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 RF 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. 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 based on the relevant data, including time domain diagram, spectrum diagram, phase diagram, and pulse statistics diagram.

[0045] Example 2

[0046] Attachment Figure 3 This is a schematic diagram of a test scenario for 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 equipment's interference threat level ranking capability 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. The multiple radar signals are recorded into the airborne electronic countermeasures equipment threat library, and the threat levels are set in descending order according to the sequence numbers 1, 2, 3, 4, and 5 in the table. The sorted array is flist' (in this embodiment, flist' is consistent with flist);

[0053] S24. Radar signal generation unit 2, RF front-end and power control unit 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 mode is selected as "narrowband 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 = 9.2 GHz 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′. If i is consistent with the threat level ranking, 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 reception 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 until all threat level ranking results are tested.

[0057] Example 3

[0058] Table 2 is a table of radar signal parameters set when testing equipment interference reaction time provided in Example 3 of the present invention.

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

[0060]

[0061] The following steps can be used to complete the test of the equipment interference reaction time:

[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 software radar platform software system radar parameter interaction and processing module 5 input 1 radar signal parameters, the carrier frequency is fixed to f1 = 9.5GHz;

[0064] S33. Enter the radar signal into the airborne electronic countermeasures threat library and set the interference mode to "broadband noise";

[0065] S34. The radar signal generation component 2 and the RF front-end and power control component 3 of the software-based radar platform's hardware system radiate a radar signal, recording the radiation start time t0. The airborne electronic countermeasures equipment receives the signal and radiates an interference signal corresponding to the threat level.

[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, and 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 following steps can be followed to complete the test of equipment effectiveness:

[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;

[0075] S43. Enter the multiple radar signals into the airborne electronic countermeasures equipment threat library and assign threat levels to each of them in descending order of priority, 2, 5, 1, 3, and 4 in Table 3. The resulting structure array is Rlist′.

[0076] S44. Airborne electronic countermeasures equipment sets the jamming pattern for each signal in Rlist′ according to the threat level: "Broadband Noise," "Frequency Sweep," "Narrowband Targeting," "Dense False Targets," or "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 radar parameters of each part in Rlist', sequentially presets the CF, SPAN, RBW, TRACE and other parameters for each interference signal spectrum analysis 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 generation component 2 and the radio frequency front-end and power control component 3 of the software-based radar platform hardware system radiate the configured radar signal. Upon receiving the signal, the airborne electronic countermeasure equipment radiates the jamming signal according to the configured threat level and jamming pattern.

[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 various 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 set value. If the error is small, it is determined that the "broadband noise" interference is effective.

[0081] S48. Repeat this process until the jamming effectiveness test is completed at all threat levels.

[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 assess the equipment's 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 radio frequency 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, sweep 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, and amplifies the RF signal to obtain an intermediate frequency radar interference signal. The intermediate frequency radar interference signal is digitally collected and measured, and then the signal waveform and parameter characteristics are uploaded to the control and power supply part through the control bus. The radar parameter interaction and processing module and the interference signal detection module perform secondary spectrum analysis on the signal, and finally complete the information list and drawing display; Test methods, including: S1. Interference threat level ranking capability test. The specific test steps are as follows: S11. 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 the signals according to a certain priority order. The sorted array is flist′; S13. The radar signal generation unit, RF front-end, and power control unit radiate the multiple radar signals set in step S11. The airborne electronic countermeasures equipment receives the signals and radiates corresponding interference signals according to the threat level. The interference mode is selected as "narrowband targeting". S14. The interference signal reception and processing section receives the interference signal, obtains the intermediate frequency digital signal, and measures the current interference signal center frequency f0. It then sends f0 to the software system via the platform's control and power supply section. 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.

2. A software-based radar platform for testing airborne electronic countermeasure equipment according to claim 1, characterized in that The control and power supply part consists of a display control unit and a power supply unit, wherein the display control unit can control the radar signal generation 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 and power 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-based radar platform for testing airborne electronic countermeasure equipment according to claim 2, characterized in that The radar signal generation part consists of a baseband signal generation unit, an up-conversion unit, and a frequency synthesis unit: the baseband signal generation unit is used to receive command information sent by the display control unit, and perform parameter calculations based on the command information to obtain the frequency, pulse width, repetition rate, and amplitude 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 ultimately 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, and a 6GHz~18GHz power amplifier and transmitting antenna. Its function is to amplify the low-power 2GHz~6GHz and 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-based 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 control commands sent by the display control unit to control the digital processing process.

6. A software-based 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 based on the relevant data, including time domain diagram, spectrum diagram, phase diagram, and pulse statistics diagram.

7. A method for testing a software-based 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 input a radar signal parameter, the carrier frequency is fixed to f1; S22. Record the radar signal into the airborne electronic countermeasures equipment threat library; S23 radar signal generating section, RF front end and power control section radiation step S21 set the radar signal, this moment record radiation start time t0; airborne electronic countermeasures equipment after receiving the corresponding interference signal according to the threat level radiation, 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, and 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.

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: 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 countermeasures equipment sets a different jamming pattern 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 radar parameters in Rlist′, sequentially presets the center frequency (CF), sweep width (SPAN), resolution bandwidth (RBW), and tracking mode (TRACE) parameters for each interference signal spectrum analysis, forming an "analysis parameter structure" array Plist′. S35. The radar signal generating section, RF front end, and power control section radiate the radar signal set in S31. After receiving the radar signal, the airborne electronic countermeasures equipment radiates the interference signal according to the set threat level and interference pattern. 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 various 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. It performs spectrum analysis under preset conditions and measures the interference signal spectrum trace and the time domain waveform in the "zero span" mode. The interference signal detection module extracts specific waveform parameters and determines the effectiveness of the interference after comparison.

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