System for evaluating effectiveness of radar against high-power microwave attack

Abstract

The application provides a radar anti-high-power microwave radiation attack efficiency evaluation system, which comprises a high-power microwave radiation simulation module, an electromagnetic wave transmission simulation module connected with the high-power microwave radiation simulation module and the radar simulation module, a radar simulation module connected with the electromagnetic wave transmission simulation module and the efficiency evaluation module, and an efficiency evaluation module connected with the radar simulation module and the key sensitive component threshold value library module. The high-power microwave radiation simulation module radiates a high-power microwave signal, which is sent to the radar simulation module through the electromagnetic wave transmission simulation module. The efficiency evaluation module collects microwave energy values of each key point of the radar, compares the microwave energy values with reference values in the key sensitive component threshold value library module, and gives performance evaluation results. The application can provide technical support for reinforcing the anti-high-power microwave radiation capability of existing civil aviation radars and can provide a theoretical reference for the adaptability of newly developed civil aviation radars in a strong electromagnetic environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of radar radio frequency signal processing, and particularly relates to a radar anti-high-power microwave radiation attack efficiency evaluation system. BACKGROUND

[0002] With the development of microwave technology, high-power microwave radiation systems are increasingly mature, and the frequency of radiation is generally in the range of 300MHz-30GHz, and the pulse power is in the gigawatt level. Using directional emission of high-power microwave beams can destroy and interfere with sensitive electronic components in the opponent's electronic systems, information systems and communication links.

[0003] At present, there is no system for evaluating the anti-high-power microwave radiation attack efficiency of a radar complete system, and only single components are simulated and analyzed. In addition, if a radar complete system is subjected to a radar bottom-up experiment by using an experimental method, there are currently some difficulties. First, there is a lack of a microwave darkroom environment that can accommodate radar equipment. In addition, the actual operation cost and difficulty are too great. There is an urgent need for a radar anti-high-power microwave radiation attack efficiency evaluation system that can simulate the situation of high-power microwave radiation attacking a radar complete system through simulation calculation, and quantitatively analyze the performance impact on radar equipment. The system can provide technical support for strengthening the anti-high-power microwave radiation capability of existing civil aviation radars, and can also provide theoretical reference for the adaptability of newly researched civil aviation radars in a strong electromagnetic environment. SUMMARY

[0004] The purpose of the present application is to provide a radar anti-high-power microwave radiation attack efficiency evaluation system. The system mainly aims at the problems of a lack of conditions, high engineering cost and great difficulty in developing a radar complete system anti-high-power microwave radiation attack efficiency evaluation experiment in practice. The system proposes to use software simulation calculation to simulate the situation of high-power microwave radiation attacking a radar complete system, and quantitatively analyze the performance impact on radar equipment. The system can provide technical support for strengthening the anti-high-power microwave radiation attack of existing civil aviation radars, and can also provide theoretical reference for the adaptability of newly researched civil aviation radars in a strong electromagnetic environment.

[0005] A radar anti-high-power microwave radiation attack efficiency evaluation system includes a high-power microwave radiation simulation module, an electromagnetic wave transmission simulation module connected with the high-power microwave radiation simulation module and the radar simulation module, a radar simulation module connected with the electromagnetic wave transmission simulation module and the efficiency evaluation module, and an efficiency evaluation module connected with the radar simulation module and the key sensitive component threshold value library module. The high-power microwave radiation simulation module radiates high-power microwave signals, which are sent to the radar simulation module through the electromagnetic wave transmission simulation module. The efficiency evaluation module collects microwave energy values at each key point of the radar, compares them with reference values in the key sensitive component threshold value library module, and gives performance evaluation results. The present application can provide technical support for strengthening the anti-high-power microwave radiation capability of existing civil aviation radars, and can also provide theoretical reference for the adaptability of newly researched civil aviation radars in a strong electromagnetic environment.

[0006] Further, the high-power microwave radiation simulation module mainly simulates various types of high-power microwave radiation systems, generates high-power microwave signals with a pulse width of 10 ns-100 ns, a frequency coverage of 300 MHz-10 GHz, and a power of 1 MW-1 GW, and the simulation simulation radiation beam width is 1°-5° adjustable, and the radiation antenna gain is greater than or equal to 25 dB.

[0007] Further, the electromagnetic wave transmission simulation module mainly simulates the transmission of high-power microwaves in space, including the attenuation of electromagnetic wave transmission with transmission distance, atmospheric refraction, and rain weather on electromagnetic wave attenuation.

[0008] Further, the radar simulation module mainly uses three-dimensional modeling technology to establish a three-dimensional geometric model of the radar equipment according to the actual physical structure of the radar equipment; and an electromagnetic wave receiving model is established according to the electromagnetic wave transmission theory, which is used to receive the high-power microwave signals transmitted by the high-power microwave radiation simulation module through the electromagnetic wave transmission simulation module.

[0009] Further, the key sensitive component threshold library module mainly collects the threshold values of the electromagnetic wave damage of the sensitive key parts of the radar, and uses the threshold values as reference values for the radar performance evaluation module.

[0010] Further, the performance evaluation module collects the microwave energy values of the radar key points and compares them with the reference values in the key sensitive component threshold library module to give the performance evaluation results of whether damaged.

[0011] The radar anti-high-power microwave radiation attack performance evaluation system is proposed by using the software simulation calculation method, which can be used for the attack of different high-power microwave radiation systems on different types of civil aviation radars, and can be used for the whole simulation simulation and quantitative analysis of the influence on the performance of the radar. The popularization and application of the invention can further improve the pertinence of the reinforced civil aviation radar against high-power microwave radiation attack, reduce the engineering experiment cost, and play the service performance of the civil aviation radar for air traffic control. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of one embodiment of the radar anti-high-power microwave radiation attack performance evaluation system of the present application;

[0013] In the figure: 1-high-power microwave radiation simulation module, 2-electromagnetic wave transmission simulation module, 3-radar simulation module, 4-key sensitive component threshold library module, 5-performance evaluation module. DETAILED DESCRIPTION

[0014] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application, but they do not constitute limitations on the present application, and are only examples. The advantages of the present application will become more apparent and easier to understand through the description.

[0015] Figure 1 The radar anti-high-power microwave radiation attack effectiveness evaluation system of the present application is shown, which comprises a high-power microwave radiation simulation module 1, an electromagnetic wave transmission simulation module 2 connected with the high-power microwave radiation simulation module 1 and the radar simulation module 3, a radar simulation module 3 connected with the electromagnetic wave transmission simulation module 2 and the effectiveness evaluation module 5, and an effectiveness evaluation module 5 connected with the radar simulation module and the key sensitive component threshold value library module 4. The high-power microwave radiation simulation module 1 radiates high-power microwave signals, which are sent to the radar simulation module 3 through the electromagnetic wave transmission simulation module 2. The effectiveness evaluation module 5 collects microwave energy values at each key point of the radar, compares them with reference values in the key sensitive component threshold value library module 4, and gives performance evaluation results to realize quantitative analysis of the performance influence of the radar equipment.

[0016] In another embodiment, the high-power microwave radiation simulation module 1 mainly simulates each type of high-power microwave radiation system, simulates high-power microwave signals with a pulse width of 10 ns-100 ns, a frequency coverage of 300 MHz-10 GHz, and a power of 1 MW-1 GW, and the simulation simulation radiation beam width is adjustable, and the radiation antenna gain is greater than or equal to 25 dB. The output is connected with the input end of the electromagnetic wave transmission simulation module 2.

[0017] Further, the electromagnetic wave transmission simulation module 2 mainly simulates the transmission of high-power microwaves in space, including the attenuation of electromagnetic wave transmission with transmission distance, atmospheric refraction, and rain weather attenuation of electromagnetic wave. The input end is connected with the high-power microwave radiation simulation module 1, and the output end is connected with the radar simulation module 3.

[0018] Further, the radar simulation module 3 mainly establishes a radar three-dimensional geometric model and a radar electromagnetic wave receiving model, which is used to receive high-power microwave signals transmitted from the high-power microwave radiation simulation module 1 through the electromagnetic wave transmission simulation module 2. The input end is connected with the electromagnetic wave transmission simulation module 2, and the output end is connected with the effectiveness evaluation module 5.

[0019] Further, the key sensitive component threshold value library module 4 mainly collects the threshold values of electromagnetic wave damage of each sensitive key part device in the radar, which is used as a reference value for the effectiveness evaluation module 5 to evaluate the effectiveness of the radar. The output end is connected with the effectiveness evaluation module 5.

[0020] Further, the performance evaluation module 5 collects the microwave energy values of each key point of the radar, compares the reference values in the key sensitive component threshold value library module 4, and gives the performance evaluation results of interference, disturbance, degradation or damage.

[0021] The working process of the present application is as follows:

[0022] In the high-power microwave radiation simulation module 1, a high-power microwave radiation system model is established, mainly simulating a high-power microwave signal with a pulse width of 10ns-100ns, a frequency coverage of 300MHz-10GHz, and a power of 1MW-1GW adjustable, which is transmitted to the electromagnetic wave transmission simulation module 2. According to the distance between the high-power microwave radiation system and the radar and the natural environment, the electromagnetic wave transmission simulation module 2 attenuates the high-power microwave signal sent by the high-power microwave radiation simulation module 1, and then transmits it to the radar simulation module 3. The radar simulation module 3 receives the high-power microwave signal radiated by the high-power microwave radiation simulation module 1, and according to the electromagnetic transmission characteristics, the microwave energy received by each sensitive key position in the radar simulation module 3 is calculated by the performance evaluation module 5. The calculated value is compared with the reference value in the key sensitive component threshold value library module 4, so as to give the influence result of the radar performance according to the quantitative calculation result. If the calculated value is greater than or equal to the reference value in the threshold value library module 4, it is judged that the sensitive device is damaged, otherwise it is judged to be normal.

[0023] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed by the present application can be easily thought by any person skilled in the art, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A radar anti-high-power microwave attack effectiveness evaluation system, characterized in that: The system comprises a high-power microwave radiation simulation module (1), an electromagnetic wave transmission simulation module (2) connected with the high-power microwave radiation simulation module (1) and the radar simulation module (3), a radar simulation module (3) connected with the electromagnetic wave transmission simulation module (2) and the performance evaluation module (5), and a performance evaluation module (5) connected with the radar simulation module and the key sensitive component threshold value library module (4). In the high-power microwave radiation simulation module (1), a high-power microwave radiation system model is established to simulate a high-power microwave signal with a pulse width of 10-100 ns, a frequency coverage of 300-10 GHz, and an adjustable power of 1 MW-1 GW, which is transmitted to the electromagnetic wave transmission simulation module (2). According to the distance between the high-power microwave radiation system and the radar and the natural environment, the electromagnetic wave transmission simulation module (2) attenuates the high-power microwave signal transmitted from the high-power microwave radiation simulation module (1) and then transmits it to the radar simulation module (3). The radar simulation module (3) receives the high-power microwave signal radiated from the high-power microwave radiation simulation module (1), calculates the microwave energy received by each sensitive key position in the radar simulation module (3) according to the electromagnetic transmission characteristics, compares the calculated value with the reference value in the key sensitive component threshold value library module (4), and then gives the influence result of the radar performance according to the quantitative calculation result. If the calculated value is greater than or equal to the reference value in the threshold value library module (4), it is judged that the sensitive device is damaged, otherwise it is judged as normal.

2. The radar anti-high power microwave attack effectiveness evaluation system according to claim 1, wherein: The high-power microwave radiation simulation module (1) simulates each type of high-power microwave radiation system, simulates a high-power microwave signal with a pulse width of 10-100 ns, a frequency coverage of 300-10 GHz, and an adjustable power of 1 MW-1 GW, and simulates a radiation beam width of 1-5° adjustable, with an antenna gain greater than or equal to 25 dB.

3. The radar anti-high power microwave attack effectiveness evaluation system according to claim 1, wherein: The electromagnetic wave transmission simulation module (2) simulates the transmission of high-power microwaves in space, including the attenuation of electromagnetic wave transmission with transmission distance, atmospheric refraction, and rain weather attenuation of electromagnetic wave.

4. The radar anti-high power microwave attack effectiveness evaluation system according to claim 1, characterized in that: The radar simulation module (3) establishes a radar three-dimensional geometric model and a radar electromagnetic wave receiving model for receiving the high-power microwave signal transmitted from the high-power microwave radiation simulation module (1) through the electromagnetic wave transmission simulation module (2).

5. The radar anti-high power microwave attack effectiveness evaluation system according to claim 1, characterized in that: The key sensitive component threshold value library module (4) collects the threshold values of electromagnetic wave damage of each sensitive key position device in the radar, which are used as reference values for the performance evaluation module (5) to evaluate the radar performance.

6. The radar anti-high power microwave attack effectiveness evaluation system according to claim 1, characterized in that: The performance evaluation module (5) collects the microwave energy values of each key point of the radar, compares the reference values in the key sensitive component threshold value library module (4), and gives the performance evaluation result of whether it is damaged.

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