A dynamic test device for strong electromagnetic pulse response characteristics of radio frequency system

Abstract

The present invention provides a dynamic testing device for the strong electromagnetic pulse response characteristics of a radio frequency system, comprising a strong electromagnetic pulse environment reconstruction system, a strong electromagnetic pulse monitoring system, a response characteristic monitoring system, and a computer. The strong electromagnetic pulse environment reconstruction system, the strong electromagnetic pulse monitoring system, and the response characteristic monitoring system are each connected to the radio frequency system under test, and the computer is each connected to the strong electromagnetic pulse environment reconstruction system, the strong electromagnetic pulse monitoring system, and the response characteristic monitoring system. The present invention can simulate the dynamic changes in the strong electromagnetic pulse energy received by the radio frequency system in the battlefield, reconstruct the simulated data, and then perform a dynamic strong electromagnetic pulse injection test on the radio frequency system, simulating the changes in the response characteristics of the radio frequency system under a strong electromagnetic pulse environment in the battlefield. The device has the advantages of simple operation and the ability to obtain the changes in the response characteristics of the radio frequency system.

Description

Technical Field

[0001] The invention relates to a dynamic testing device for strong electromagnetic pulse response characteristics of a radio frequency system, belonging to the technical field of strong electromagnetic pulse testing. Background Art

[0002] Strong electromagnetic pulse weapons are developing rapidly as a new type of weapon. However, the high radiation field of strong electromagnetic pulse weapons will affect the equipment's radio frequency system to varying degrees through the equipment's antenna, seriously threatening the normal operation and combat capability of conventional equipment. Therefore, the design of equipment's protection against strong electromagnetic pulse damage is receiving increasing attention.

[0003] Obtaining the strong electromagnetic pulse response characteristics of equipment is a prerequisite for designing equipment to resist strong electromagnetic pulse damage. Currently, testing is the main method used to obtain these characteristics. However, in real combat environments, the strong electromagnetic pulse radiation environment in which equipment is exposed changes in real time, and the strong electromagnetic pulse energy coupled to the equipment's radio frequency system also changes in real time. Because existing radio frequency system testing systems can only output strong electromagnetic pulses based on manually preset output parameters, they are unable to simulate the dynamic changes in the response characteristics of the equipment's radio frequency system after coupling with strong electromagnetic pulses in real combat environments. Therefore, existing testing systems cannot meet the requirements for dynamic testing of the strong electromagnetic pulse response characteristics of combat equipment's radio frequency system. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a dynamic testing device for the strong electromagnetic pulse response characteristics of a radio frequency system. The dynamic testing device for the strong electromagnetic pulse response characteristics of a radio frequency system has the advantages of simple operation, ability to simulate the dynamic changes of the strong electromagnetic pulse energy received by the radio frequency system in the battlefield, and ability to monitor the changes in the response characteristics of the radio frequency system in real time. It is suitable for studying the dynamic changes of the response characteristics of the radio frequency system when operating in a strong electromagnetic pulse environment.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a dynamic testing device for the strong electromagnetic pulse response characteristics of a radio frequency system, comprising a strong electromagnetic pulse environment reconstruction system, a strong electromagnetic pulse monitoring system, a response characteristic monitoring system, and a computer; the strong electromagnetic pulse environment reconstruction system, the strong electromagnetic pulse monitoring system, and the response characteristic monitoring system are respectively connected to the radio frequency system under test, and the computer is respectively connected to the strong electromagnetic pulse environment reconstruction system, the strong electromagnetic pulse monitoring system, and the response characteristic monitoring system; the strong electromagnetic pulse environment reconstruction system is provided with a strong electromagnetic pulse environment reconstruction module, the strong electromagnetic pulse monitoring system is provided with a strong electromagnetic pulse monitoring module, the response characteristic monitoring system is provided with a response characteristic monitoring module, the computer is provided with a strong electromagnetic pulse environment simulation module, a strong electromagnetic pulse environment generation and control module, and a response characteristic recording module, as well as:

[0007] Strong electromagnetic pulse environment reconstruction system: used to reconstruct the strong electromagnetic pulses required to be injected into the RF system under test during the test process;

[0008] Strong electromagnetic pulse monitoring system: used to monitor the parameters of the strong electromagnetic pulse injected into the RF system under test by the strong electromagnetic pulse environment reconstruction system during the test process;

[0009] Response characteristic monitoring system: used to monitor the changes in technical indicators of the tested RF system during the test process;

[0010] Strong electromagnetic pulse environment simulation module: used to simulate the dynamic changes of strong electromagnetic pulse parameters received by the RF system under test;

[0011] Strong electromagnetic pulse environment generation control module: used to generate control parameters for controlling the strong electromagnetic pulse environment reconstruction system based on the strong electromagnetic pulse parameters obtained by the strong electromagnetic pulse environment simulation module;

[0012] Response characteristic recording module: used to record the monitoring data recorded by the strong electromagnetic pulse monitoring system and the changes in the technical indicators of the tested RF system obtained by the response characteristic monitoring system under different strong electromagnetic pulse injections, and compare the monitored technical indicators with the design indicators of the tested RF system;

[0013] Computer: used to run the strong electromagnetic pulse environment simulation module, the strong electromagnetic pulse environment generation control module and the response characteristic recording module, control the strong electromagnetic pulse environment reconstruction system during the test and receive data from the strong electromagnetic pulse monitoring system and the response characteristic monitoring system.

[0014] The output end of the strong electromagnetic pulse environment reconstruction system is connected to the input end of the directional coupler through a coaxial cable, the output port of the directional coupler is connected to the receiving end of the radio frequency system under test through a coaxial cable, and the coupling port of the directional coupler is connected to the strong electromagnetic pulse monitoring system through a coaxial cable.

[0015] The computer is connected to the strong electromagnetic pulse environment reconstruction system, the strong electromagnetic pulse monitoring system, and the response characteristic monitoring system through a switch. The switch is used for communication between the strong electromagnetic pulse environment reconstruction system, the strong electromagnetic pulse monitoring system, the response characteristic monitoring system, and the computer.

[0016] The strong electromagnetic pulse parameters include data on changes in the strong electromagnetic pulse carrier frequency, amplitude, repetition rate, polarization direction, and pulse width over time.

[0017] In the response characteristic recording module, when the monitored technical indicators exceed the allowable range of the design indicators of the tested RF system, the response characteristics are judged as "abnormal". When the monitored technical indicators do not exceed the allowable range of the design indicators of the tested RF system, the response characteristics are judged as "normal".

[0018] The testing process of the device includes the following steps:

[0019] S1: Load the antenna pattern model of the RF system under test, the parameters of the strong electromagnetic pulse radiation source, and the attitude and distance change data of the RF system under test relative to the strong electromagnetic pulse radiation source over time into the strong electromagnetic pulse environment simulation module;

[0020] S2: Use the strong electromagnetic pulse environment simulation module to simulate and generate dynamic change data of the strong electromagnetic pulse parameters received by the RF system under test over time;

[0021] S3: Using the strong electromagnetic pulse environment generation control module to read the dynamic change data of the strong electromagnetic pulse parameters received by the radio frequency system under test generated in S2, and converting it into control parameters that can control the strong electromagnetic pulse environment reconstruction system;

[0022] S4: The control parameters received by the strong electromagnetic pulse environment reconstruction system and the time-varying waveform of the strong electromagnetic pulse obtained by the reconstruction of the strong electromagnetic pulse environment simulation module are injected into the RF system under test through a coaxial cable to perform a dynamic test of the strong electromagnetic pulse response characteristics of the RF system under test;

[0023] S5: The strong electromagnetic pulse monitoring system monitors and records the changes of the strong electromagnetic pulse injected into the RF system under test by the strong electromagnetic pulse environment reconstruction system in real time. The response characteristic monitoring system monitors and records the changes of the technical indicators of the RF system under test in real time.

[0024] S6: The response characteristic recording module reads the data recorded by the strong electromagnetic pulse monitoring system and the response characteristic monitoring system, and determines the response characteristics of the tested radio frequency system at different times.

[0025] The beneficial effects of the present invention are that it can simulate the dynamic changes of strong electromagnetic pulse energy received by the radio frequency system in the battlefield, and reconstruct the simulation data to perform a dynamic injection test of the strong electromagnetic pulse of the radio frequency system, thereby simulating the changes in the response characteristics of the radio frequency system in the strong electromagnetic pulse environment in the battlefield. It has the advantages of simple operation and the ability to obtain the changes in the response characteristics of the radio frequency system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a connection diagram of the device of the present invention;

[0027] In the figure: 1-strong electromagnetic pulse environment reconstruction system, 2-strong electromagnetic pulse monitoring system, 3-response characteristic monitoring system, 4-strong electromagnetic pulse environment simulation module, 5-strong electromagnetic pulse environment generation control module, 6-response characteristic recording module, 7-computer, 8-switch, 9-directional coupler. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0029] Example 1

[0030] like Figure 1 The device for dynamic testing of the strong electromagnetic pulse response characteristics of a radio frequency system shown in the figure includes a strong electromagnetic pulse environment reconstruction system 1, a strong electromagnetic pulse monitoring system 2, a response characteristic monitoring system 3, and a computer 7. The strong electromagnetic pulse environment reconstruction system 1, the strong electromagnetic pulse monitoring system 2, and the response characteristic monitoring system 3 are respectively connected to the radio frequency system under test, and the computer 7 is respectively connected to the strong electromagnetic pulse environment reconstruction system 1, the strong electromagnetic pulse monitoring system 2, and the response characteristic monitoring system 3. The strong electromagnetic pulse environment reconstruction system 1 is provided with a strong electromagnetic pulse environment reconstruction module, the strong electromagnetic pulse monitoring system 2 is provided with a strong electromagnetic pulse monitoring module, and the response characteristic monitoring system 3 is provided with a response characteristic monitoring module. The computer 7 is provided with a strong electromagnetic pulse environment simulation module 4, a strong electromagnetic pulse environment generation control module 5, and a response characteristic recording module 6, as well as:

[0031] The strong electromagnetic pulse environment reconstruction system 1 is used to reconstruct the strong electromagnetic pulse required to be injected into the radio frequency system under test during the test process;

[0032] Strong electromagnetic pulse monitoring system 2: used to monitor the parameters of the strong electromagnetic pulse injected into the radio frequency system under test by the strong electromagnetic pulse environment reconstruction system 1 during the test;

[0033] Response characteristic monitoring system 3: used to monitor the changes in technical indicators of the tested RF system during the test process;

[0034] Strong electromagnetic pulse environment simulation module 4: used to simulate the dynamic changes of strong electromagnetic pulse parameters received by the RF system under test;

[0035] Strong electromagnetic pulse environment generation control module 5: used to generate control parameters for controlling the strong electromagnetic pulse environment reconstruction system 1 according to the strong electromagnetic pulse parameters obtained by the strong electromagnetic pulse environment simulation module 4;

[0036] Response characteristic recording module 6: used to record the monitoring data recorded by the strong electromagnetic pulse monitoring system 2 and the changes in the technical indicators of the tested radio frequency system obtained by the response characteristic monitoring system 3 under different strong electromagnetic pulse injections, and compare the monitored technical indicators with the design indicators of the tested radio frequency system;

[0037] Computer 7: used to run the strong electromagnetic pulse environment simulation module 4, the strong electromagnetic pulse environment generation control module 5 and the response characteristic recording module 6, control the strong electromagnetic pulse environment reconstruction system 1 and receive data from the strong electromagnetic pulse monitoring system 2 and the response characteristic monitoring system 3 during the test.

[0038] The output end of the strong electromagnetic pulse environment reconstruction system 1 is connected to the input end of the directional coupler 9 through a coaxial cable, the output port of the directional coupler 9 is connected to the receiving end of the radio frequency system under test through a coaxial cable, and the coupling port of the directional coupler 9 is connected to the strong electromagnetic pulse monitoring system 2 through a coaxial cable.

[0039] The computer 7 is connected to the strong electromagnetic pulse environment reconstruction system 1, the strong electromagnetic pulse monitoring system 2, and the response characteristic monitoring system 3 through the switch 8. The switch 8 is used for communication between the strong electromagnetic pulse environment reconstruction system 1, the strong electromagnetic pulse monitoring system 2, the response characteristic monitoring system 3, and the computer 7.

[0040] The strong electromagnetic pulse parameters include data on changes in the strong electromagnetic pulse carrier frequency, amplitude, repetition rate, polarization direction, and pulse width over time.

[0041] In the response characteristic recording module 6, when the monitored technical indicators exceed the allowable range of the design indicators of the measured radio frequency system, the response characteristics are judged as "abnormal"; when the monitored technical indicators do not exceed the allowable range of the design indicators of the measured radio frequency system, the response characteristics are judged as "normal".

[0042] The testing process of the device includes the following steps:

[0043] S1: Loading the antenna pattern model of the RF system under test, the parameters of the strong electromagnetic pulse radiation source, and the attitude and distance change data of the RF system under test relative to the strong electromagnetic pulse radiation source over time into the strong electromagnetic pulse environment simulation module 4;

[0044] S2: Simulate and generate dynamic change data of the strong electromagnetic pulse parameters received by the radio frequency system under test over time through the strong electromagnetic pulse environment simulation module 4;

[0045] S3: Using the strong electromagnetic pulse environment generation control module 5 to read the dynamic change data of the strong electromagnetic pulse parameters received by the radio frequency system under test generated in S2, and converting them into control parameters that can control the strong electromagnetic pulse environment reconstruction system 1;

[0046] S4: injecting the control parameters received by the strong electromagnetic pulse environment reconstruction system 1 and the time-varying waveform of the strong electromagnetic pulse obtained by the reconstruction of the strong electromagnetic pulse environment simulation module 4 into the radio frequency system under test through the coaxial cable to perform a dynamic test of the strong electromagnetic pulse response characteristics of the radio frequency system under test;

[0047] S5: The strong electromagnetic pulse monitoring system 2 monitors and records in real time the changes in the strong electromagnetic pulses injected into the RF system under test by the strong electromagnetic pulse environment reconstruction system 1, and the response characteristic monitoring system 3 monitors and records in real time the changes in the technical indicators of the RF system under test;

[0048] S6: The response characteristic recording module 6 reads the data recorded by the strong electromagnetic pulse monitoring system 2 and the response characteristic monitoring system 3, and determines the response characteristics of the radio frequency system under test at different times.

[0049] The switch 8 realizes communication between the computer 7 and the strong electromagnetic pulse environment reconstruction system 1, the strong electromagnetic pulse monitoring system 2, and the response characteristic monitoring system 3 through the network cable, and the response characteristic monitoring system 3 receives the status data of the tested radio frequency system through the test cable.

[0050] Example 2

[0051] Taking a certain type of radar receiver as an example, the test process of the present invention is further described as follows:

[0052] A certain type of radar receiver is easily interfered by strong electromagnetic pulses of the same frequency, which manifests as a decrease in the signal-to-interference ratio. The criterion for evaluating the abnormal response of the radar receiver is that the signal-to-interference ratio is lower than 15dB. When the radar receiver is subjected to a dynamic test of the response characteristics of the strong electromagnetic pulses of the same frequency, the antenna pattern model of a certain type of radar receiver and the parameters of the strong electromagnetic pulse radiation source, including the output frequency band, output power, polarization mode and radiation source antenna pattern of the radiation source, as well as the relative posture and relative distance function between the radio frequency system and the strong electromagnetic pulse radiation source, are first loaded into the strong electromagnetic pulse environment simulation module 4; the strong electromagnetic pulse environment simulation module 4 calculates the data of the strong electromagnetic pulse energy received by the radar receiver over time according to the set parameters; the strong electromagnetic pulse environment generation control module 5 reads the data of the strong electromagnetic pulse energy received by the radar receiver over time generated by the strong electromagnetic pulse environment simulation module 4, and converts it into control parameters that can control the strong electromagnetic pulse environment reconstruction system 1; the strong electromagnetic pulse environment reconstruction system 1 reconstructs the strong electromagnetic pulse according to the received control parameters and injects it into the radar receiver through a coaxial cable. In the process, a dynamic test of the strong electromagnetic pulse response characteristics of the radar receiver is performed; the strong electromagnetic pulse monitoring system 2 then monitors and records the changes of the strong electromagnetic pulse injected into the radar receiver under test by the strong electromagnetic pulse environment reconstruction system 1 in real time, and the response characteristic monitoring system 3 monitors and records the changes of the receiver signal-to-interference ratio of the radar receiver under test in real time; the response characteristic recording module 6 reads the data recorded by the strong electromagnetic pulse monitoring system 2 and the response characteristic monitoring system 3. When the recorded receiver signal-to-interference ratio is lower than 15dB, the radar receiver response characteristics at that moment are judged as "abnormal". When the receiver signal-to-interference ratio is not lower than 15dB, the radar receiver response characteristics at that moment are judged as "normal". The test results are plotted in the same two-dimensional rectangular coordinate system, with the horizontal axis representing time, the left vertical axis representing the strong electromagnetic pulse injection power recorded by the strong electromagnetic pulse monitoring device 2, and the right vertical axis representing the radar receiver signal-to-interference ratio recorded by the response characteristic recording module 6. Data with the radar receiver response characteristics judged as "normal" are displayed in green, and data with the radar receiver response characteristics judged as "abnormal" are displayed in red.

[0053] In summary, the present invention has the advantages of simple operation, dynamic simulation of the response characteristics of the equipment's radio frequency system to the strong electromagnetic pulse environment in the battlefield where the equipment is located, automatic completion of the test, and low testing cost. It can be used for dynamic testing of the strong electromagnetic pulse response characteristics of the equipment's radio frequency system.

Claims

1. A dynamic test device for the strong electromagnetic pulse response characteristics of a radio frequency system, comprising a strong electromagnetic pulse environment reconstruction system (1), a strong electromagnetic pulse monitoring system (2), a response characteristic monitoring system (3) and a computer (7), characterized in that: The strong electromagnetic pulse environment reconstruction system (1), the strong electromagnetic pulse monitoring system (2), and the response characteristic monitoring system (3) are respectively connected to the radio frequency system to be measured, and the computer (7) is respectively connected to the strong electromagnetic pulse environment reconstruction system (1), the strong electromagnetic pulse monitoring system (2), and the response characteristic monitoring system (3); the strong electromagnetic pulse environment reconstruction system (1) is provided with a strong electromagnetic pulse environment reconstruction module, the strong electromagnetic pulse monitoring system (2) is provided with a strong electromagnetic pulse monitoring module, the response characteristic monitoring system (3) is provided with a response characteristic monitoring module, the computer (7) is provided with a strong electromagnetic pulse environment simulation module (4), a strong electromagnetic pulse environment generation control module (5), and a response characteristic recording module (6), and: Strong electromagnetic pulse environment reconstruction system (1): used to reconstruct the strong electromagnetic pulse required to be injected into the radio frequency system under test during the test process; Strong electromagnetic pulse monitoring system (2): used for monitoring the parameters of the strong electromagnetic pulse injected into the radio frequency system under test by the strong electromagnetic pulse environment reconstruction system (1) during the test process; Response characteristic monitoring system (3): used to monitor the changes in technical indicators of the RF system under test during the test process; Strong electromagnetic pulse environment simulation module (4): used to simulate the dynamic changes of strong electromagnetic pulse parameters received by the radio frequency system under test; A strong electromagnetic pulse environment generation control module (5) is used to generate control parameters for controlling the strong electromagnetic pulse environment reconstruction system (1) based on the strong electromagnetic pulse parameters obtained by the strong electromagnetic pulse environment simulation module (4); Response characteristic recording module (6): used to record the monitoring data recorded by the strong electromagnetic pulse monitoring system (2) and the changes in technical indicators of the radio frequency system under test obtained by the response characteristic monitoring system (3) under different strong electromagnetic pulse injections, and compare the monitored technical indicators with the design indicators of the radio frequency system under test; Computer (7): used to run the strong electromagnetic pulse environment simulation module (4), the strong electromagnetic pulse environment generation control module (5) and the response characteristic recording module (6), control the strong electromagnetic pulse environment reconstruction system (1) and receive data from the strong electromagnetic pulse monitoring system (2) and the response characteristic monitoring system (3) during the test process.

2. The dynamic testing device for the strong electromagnetic pulse response characteristics of a radio frequency system according to claim 1, characterized in that: The output end of the strong electromagnetic pulse environment reconstruction system (1) is connected to the input end of a directional coupler (9) via a coaxial cable, the output port of the directional coupler (9) is connected to the receiving end of a radio frequency system under test via a coaxial cable, and the coupling port of the directional coupler (9) is connected to a strong electromagnetic pulse monitoring system (2) via a coaxial cable.

3. The dynamic testing device for the strong electromagnetic pulse response characteristics of a radio frequency system according to claim 1, characterized in that: The computer (7) is connected to the strong electromagnetic pulse environment reconstruction system (1), the strong electromagnetic pulse monitoring system (2), and the response characteristic monitoring system (3) respectively through a switch (8). The switch (8) is used for communication between the strong electromagnetic pulse environment reconstruction system (1), the strong electromagnetic pulse monitoring system (2), the response characteristic monitoring system (3), and the computer (7).

4. The dynamic testing device for strong electromagnetic pulse response characteristics of a radio frequency system according to claim 1, characterized in that: The strong electromagnetic pulse parameters include data on changes in the strong electromagnetic pulse carrier frequency, amplitude, repetition rate, polarization direction, and pulse width over time.

5. The dynamic testing device for strong electromagnetic pulse response characteristics of a radio frequency system according to claim 1, characterized in that: In the response characteristic recording module (6), when the monitored technical indicators exceed the allowable range of the design indicators of the radio frequency system under test, the response characteristics are judged as "abnormal", and when the monitored technical indicators do not exceed the allowable range of the design indicators of the radio frequency system under test, the response characteristics are judged as "normal".

6. The dynamic testing device for strong electromagnetic pulse response characteristics of a radio frequency system according to claim 1, characterized in that: The testing process of the device includes the following steps: S1: Loading the antenna pattern model of the radio frequency system under test, parameters of the strong electromagnetic pulse radiation source, and data on the attitude and distance of the radio frequency system under test relative to the strong electromagnetic pulse radiation source over time into the strong electromagnetic pulse environment simulation module (4); S2: Simulating and generating dynamic change data of the strong electromagnetic pulse parameters received by the radio frequency system under test over time through the strong electromagnetic pulse environment simulation module (4); S3: Using the strong electromagnetic pulse environment generation control module (5) to read the dynamic change data of the strong electromagnetic pulse parameters received by the radio frequency system under test generated in S2 over time, and converting them into control parameters that can control the strong electromagnetic pulse environment reconstruction system (1); S4: injecting the control parameters received by the strong electromagnetic pulse environment reconstruction system (1) and the time-varying waveform of the strong electromagnetic pulse obtained by the reconstruction of the strong electromagnetic pulse environment simulation module (4) into the radio frequency system under test through the coaxial cable to perform a dynamic test of the strong electromagnetic pulse response characteristics of the radio frequency system under test; S5: The strong electromagnetic pulse monitoring system (2) monitors and records in real time the changes in the strong electromagnetic pulses injected into the radio frequency system under test by the strong electromagnetic pulse environment reconstruction system (1); the response characteristic monitoring system (3) monitors and records in real time the changes in the technical indicators of the radio frequency system under test; S6: The response characteristic recording module (6) reads the data recorded by the strong electromagnetic pulse monitoring system (2) and the response characteristic monitoring system (3), and determines the response characteristics of the radio frequency system under test at different times.

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