Low-level direct drive high-intensity radiation field effect test system and test method
A high-intensity radiation field and test method technology, applied in the field of electromagnetic environmental effects, can solve the problem of inapplicability of the scanning field test method
Active Publication Date: 2021-04-02
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology
[0005] The invention provides a low-level direct-driven high-intensity radiation field effect test system and method test, which can solve the problem that the high-intensity radiation field energy in the low-frequency band of the aircraft is directly coupled to the weak internal wiring harness of the aircraft, and the scanning field test method in the high-frequency band is not applicable problem, to provide experimental means for the protection design and safety evaluation of the high-intensity radiation field effect in the low-frequency band of the aircraft
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[0047] based on the following Figure 1 ~ Figure 4 , specifically explain the preferred embodiment of the present invention.
[0048] Such as figure 1 As shown, the present invention provides a low-level direct-driven high-intensity radiation field effect test system, comprising:
[0049] The radio frequency source is used to generate a low-level low-level frequency sweep signal in the low-frequency band and inject it into the aircraft body;
[0050] The current simulation circuit 2, which forms a current injection circuit, makes the surface of the aircraft body generate current distribution, and simulates plane waves irradiating the aircraft;
[0051] A signal collection device, which is used to collect test signals of the aircraft body;
[0052] a signal transmission device for transmitting the test signal to the signal processing device;
[0053] The signal processing device is used for processing the test signal.
[0054] Described radio frequency source comprises:
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The invention discloses a low-level direct-driven high-strength radiation field effect test system and a test method. A radio frequency source generates a low-level sweep frequency signal with a low frequency band and injects the signal into an aircraft body. A current simulation loop forms a current injection loop, current distribution is generated on the surface of an aircraft body, and plane waves are simulated to irradiate the aircraft. A signal acquisition device acquires in-aircraft induction current of the aircraft body, the signal transmission device transmits the in-aircraft inductioncurrent obtained through test to a signal processing device, and the signal processing device compares the in-aircraft induction current with a design threshold value for performance evaluation. Theproblem that a test method for a scanning field of a high-frequency band is not suitable due to the fact that energy of the high-frequency radiation field of the low-frequency band of the aircraft directly coupled to wiring harnesses in the aircraft is weak can be solved. The invention provides a test means for protection design and safety assessment of the high-frequency radiation field effect ofthe low-frequency band of the aircraft.
Description
technical field [0001] The invention relates to the technical field of electromagnetic environmental effects, in particular to a low-level direct-driven high-intensity radiation field effect test system and a test method. Background technique [0002] High-intensity radiation field (HIRF) is an electromagnetic environment with high radiation energy per unit area caused by human activities, mainly from high-power transmitters such as radar, radio, navigation, and broadcasting on the ground, ships, offshore platforms, or aircraft. radiation. HIRF has the characteristics of wide frequency band, high peak value, and long action time, which makes the electronic equipment in the aircraft system face potential electromagnetic damage, mainly reflected in the coupling of external strong electromagnetic fields and electronic systems, thus affecting the normal operation of key / important electronic systems of the aircraft. From the perspective of flight safety, the US Federal Airworthi...
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IPC IPC(8): G01R29/08
CPCG01R29/08
Inventor 石国昌廖意陈亚南应小俊张润俊
Owner SHANGHAI RADIO EQUIP RES INST