Research on the Sensitivity of Airborne Radio Station in Electromagnetic Reverberation Chamber High-intensity Radiation Fields

Abstract

As the typical airborne equipment, it is of great significance to study the radiation effects of airborne radio station in high intensity radiation fields (HIRF). In order to solve the problems about quickly construct, rapidly adjust and effective testing of airborne equipment sensitivity in reverberation chamber high-intensity radiation field environment, a helicopter airborne radio station was used as a test subject in the reverberation chamber high-intensity radiation field radiation sensitivity test system in the frequency band of 400 MHz to 2 GHz, the typical fault type and sensitivity threshold of the test equipment were respectively determined in different working modes of the reverberation chamber by changing the electric field strength. The results show that the sensitivity threshold of the airborne radio station can be measured more easily in agitator continuous mode than step-by-step operation mode under the same conditions as the test environment field. In continuous working mode, the sensitivity threshold of the airborne radio station will decrease with the stirring speed. The faster the stirring speed, the lower the sensitivity threshold. And the tested results of sensitivity threshold will decrease with the increase of pulse width.

Keywords

• reverberation chamber
• high-intensity radiation fields
• airborne radio station
• sensitivity threshold
• testing method