混响室条件下雷达电磁辐照效应研究

Research on Radiation Effects to Radar in Reverberation Chamber

选择一小型雷达作为受试设备,在混响室内进行了微波辐照效应研究。结果表明:一定场强条件下,雷达产生显示延迟,甚至丧失了探测能力。确定了混响室内雷达的辐射损伤阈值低于20V/m。结合雷达工作原理分析可知,雷达显示结果滞后于实际目标物,是由于辐射干扰延长了雷达回波延迟时间,从而使其与参考码延迟时间不符引起的。

The effects of microwave irradiation on a certain radar are studied in a reverberation chamber. Experiments show that electromagnetic irradiation can make radar delay behind the real target,even lost the detectability. The damaged and susceptibility threshold values which is below 20 V / m for microwave irradiation on the radar under test are determined.Combined radar operation analysis,radar displays lag behind the real target was extended due to radiation interference radar echo delay time,and thereby it does not match with the reference code.