扫频式干扰对超宽带无线电引信干扰机理

An interference waveform pattern is studied for effective interference to UWB radio fuze. An interaction model of UWB radio fuze and periodically modulated interference signal are established. Based on the signal鄄to鄄interference ratio gain, the response characteristics of the fuze are analyzed under different noises, sine鄄wave amplitude modulation signals, sine鄄wave frequency modulation (FM) signals, and swept鄄frequency sinusoidal amplitude modulation (AM) signals. The simulated results are consistent with the theoretical values and verified by laboratory static confrontation tests. The results show that the swept鄄frequency AM interference is the most effective interference mode, and sine鄄wave AM interference is the best. By reasonably setting the parameters of the frequency sweep interference, the interference effect can be effectively improved.