Multiple false target jamming against wideband linear frequency modulated signal

摘要

For jamming against wideband linear frequency modulated(LFM) signal, a kind of multiple false target jamming approach is proposed, which is based on the fractional Fourier channelization. When the jamming samples being acquired, the desired wideband LFM signal samples can be concentrated into one output channel of the fractional Fourier channelized receiver, thereby the integrity and selectivity of jamming samples are guaranteed. Meanwhile, the storage requirement of the digital radio frequency memory(DRFM) system is reduced. The principle of the proposed jamming method and the distribution feature of the false targets are analyzed theoretically. At the last, the effect of the proposed jamming approach is verified by simulations.