A Countering Technique for LFM PC Radar Against Shift-frequency Jamming

The receiver output signal of both the target return signal and the false target return signal of shift-frequency jamming is deduced and the characteristic parameter of the false target return signal of shift-frequency jamming is picked out.In this paper,a method of countering shift-frequency jamming is proposed,which adopts the digital techniques for wideband receivers to process the received signals to estimate the characteristic parameter,and obtains the real range of target by compensating the range of shift-frequency jamming.Finally,some issues related to the implementation of the method of countering shift-frequency jamming are discussed.