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Influence of DRFM Frequency Shift Jamming on The LFM Pulse-compression Radar and Countermeasure Research

Hao Sun

Abstract

The frequency shift jamming based on digital radio frequency memory(DRFM) is a kind of new jamming technology aiming at some new system radars(such as the linear frequency modulation(LFM) pulse-compression radar).The jamming signal has more coherency with the radar transmitting signal,and the jamming modes are various and flexible,which accordingly makes the radar difficult to use the existing anti-jamming technologies.This paper analyzes the different from the parameters of jamming signal and target echo signal,extracts the true target echo information to confront with the frequency shift jamming.

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Available abstract

Key concepts: Radar jamming and deception, Digital radio frequency memory, Jamming, Pulse compression, Radar, Pulse-Doppler radar, Frequency modulation, Computer science