Cognitive waveform design for anti-velocity deception jamming with adaptive initial phases

Abstract

A new cognitive radar waveform design strategy is outlined to counter the velocity deception jamming based on adaptive initial phases. The kernel is to adapt the Doppler spectrum of radar echo with jamming power suppressed in some stopbands, where the true targets exist. Meanwhile, a multi-channel processing trick with different integral multiple pulse repetition interval (PRI) delay is employed to estimate the parameters of true and false targets, especially the lagged PRI number of DRFM repeat-back jammer which fakes the false targets. Simulation results of the jamming suppression and multi-channel processing-based parameter cognition demonstrate the effectiveness and feasibility of our proposed scheme.