Joint Design of Receive and Transmit Against Velocity Deception Jamming for Inter-Pulse Polarization-Modulated Radar

Velocity deception jamming involves actively and coherently modulating a false Doppler shift onto a pulse intercepted by a Digital Radio Frequency Memory (DRFM) to mimic the moving characteristics of a physical target (PT), leading to the loss of the target's true velocity tracking. This paper presents a study on the inter-pulse polarization modulation scheme, emphasizing the minimization of weighted Integral Sidelobe Level (ISL) of the target echo and Integral Cross-correlation Energy (ICE) of the jamming within specific stopbands, to optimize the receive filter, waveform, and polarization sequences, which achieves a tradeoff between the increased design freedom of waveforms and the complexity of polarimetric radars. Experimental results based on full-polarization data of a T-72 tank demonstrate the effectiveness of the introduced optimization of pulse polarization in significantly reducing jamming levels. Furthermore, the validation underscores the importance of considering the modulation effect on a pulse from an extended target in Signal-to-Interference plus Noise Ratio (SINR) expression