Improved method for synthetic aperture radar scattered wave deception jamming

This study presents an improved scattered wave jamming method for synthetic aperture radar (SAR). The jammer adjusts the time-delay and the phase of the intercepted SAR signal. Then, a false scene is created to provide an effective protection for a certain area. It requires a lower jamming power than barrage jamming and has less computational complexity than direct-path deception jamming. Based on the performance analysis of scattered wave jamming, pulse repetition intervals to delay retransmission, and a modulation centre shift are proposed as improvements to enlarge the jamming area.