Impact Analysis of Deceptive Jamming on Azimuth Scanning Multi-mode SAR

Detective jamming is one of the main methods of SAR active jamming. After intercepting SAR signals, jammers generate deceptive point targets or scene targets by methods of 2-D convolution modulation to forward echo. The existing jamming system research is usually limited to strip SAR, but deceptive jamming has different characteristics in multi-mode SAR. Based on the azimuth scanning multi-mode SAR signal model and the jamming signal model, this paper describes the special time-frequency relation leading to different effects, and verifies the analysis results through simulation experiments.