Abstract: Traditional false scene jamming of SAR is invalid for SAR-GMTI system, which does not have the feature of moving targets, so a fast false scene jamming algorithm for SAR-GMTI based on moving jamming station is proposed. Through reasonable simplification of the traditional algorithm, the fast false scene jamming algorithm of matrix form is put forward. The method is proposed to take advantage of both fast false scene jamming algorithm and moving jamming station, so it can produce false scene jamming with real moving feature. It not only solves the real-time problem of traditional false scene jmming, but also produces vivid false scene jamming performance for SAR and SAR-GMTI, so it can protect ground moving targets and stationary targets at the same time. The countering performance against SAR-GMTI is analyzed by using the tri-channel interference cancelling technique. Theoretical analysis and computer simulation justify the validity and efficiency of the proposed method.

Key words: synthetic aperture radar-ground moving target indication (SAR-GMTI), deceptive jamming, false scene, moving jamming station, tri-channel interference cancelling