SAR deceptive jamming target-detection method based on multi-angle SAR images

摘要

Deceptive jamming is an effective jamming method for synthetic aperture radar (SAR). Time-delay repeater jamming, which is an important method of deceptive jamming because of its simplicity and effectiveness, can generate false targets in the SAR image and further affect the image interpretation. To detect the false target, this study first establishes the multi-angle SAR jamming signal model. Subsequently, the representations of the false targets and real targets in SAR image are analysed. Based on the aforementioned analysis, a SAR deceptive jamming target detection method based on multi-angle SAR images is proposed. Through the registration of multi-angle SAR images and the change detection, the false targets generated by the time-delay repeater jamming can be detected, and the SAR anti-jamming can be realised correspondingly. Computer simulation verifies the effectiveness of the proposed method.