SAR interfering based on fast simulation of SAR raw signal

Nowadays, synthetic aperture radar (SAR), with the features of all-weather and day and night imaging, are more and more widely used in military reconnaissance, and therefore, its electronic counter measures (ECM) attracts more and more attention. Due to the particularity of SAR, it is difficult for the traditional jamming techniques to work in interfering SAR. In this paper, the features of SAR ECM are analyzed, the technical scheme and the concerned technology for implementing active decoying interference to SAR with fast simulation methods of SAR raw signal, which is equivalent to the corresponding imaging algorithms in computational efficiency, are discussed. The SAR decoying interference technique based on fast simulation of SAR raw signal unifies the jamming interference and the decoying interference in SAR imagery domain, while relates the SAR ECM with SAR fast imaging algorithm from the perspective of SAR signal processing.