Fast generation Of SAR deceptive jamming signal based on inverse Range Doppler algorithm

For deceptive jamming against Synthetic Aperture Radar (SAR), generating jamming signal of large scene is difficult, due to its huge computation. However, it is acceptable to generate jamming signal in real-time but in low precision. Based on inverse Range Doppler algorithm (IRDA), a realtime deceptive jamming method for large scene is proposed in this paper. An analysis of the degradation of jamming image caused by an approximation in the method is done. Simulation results verify the rationality of the approximation and the effectiveness of this method.