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为了在电子战系统中对敌方星载合成孔径雷达(SAR)雷达进行有效干扰,文中提出了一种新颖的星载SAR欺骗式干扰信号的实时产生技术。该技术首先通过对分布式大场景的干扰调制函数的离线及分块并行计算,降低了干扰信号产生的复杂度和计算量;然后,通过实时卷积产生欺骗干扰信号,从而实现对敌方星载SAR系统的实时欺骗干扰的目的;最后,试验干扰机的测试数据和仿真结果说明了方法的有效性。结果表明:该方法不但可以提供可信赖的干扰效果,而且在实践应用中具有一定的实时性。
In order to effectively interfere with the enemy spaceborne Synthetic Aperture Radar (SAR) radar in the EW system, a novel real-time generation technique of the spoofed interference signal of the spaceborne SAR is proposed in this paper. The technique first reduces the complexity and computation of the interference signal by off-line and block-parallel calculation of the interference modulation function of the distributed large scene. Then, the deception signal is generated by real-time convolution, System real-time deceptive interference purposes; Finally, the experimental jammer test data and simulation results illustrate the effectiveness of the method. The results show that this method not only can provide reliable interference effect, but also has certain real-time performance in practical application.