合成孔径雷达随行干扰信号产生方法

The Method to Produce SAR Jamming Signal Based on Moving Station

合成孔径雷达随行干扰技术能够有效地解决军事目标需要随队掩护的问题,干扰信号的实时产生是影响干扰效果的关键因素;通过对干扰原理的分析,提出了通过方位向多普勒频率补偿和距离向延时实时地产生欺骗干扰信号的方法,并且根据移动目标的特点,给出了改进后的近似散射移频计算方法,通过对干扰信号产生方法的分析、计算和仿真,证明了SAR随行干扰信号产生算法的可行性和优越性。

The technique of moving jamming station against SAR is effective to protect moving military targets. The key factor for jamming effect is how to produce jamming signals timely. After analyzing the jamming theory, we propose a method for generating deceptive signals through azimuth Doppler frequency compensation and range delay. According to the imaging characteristics of moving targets, an improved computational method to approximate scatter frequency shift is also given. The effectiveness of our method is demonstrated by numerical simulations.