基于微动调制的SAR新型有源干扰方法

A Novel Method of Active Jamming for SAR Based on Micro Motion Modulation

借鉴微动调制思想,提出了一种SAR新型有源干扰方法.详细确定了各关键干扰参数,分析了干扰信号的成像结果,给出了一种基于数字射频存储技术的干扰实施方案,讨论了侦察误差对干扰效果的影响,并进行了基于实测数据的实验分析.结果表明,该干扰样式具有距离向相干处理、方位向部分相干处理的特点,可实现方位向多假欺骗的目的,是一种有效稳健的干扰方法.配合已装备或研制中的各类SAR干扰设备,可增强重要目标的防御能力和生存能力.

Using the idea of micro motion modulation for reference,a novel active jamming method is proposed for Synthetic Aperture Radar（SAR）.Several key jamming parameters are determined,the jamming image result is analyzed,an implementation procedure based on Digital Radio Frequency Memory,as well as the influence of reconnaissance errors on jamming performance,is put forward.Furthermore,simulation experiments have been done based on the raw data.The result shows that,this jamming signal is processed coherently in the range direction and partially coherently in the azimuth direction,which can produce multiple false targets in the azimuth direction.As an effective and sound jamming,this method,along with multiple equipped or developing jamming equipments,can enhance the defense and survivability for important targets.