一种新的合成孔径雷达压制干扰方法  

A New Approach of Blanket Jamming to SAR

作　　者：朱守保 罗强 童创明[2] 

机构地区：[1]第二炮兵工程大学,陕西西安710025 [2]空军工程大学导弹学院,陕西三原713800

出　　处：《现代防御技术》2012年第2期104-108,共5页Modern Defence Technology

摘　　要：首先对合成孔径雷达系统的强大抗干扰能力进行了分析与说明。然后在分析了传统调频斜率失配干扰方法和移频干扰方法的干扰效果的基础上,针对固定移频干扰只能实现点目标或线目标干扰,调频斜率失配较大时易被干扰方根据干扰信号与原信号较大的调频斜率失配特征进行反干扰的缺陷,提出一种将两者结合的方法:调频斜率失配-移频干扰。最后实验仿真证实了此种方法的有效性。Firstly, the powerful antijamming ability of synthetic aperture rador（SAR） system is analyzed and explained. Then, on the basis of analyzing traditional unmatched frequency modulation slope jamming and shift-frequency jamming, considering the disadvantages that the fixed shift frequency only can produce single fake point target or line targets and unmatched frequency modulation slope can be found if the difference between the frequency modulation slope is too big, a new approach is pointed out e： unmatched frequency modulation slope-shift frequency jamming. And finally, the effectiveness of the approach is proved by the simulations.

关 键 词：移频干扰 压制性干扰 调频斜率失配 

分 类 号：TN97[电子电信—信号与信息处理] TN958[电子电信—信息与通信工程]