机载SAR有源干扰分析与比较  

Comparative Analysis of Active Jamming to Airborne SAR

作　　者：李田[1] 彭世蕤[2] 王广学[2] 杨科锋[2] 

机构地区：[1]空军预警学院研究生管理大队,湖北武汉430019 [2]空军预警学院,湖北武汉430019

出　　处：《雷达科学与技术》2013年第5期486-491,497,共7页Radar Science and Technology

摘　　要：机载合成孔径雷达的干扰是当前电子对抗领域关注的焦点问题。在首先介绍了几种常用的SAR有源干扰方法的基础上,重点阐述了相干干扰的工作原理。然后,从压制系数出发,推算出了达到SAR压制系数条件下,不同干扰方式的功率表达式。结合仿真结果,对不同干扰方法的干扰性能进行了评估和比较。最后,针对各种干扰方法的性能优缺点,提出了综合运用多种方法对机载SAR进行有源干扰的作战策略。对机载SAR有源压制干扰的作战应用具备一定的指导意义。Nowadays the jamming to airborne SAR is a focus of interest.Several kinds of active jamming methods to SAR are introduced,with emphasis on the principle of coherent jamming.Then,starting with the suppression coefficient,the interference power expressions of different jamming methods at the same suppression coefficient.Combined with simulation,the performances of different jamming methods are assessed and compared.At the last,aiming at the advantages and disadvantages of the methods,the way of comprehensive utilization of these active jamming methods to deal with the airborne SAR is given.

关 键 词：机载SAR 压制系数 有源干扰 相干干扰 干信比 

分 类 号：TN974[电子电信—信号与信息处理] TN958[电子电信—信息与通信工程]