海战场雷达末制导系统抗干扰技术研究

Research on Anti-jamming Technology of Radar Terminal Guidance System in Naval Battlefield

为提升反舰导弹雷达末制导系统在复杂海战场环境下的精确制导能力,对国外先进雷达系统的抗干扰技术发展现状进行了分析;对海杂波的干扰特性进行了研究,提出了对抗海杂波干扰的一种自适应匹配滤波算法;分析了有源压制干扰的作用机理,提出了捷变频技术与跟踪噪声技术两种对抗方法;研究了箔条冲淡干扰与质心干扰样式,分别提出了高多普勒分辨率对抗方法与双角度波门对抗方法;对舰载欺骗干扰方式进行了分析,提出重频与载频同时捷变频、双波门跟踪对抗方式;研究了舷外有源干扰的使用方法,提出了一种空域抗干扰方法;理论分析表明,以上方法可使反舰导弹有效的对抗海战场环境下面临的海杂波、有源压制干扰、箔条干扰、舰载欺骗干扰与舷外有源干扰。

In order to improve the precision guidance capability of the anti-ship missile radar terminal guidance system in the complex naval battlefield environment,the development status of anti-jamming technology of foreign advanced radar systems is analyzed;an adaptive matched filter algorithm is proposed by studying the characteristics of sea clutter;the mechanism of active suppression interference is analyzed,frequency agility technology and tracking noise technology were proposed;chaff dilution interference and centroid interference styles are studied to propose high Doppler resolution countermeasure method and dual-angle wave gate countermeasure method;by analyzing the shipboard deception jamming,the repetition frequency and carrier frequency,double wave gate tracking countermeasure method are proposed;a method of airspace anti-jamming was proposed by studying outboard active jamming;theoretical analysis shows that the above method can effectively combat sea clutter,active suppression jamming,chaff jamming,ship-borne deception jamming and outboardj amming.