用平均法实现瞬态信号接收中的直达波抑制  

Using of mean-subtraction method to suppress the direct wave in instantaneous signal receiving

作　　者：高守传[1] 粟毅[1] 黄春琳[1] 李禹[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《系统工程与电子技术》2004年第1期21-25,共5页Systems Engineering and Electronics

基　　金：国家"863"高技术计划项目资助课题(2001AA132020)

摘　　要：在瞬态信号接收中,收发天线耦合(直达波)构成了主要干扰形式。去除直达波对表层穿透雷达(sur facepenetratingradar,SPR)系统的信号处理起着重要的作用。根据具体的SPR系统及其工作条件、信号处理的特定要求,采用平均抵消法去除直达波。理论分析与试验证明了该方法的有效性,同时对该方法在工程应用中的局限性进行了分析。The suppression of the direct wave is very important for the surface penetrating radar signal processing. To our special system, according to its work condition, request of the signal processing, the mean-subtraction method is employed to suppress the direct wave. The restriction of the method to the engineering application is demonstrated, but validity of the method is proved by theory analyzsis and experimentations.;

关 键 词：表层穿透雷达 干扰抑制 雷达散射 

分 类 号：TN957.513[电子电信—信号与信息处理]