频域法在雷达信号PRI特征分析中的应用  

The Research on Applying Frequency Field Method to PRI's Feature Analysis of Radar Signal

作　　者：陈婷[1] 罗景青[1] 柳霆[2] 

机构地区：[1]解放军电子工程学院,安徽合肥230037 [2]解放军西安通信学院,陕西西安710106

出　　处：《火力与指挥控制》2008年第7期24-27,共4页Fire Control & Command Control

基　　金：国家“863”基金资助项目(2005AA775020)

摘　　要：由于雷达信号PRI参数是由其脉冲到达时间TOA导出的,所以分析PRI特性可以转化到对TOA的频域特性分析上去;频域法在对雷达信号PRI特征进行分析时不存在一般直方图法中的宽度设置等问题,再加上其自身的特点使得这种方法在理论分析和实际应用中均具有很大优势。最后通过仿真实例验证了此法的正确性和有效性,并对各种不同情况下的效果进行了分析。The value of PRI can be educed by TOA of radar signal, so the feature of PRI can be gained from the frequency field analysis results of TOA. The problem such as width setting in common histogram method can be overcome by frequency field method in PRI＇s feature analysis, and adding this method＇s own traits which make it have a merit not only in theory analysis but in practical application. The validity of this method is testified through simulation examples, and its performance under different circumstances is also analyzed.

关 键 词：FFT 特征提取 TOA PRI 

分 类 号：TN97[电子电信—信号与信息处理]