基于时频分析的脉内特征分析  

Intrapulse Characteristics Analysis Based on Time-frequency Analysis

作　　者：王飞[1] 王喜鹏[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2012年第3期27-30,共4页Shipboard Electronic Countermeasure

摘　　要：雷达信号的脉内调制特征是雷达个体特征的重要体现,要对雷达信号进行分选和识别,高可信度地判别雷达属性,必须对雷达信号的脉内特征进行分析。时频分析技术特别适合非平稳信号的分析,作为一种特征提取的工具已得到较为广泛的应用。采用Wigner-Ville分布对常见的几种雷达信号进行了脉内调制方式分析,并采用MAT-LAB进行了仿真。The intrapulse modulation characteristics of radar signal are the important embodiment of radar individual characteristics, in order to sort and identify the radar signal, distinguish the radar attribute reliably,the intrapulse characteristics of radar signal must be analyzed. The time-frequency analysis technology is very suitable for the analysis of non-stable signal, and has been applied widely as a kind of tool of characteristic extraction. This paper uses Wigner-Ville distribution to perform the intrapulse modulation mode analysis for several familiar radar signals,and makes simu- lation through MATLAB.

关 键 词：时频分析 脉内调制 WIGNER-VILLE分布 

分 类 号：TN971.1[电子电信—信号与信息处理]