基于时频分布的跳频信号分析研究  

Frequency-Hopped Signal Analysis Based on Time-frequency Distribution

作　　者：马潇[1] 许荣庆[1] 

机构地区：[1]哈尔滨工业大学,通信与信息系统专业哈尔滨150001

出　　处：《传感技术学报》2007年第3期636-639,共4页Chinese Journal of Sensors and Actuators

摘　　要：利用时频分布中的三种不同的方法——短时傅立叶变换、小波变换和Wigner-Ville分布进行跳频信号分析,通过理论研究和仿真分析表明,三种方法均可以较好的展示跳频信号的时频特征,同时分析出各自的优缺点,进而证明了每种方法应用于跳频信号分析研究工程应用的可行性.Three different methods of time-frequency distribution, Short Time Fourier Transform, Wavelet Transform and Wigner-Ville Distribution are applied to analysis of frequency-hopped signal, through the theory study and emulations analysis it reflects that the three methods can show frequency characteristics of frequency-hopped signal, obtain each method＇s pros and cons, and prove the feasibility of their application in the frequency-hopped signal analysis.

关 键 词：跳频信号 短时傅立叶变换 小波变换 WIGNER-VILLE分布 

分 类 号：TN911.7[电子电信—通信与信息系统]