基于Morlet小波脊线的调频遥测信号识别与解调  

FM Telemetry Signal Recognition and Demodulation Based on Morlet Wavelet Ridge

作　　者：郭力闻 柳振民 常祥威 GUO Liwen;LIU Zhenmin;CHANG Xiangwei(Xichang Satellite Launch Center,Xichang 615000,China)

机构地区：[1]西昌卫星发射中心,四川西昌615000

出　　处：《兵器装备工程学报》2019年第S02期188-191,235,共5页Journal of Ordnance Equipment Engineering

摘　　要：利用小波脊方差曲线,实现了码速率估计、码同步和调制进制识别。仿真结果表明,二进制调频遥测信号在选取Morlet小波cmor系数取7-7或9-9时,能够得到清晰的小波脊线,实现符号判别。The optical wavelet basis function selection and ridge extraction for FM telemetry signals are studied,and the code rate estimation,code synchronization and modulation based recognition are realized by using the wavelet ridge variance curve.The simulation results show that when the cmor coefficient of Morlet wavelet is selected as 7-7 or 9-9,a clear wavelet ridge line can be obtained and symbol discrimination can be realized.

关 键 词：PCM/FM信号 信号识别 解调 小波变换 小波脊线 

分 类 号：TJ06[兵器科学与技术—兵器发射理论与技术]