GMSK在跳频通信中的应用及其性能分析  

Application and performance analysis of GMSK modulation in frequency-hopping communication

作　　者：彭伟军[1] 宋文涛[1] 罗汉文[1] 

机构地区：[1]上海交通大学电子工程系,上海200030

出　　处：《通信学报》2000年第11期41-47,共7页Journal on Communications

基　　金：教育部重点学科基金资助项目

摘　　要：本文将GMSK调制引入到跳频通信中 ,以利用GMSK高频谱效率的特点在跳频通信中实现高速数据传输。首先给出了采用GMSK调制的慢跳频通信系统SFH GMSK原理与实现方法 ,提出了基本的数学模型。在此基础上 ,获得了在不同的跳频间隔长度下SFH GMSK信号的频谱图。随后给出了基于Viterbi算法的SFH GMSK信号的非相干解调方案 。In this paper,GMSK is introduced into the frequency hopping communication system to implement high rate data transmitting in frequency hopping communication The principle and system mathematic model of the SFH GMSK system is first presented and the power density spectrum of the SFH GMSK signal are obtained Then the noncoherent demodulate method based on the Viterbi algorithm is discussed The performance of this algorithm is analysed through computer numerical simulation

关 键 词：跳频通信 GMSK调制 VITERBI算法 非相干解调 

分 类 号：TN914.41[电子电信—通信与信息系统]