基于Simulink的GMSK调制信号分析  

GMSK Modulation Signal Analysis Based on Simulink

作　　者：张瑾 袁韵洁[1] 蔡晓磊 杨玉婷 ZHANG Jin;YUAN Yun-jie;CAI Xiao-lei;YANG Yu-ting(Xi'an Electronic Engineering Research Institute,Xi'an 710100,China)

机构地区：[1]西安电子工程研究所,陕西西安710100

出　　处：《通信电源技术》2020年第4期39-41,共3页Telecom Power Technology

摘　　要：随着无线通信环境越来越复杂,在无线传输过程中会对传输信号进行信道编码、调制等处理,以增强信号在传输过程中对干扰、噪声等的抵抗能力,减少传输误码。本文通过研究GMSK调制信号,运用Simulink对比分析了信息在传输过程GMSK调制有无信道编码,以及它们在不同信道下对信息传输误码率的影响。仿真结果证明,在传输信息很长的情况下(> 10^4),GMSK加LDPC信道编码达到的传输效果最好,传输误码率最小。With the wireless communication environment becomes more and more complex,channel coding and modulation are carried out for the transmitted signals in the wireless transmission process,so as to enhance the resistance of signals to interference and noise in the transmission process and reduce transmission error. This paper uses Simulink to compare and analyze whether GMSK modulation has channel coding in the transmission process of information,and their effects on the error rate of information transmission in different channels by studying GMSK modulation signals. The simulation results show that GMSK+LDPC channel coding achieves the best transmission effect and the minimum bit error rate in the case of long transmission information(> 10^4).

关 键 词：GMSK调制 SIMULINK 信道编码 误码率 

分 类 号：TN911.3[电子电信—通信与信息系统]