数字移动通信解调的同步设计理论  

Synchronization Design Theory of Demodulation for Digital Land Mobile Radio System

作　　者：庞沁华[1] 郭勇[1] 李卫东 

机构地区：[1]北京邮电大学无线电工程系

出　　处：《北京邮电大学学报》1995年第2期14-21,共8页Journal of Beijing University of Posts and Telecommunications

基　　金：国家"八五"重点科技攻关资助

摘　　要：研究了泛欧数字蜂窝移动通信（ＧＳＭ）系统的高斯最小移频键控调制（ＧＭＳＫ）信号的解调同步技术的设计理论；给出了非线性ＧＭＳＫ调制信号的参差正交幅度调制线性近似计算公式，解决了相关同步的理论计算；并对ＧＳＭ系统ＧＭＳＫ调制解调进行了系统仿真；用硬件实现了解调的同步运算；系统仿真及硬件实验结果证实了上述理论是正确的．Studies synchronization design theory of GMSK demodulation for GSM digital landmobile radio system. The nonlinear GMSK signal can be approximated by a linear offset QAMsignal.The theoretical calculation of the correlation synchronization technique is solved.Acomputer simulation has been presented to study the performance of GMSK MODEM. Thesvnchronization of GMSK demodulation is realized by hardware. Then,the svnchronization de-sign has been proved to be correct.

关 键 词：数字通信 数字解调 数字蜂窝 移动通信 

分 类 号：TN929.5[电子电信—通信与信息系统]