卫星通信中的高阶调制技术研究  

Research on high order modulation for catellite communications

作　　者：张曼倩[1] 刘健[1] 杨博[1] 邹光南[1] 

机构地区：[1]航天恒星科技有限公司,北京100086

出　　处：《电子设计工程》2014年第21期114-117,共4页Electronic Design Engineering

摘　　要：总结了卫星通信协议GMR-1、DVB中的高阶调制技术,研究了16QAM、16APSK、32APSK调制原理,分析了卫星信道模型,利用Matlab分别搭建AWGN信道和Rician-K信道下各高阶调制信号的收发,得到不同的调制方式在不同信道或在不同衰落因子同一信道下的误码性能。本文的仿真结果对实际卫星通信系统采用高阶调制技术有着一定的借鉴意义。In this paper we sum up the high order modulation technology for the satellite communication protocol GMR-1 and DVB, study the principle of 16QAM, 16APSK, 32APSK modulation, analyze the satellite channel models, build AWGN channel and Rician-K channel by using Matlab that simulate the transceiver of these high order modulation signals and acquire different modulation error performance results under different channel environment, The simulation result has a certain significance on the actual satellite communication systems which adopt higher order modulation technology.

关 键 词：卫星通信 高阶调制 衰落信道 误码性能 

分 类 号：TN91[电子电信—通信与信息系统]