基于互复用技术的低轨通信卫星恒包络调制  

Constant envelope modulation based on interplex in LEO satellite communication system

作　　者：陈毅君[1,2] 漆庄平[2] 姜泉江[2] 梁旭文[1,2] 

机构地区：[1]中科院上海微系统与信息技术研究所,上海200050 [2]上海微小卫星工程中心,上海201203

出　　处：《电子技术应用》2013年第4期87-90,95,共5页Application of Electronic Technique

基　　金：上海市自然科学基金(12ZR1450000)

摘　　要：针对低轨卫星扩频通信系统,在下行同一信道中信号路数可变情况下,采用Interplex互复用技术进行恒包络调制研究。以3,4路信号互复用调制为例,得到调制效率、峰均比与功率比之间的关系,给出功率分配合适的选择范围。这对低轨卫星扩频通信系统中多路信号复用的恒包络调制应用有重要的指导意义。In case of LEO satellite spread spectrum communication system, the number of signals is variable on the same channel. Interplex will be studied in this paper. Based on the above study, the relationship of modulation efficiency, PAPR and power ratio are obtained. The appropriate choice of power radio is obtained in case of three signals or four signals multiplexing. The study of this paper has an important guiding significance for constant envelope combined methodologies in LEO satellite spread spectrum communication system.

关 键 词：恒包络 互复用 调制效率 峰均比 功率比 

分 类 号：TN927[电子电信—通信与信息系统]