MQAM及MAPSK调制体制对比研究  

Contrastive Study of MQAM and MAPSK

作　　者：龙章勇[1] 卢涵宇[2] Long Zhangyong;Lu Hanyu(Nanjing Institute of Railway Technology,Nanjing 210031,China;College of Big Data and Information Engineering,Guizhou University,Guiyan 550003,China)

机构地区：[1]南京铁道职业技术学院,南京210031 [2]贵州大学大数据与信息工程学院,贵阳550003

出　　处：《科技通报》2017年第5期86-89,共4页Bulletin of Science and Technology

摘　　要：随着探测任务对数传能力的要求越来越高,采用高阶的调制通信体制成为不可避免的趋势。本文从误码性能以及对非线性信道敏感程度等两个方面对MQAM和MAPSK两种调制体制进行了详细的对比和定量分析。结果表明,MQAM和MAPSK在AWGN信道中误码性能相近,但是MQAM对非线性信道更加敏感,所以MAPSK更加适合星地通信这种典型的非线性信道情况下的通信。With the lack of spectrum resources and the demand of high rate data transmission remindpeople of using high-order modulation.This paper has compared MQAM to MAPSK with theperformance and sensitivity to nonlinear channel respectively;It shows that the performance of MQAMand MAPSK are almost the same.On the other hand,MQAM is more sensitive to nonlinear channelrelatively.In summary,MAPSK is more attractive to TT&C communication application.

关 键 词：MQAM MAPSK 非线性 

分 类 号：TN911[电子电信—通信与信息系统]