非协作通信中滚降系数差异对MPSK接收性能影响的仿真分析

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摘要研究了非协作MPSK通信系统中，在接收端理想接收情况下，收/发端根升余弦滤波器滚降系数不匹配和滤波器阶数不同对接收端误符号率性能的影响。仿真结果表明，在发送端根升余弦滤波器滚降系数未知的情况下，将接收端根升余弦滤波器的滚降系数设置为0．4~0．6对接收误符号率的影响最小。另外，增加接收端根升余弦滤波器的阶数并不能带来接收误符号率性能的明显改善，且会增加实现复杂度。

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	刘伟辉
	胡名桥
	向勇

关键词 ：非协作通信系统, MPSK, 根升余弦滤波器, 误符号率

Abstract： The Symbol Error Rate (SER) performance of the non-cooperative MPSK communication system with mismatched roll-off factor of the transmitting and receiving square root raised-cosine (SRRC) filter is studied．Simulation results show that without the prior knowledge of the transmitting roll-off factor，the optimum receiving roll-off factor with minimal performance degradation ranges from 0．4 to 0．6．Furthermore，only insignificant performance improvement can be achieved by using higher order receiving SRRC filter with higher implementation complexity．

Key words：　non-cooperative communication system MPSK square root raised-cosine (SRRC) filter Symbol Error Rate (SER)

收稿日期: 1900-01-01 年卷期日期: 2010-03-10 出版日期: 2010-03-10

引用本文:

刘伟辉　胡名桥　向　勇. 非协作通信中滚降系数差异对MPSK接收性能影响的仿真分析[J]. , 2010, 1(03): 38-40.
Liu Weihui　Hu Mingqiao　Xiang Yong. The Simulation Analysis of the Effects of Mismatched Roll-off Factor on the Receiving Performance of MPSK Signals in Non-cooperative Communications. , 2010, 1(03): 38-40.

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https://www.computertelecom.com.cn/CN/ 或 https://www.computertelecom.com.cn/CN/Y2010/V1/I03/38