电讯技术Issue(3)：283-288,6.DOI:10.3969/j.issn.1001-893x.2014.03.007
多径衰落信道MPSK信号超指数迭代盲解调算法
Blind Demodulation of MPSK Signals in Multipath Fading Channels Based on SEI-FSE-CMA
摘要
Abstract
To improve the performance of blind demodulation in multipath fading channels, a simple blind demodulation algorithm of Multiple Phase Shift Keying( MPSK) signals is proposed. The blind super-expo-nential iteration fractionally-spaced equalizer is introduced to achieve the time-recovery and equalization firstly. Then the carrier-frequency offset is estimated by nonlinear transformation. Finally, the second-order digital phase-locked loop is exploited to track the phase offset. Simulation results show that the algorithm ex-hibits lower bit error rate( BER) , fast convergence speed and great stability in multipath fading channels.关键词
多径衰落信道/MPSK信号/盲解调/超指数迭代/分数间隔均衡Key words
multipath fading channel/MPSK signal/blind demodulation/super-exponential iteration/frac-tionally-spaced equalizer分类
信息技术与安全科学引用本文复制引用
曲晶,张婷..多径衰落信道MPSK信号超指数迭代盲解调算法[J].电讯技术,2014,(3):283-288,6.基金项目
国家自然科学基金资助项目(61072046) （61072046）
河南省基础与前沿基金项目(1123004100322)@@@@The National Natural Science Foundation of China(No.61072046) （1123004100322）
The Basic Scientific and Technological Frontier Project of Henan Province(1123004100322) （1123004100322）
