| 一种并行的软判决引导常数模盲均衡算法 |
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| 引用本文： | 窦高奇,高俊,王平.一种并行的软判决引导常数模盲均衡算法[J].信号处理,2007,23(6):833-835. |
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| 作者姓名： | 窦高奇 高俊 王平 |
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| 作者单位： | 海军工程大学通信工程系,武汉,430033 |
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| 摘 要： | 介绍了一种常数模与软判决引导结合的盲均衡算法CMA SDD。该算法克服了CMA收敛速度慢、稳态误差大的缺点,同时可以纠正相位偏转。仿真表明,在高信噪比(SNR)条件下,两种算法的稳态均方误差相近,而CMA SDD算法的收敛速度更快;在低信噪比条件下,CMA SDD算法可以获得更快的收敛速度和更低的稳态均方误差。
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| 关 键 词： | 盲均衡算法 常数模 软判决引导 剩余码间干扰 |
| 修稿时间： | 2006年5月7日 |
A Concurrent Constant Modulus Algorithm and Soft Decision-Directed Algorithm for Blind Equalization |
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| DOU Gao-qi,GAO Jun,WANG Ping.A Concurrent Constant Modulus Algorithm and Soft Decision-Directed Algorithm for Blind Equalization[J].Signal Processing,2007,23(6):833-835. |
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| Authors: | DOU Gao-qi GAO Jun WANG Ping |
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| Abstract: | A new blind equalization based on concurrent constant modulus algorithm(CMA)and soft decision-directed(SDD) adaptation is proposed.The new algorithm(CMA SDD)demonstrates significant improvements in the convergence rates and the residu- al error after convergence compared with CMA,the carrier phase correction can be accomplished at the same time.Extensive simulation shows that compare with the concurrent CMA and DD algorithm,the proposed algorithm has the similar steady-state equalization perform- ance and faster convergence speed with high SNR,but has the better equalization performance and faster convergence speed with low SNR. |
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| Keywords: | blind equalization algorithm CMA soft decision-directed intersymbol interference |
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