T/4 coherent integration fractionally spaced multi-modulus blind equalization algorithm

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (32): 113-116.

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T/4 coherent integration fractionally spaced multi-modulus blind equalization algorithm

HAN Yingge1, GONG Xiuli1, GUO Yecai1，2

1.Department of Electrical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China
2.Nanjing University of Information Science & Technology, Nanjing 210044, China

Online:2012-11-11 Published:2012-11-20

T/4相干累积分数间隔多模盲均衡算法

韩迎鸽1，龚秀丽1，郭业才1，2

1.安徽理工大学电气工程系，安徽淮南 232001
2.南京信息工程大学，南京 210044

Abstract

Abstract: Aiming at the problem of convergence difficulty and the big residue Mean Square Error（MSE） existed in high-order QAM signal equalization, this paper proposes the Coherent Integration based T/4 Fractionally Spaced Multi-Modulus blind equalization Algorithm（CIFSMMA） on the basis of analyzing the Multi-Modulus blind equalization Algorithm（MMA）, T/4 Fractionally Spaced Multi-Modulus blind equalization Algorithm（FSMMA） and coherent integration algorithm. The underwater acoustic channel simulation results with 128QAM signal show that the convergence speed of the proposed algorithm is faster, the steady-state error is smaller and the eye pattern is more clear.

Key words: blind equalization, fractionally spaced equalizer, coherent integration, multi-modulus, convergence speed, steady-state error

摘要： 针对高阶QAM信号均衡普遍存在收敛困难、收敛后稳态误差大的问题。在对分数间隔结构、多模和相干累积算法分析的基础上，提出了一种基于相干累积的分数间隔多模盲均衡算法。水声信道128QAM信号仿真结果表明，该算法具有更快的收敛速度、更小的稳态误差，眼图睁开更加清晰。

关键词: 盲均衡, 分数间隔均衡器, 相干累积, 多模, 收敛速度, 稳态误差

HAN Yingge1, GONG Xiuli1, GUO Yecai1，2. T/4 coherent integration fractionally spaced multi-modulus blind equalization algorithm[J]. Computer Engineering and Applications, 2012, 48(32): 113-116.

韩迎鸽1，龚秀丽1，郭业才1，2. T/4相干累积分数间隔多模盲均衡算法[J]. 计算机工程与应用, 2012, 48(32): 113-116.

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T/4 coherent integration fractionally spaced multi-modulus blind equalization algorithm

T/4相干累积分数间隔多模盲均衡算法

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