基于子空间分解的快速盲均衡解调算法
The Blind Equalization Based on subspace method with fast convergence
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摘要: 基于高阶统计的盲均衡算法需要大量的观测数据，当观测数据有限或信道变化较快时，由于模型失配将使均衡性能严重下降，因此短数据、快收敛是近年来盲均衡技术研究的主要方向之一。本文讨论了基于子空间分解的信道识别和盲均衡技术，利用卡尔曼滤波方程，给出了一种快速收敛的盲均衡解调算法，算法只需要较少的数据样本，仿真结果表明该方法是有效的。
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关键词:
- 盲均衡; 子空间; 解调
Abstract: A large of number sample data is needed by the blind channel equalization based on HOS (High Order Statistics). The performance of equalization was found to be poor in fast change environment or with short data samples. The blind equalization using second order statistics has drawn considerable attention recently. The performance with fast convergence makes it useful in the mobile communications or short-wave communications. The algorithm for subspace method based on the blind channel identification/equalization using Kalman filter equation is presented, which needs a few data. Simulation results show that the algorithm is effective. -
Y. Sato, A method of self-recovering equalization for multilevel amplitude modulation, IEEE Trans. on Comm., 1975, COM-23(6), 679-682.[2]A. Bcnvniste, M. Goursat, Blind equalizers, IEEE Trans. on Comm., 1984, COM-32(8), 871-883.[3]D. Hatzinakos, Blind equalization using decision feedback prediction and tricepstrum principle, Signal Processing, 1994, 36(3), 261-276.[4]S. Haykin, Adaptive Filter Theory, New Jersey, Prentice-Hall, Third Edition, 1991, Ch.18.[5]L. Tong, G. Xu, T. Kailath, A new approach to blind identification and equalization of multipathchannel, Proc. of the 25th Asilomar Conference on Signals, Systems, and Computer, Pacific Grove, CA., Nov. 1991, 340-349.[6]H. Liu, G. Xu, A determinstic approach to blind symbol estimation, IEEE Signal Processing Letters, 1994, 1(12), 205-207.[7]E. Moulines.[J].P. Duhamel, J. Cardoso, S. Mayrargue, Subspace methods for the blind identification of multichannel FIR filters, ICASSP94 Adelaide, South Australia.1994,:-[8]P. Vandaele, M. Moonen, Adaptive algorithms for single user blind channel equalization, Proceedings of the Fourth IMA Conference on Mathematics in Signal Processing, Warwick, Dec. 1996,68-72.[9]罗来源,肖先赐,基于卡尔曼滤波技术的盲均衡算法,95年仪器仪表与信号处理年会文集,郑州,1995,179-184. 期刊类型引用(5)
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