A variable step-size sign algorithm for channel estimation

被引：34

作者：

Li, Yuan-Ping ^{[1
]}

Lee, Ta-Sung ^{[1
]}

Wu, Bing-Fei ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Elect & Comp Engn, Hsinchu 30010, Taiwan

来源：

SIGNAL PROCESSING | 2014年 / 102卷

关键词：

Adaptive filters; Channel estimation; Impulsive noise; Least mean square; Sign algorithm; System identification; LMS ALGORITHM; PERFORMANCE ANALYSIS; ADAPTIVE FILTER; NOISE;

D O I：

10.1016/j.sigpro.2014.03.030

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a new variable step-size sign algorithm (VSSA) for unknown channel estimation or system identification, and applies this algorithm to an environment containing two-component Gaussian mixture observation noise. The step size is adjusted using the gradient-based weighted average of the sign algorithm. The proposed scheme exhibits a fast convergence rate and low misadjustment error, and provides robustness in environments with heavy-tailed impulsive interference. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：304 / 312

页数：9

共 19 条

[1] A new class of gradient adaptive step-size LMS algorithms [J].

Ang, WP ;

Farhang-Boroujeny, B .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2001, 49 (04) :805-810

[2] Performance Analysis of the Dual Sign Algorithm for Additive Contaminated-Gaussian Noise [J].

Bang, Seung Chan ;

Ann, Souguil ;

Song, Iickho .

IEEE SIGNAL PROCESSING LETTERS, 1994, 1 (12) :196-198

[3] A robust mixed-norm adaptive filter algorithm [J].

Chambers, J ;

Avlonitis, A .

IEEE SIGNAL PROCESSING LETTERS, 1997, 4 (02) :46-48

[4] A noise resilient variable step-size LMS algorithm [J].

Costa, Marcio Holsbach ;

Bermudez, Jose Carlos Moreira .

SIGNAL PROCESSING, 2008, 88 (03) :733-748

[5]

Dash S., 2012, INT J ELECT COMPUTER, V2, P481

[6]

Diniz P.S.R., 2013, ADAPTIVE FILTERING A, V4th ed.

[7]

FarhangBoroujeny B., 1998, Adaptive Filters: Theory and Applications, V3rd ed.

[8] A VARIABLE STEP SIZE LMS ALGORITHM [J].

KWONG, RH ;

JOHNSTON, EW .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1992, 40 (07) :1633-1642

[9] IMPROVED CONVERGENCE ANALYSIS OF STOCHASTIC GRADIENT ADAPTIVE FILTERS USING THE SIGN ALGORITHM [J].

MATHEWS, VJ ;

CHO, SH .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1987, 35 (04) :450-454

[10] PERFORMANCE ANALYSIS OF ADAPTIVE FILTERS EQUIPPED WITH THE DUAL SIGN ALGORITHM [J].

MATHEWS, VJ .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1991, 39 (01) :85-91

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