An LMS-based adaptive generalized sidelobe canceller with decision feedback

Yinman Lee; Wen-Rong Wu

doi:10.1109/ICC.2005.1494698

An LMS-based adaptive generalized sidelobe canceller with decision feedback

Yinman Lee^*, Wen-Rong Wu

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

Conventional least-mean-square (LMS) based adaptive generalized sidelobe canceller (GSC) suffers from the slow convergence problem. When the environment is fast varying, the conventional GSC cannot perform satisfactorily. In this paper, we propose a new decision feedback (DF) technique to overcome this problem. The proposed algorithm introduces a feedback filter with one tap weight in the GSC structure. The Wiener solution for the proposed structure is derived and the convergence behavior of the adaptive DF-GSC is also analyzed. Simulation results show that the proposed structure can significantly accelerate the convergence and enhance the overall performance.

Original language	English
Pages (from-to)	2047-2051
Number of pages	5
Journal	IEEE International Conference on Communications
Volume	3
DOIs	https://doi.org/10.1109/ICC.2005.1494698
State	Published - 12 Sep 2005
Event	2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of Duration: 16 May 2005 → 20 May 2005

Keywords

Adaptive beamforming
Decision feedback
Generalized sidelobe canceller
Least-mean-square

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10.1109/ICC.2005.1494698

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title = "An LMS-based adaptive generalized sidelobe canceller with decision feedback",

abstract = "Conventional least-mean-square (LMS) based adaptive generalized sidelobe canceller (GSC) suffers from the slow convergence problem. When the environment is fast varying, the conventional GSC cannot perform satisfactorily. In this paper, we propose a new decision feedback (DF) technique to overcome this problem. The proposed algorithm introduces a feedback filter with one tap weight in the GSC structure. The Wiener solution for the proposed structure is derived and the convergence behavior of the adaptive DF-GSC is also analyzed. Simulation results show that the proposed structure can significantly accelerate the convergence and enhance the overall performance.",

keywords = "Adaptive beamforming, Decision feedback, Generalized sidelobe canceller, Least-mean-square",

author = "Yinman Lee and Wen-Rong Wu",

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doi = "10.1109/ICC.2005.1494698",

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T1 - An LMS-based adaptive generalized sidelobe canceller with decision feedback

AU - Lee, Yinman

AU - Wu, Wen-Rong

PY - 2005/9/12

Y1 - 2005/9/12

N2 - Conventional least-mean-square (LMS) based adaptive generalized sidelobe canceller (GSC) suffers from the slow convergence problem. When the environment is fast varying, the conventional GSC cannot perform satisfactorily. In this paper, we propose a new decision feedback (DF) technique to overcome this problem. The proposed algorithm introduces a feedback filter with one tap weight in the GSC structure. The Wiener solution for the proposed structure is derived and the convergence behavior of the adaptive DF-GSC is also analyzed. Simulation results show that the proposed structure can significantly accelerate the convergence and enhance the overall performance.

AB - Conventional least-mean-square (LMS) based adaptive generalized sidelobe canceller (GSC) suffers from the slow convergence problem. When the environment is fast varying, the conventional GSC cannot perform satisfactorily. In this paper, we propose a new decision feedback (DF) technique to overcome this problem. The proposed algorithm introduces a feedback filter with one tap weight in the GSC structure. The Wiener solution for the proposed structure is derived and the convergence behavior of the adaptive DF-GSC is also analyzed. Simulation results show that the proposed structure can significantly accelerate the convergence and enhance the overall performance.

KW - Adaptive beamforming

KW - Decision feedback

KW - Generalized sidelobe canceller

KW - Least-mean-square

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DO - 10.1109/ICC.2005.1494698

M3 - Conference article

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SN - 0536-1486

VL - 3

SP - 2047

EP - 2051

JO - IEEE International Conference on Communications

JF - IEEE International Conference on Communications

T2 - 2005 IEEE International Conference on Communications, ICC 2005

Y2 - 16 May 2005 through 20 May 2005

ER -

An LMS-based adaptive generalized sidelobe canceller with decision feedback

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Keywords

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