標題: | An LMS-based adaptive generalized sidelobe canceller with decision feedback |
作者: | Lee, YM Wu, WR 電信工程研究所 Institute of Communications Engineering |
關鍵字: | adaptive beamforming;least-mean-square;generalized sidelobe canceller;decision feedback |
公開日期: | 2005 |
摘要: | 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. |
URI: | http://hdl.handle.net/11536/17562 |
ISBN: | 0-7803-8938-7 |
ISSN: | 1550-3607 |
期刊: | ICC 2005: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5 |
起始頁: | 2047 |
結束頁: | 2051 |
顯示於類別: | 會議論文 |