西南交通大学学报（英文版）2005，Vol.13Issue(1)：28-34,7.
Novel Adaptive Beamforming Algorithm Based on Wavelet Packet Transform
Novel Adaptive Beamforming Algorithm Based on Wavelet Packet Transform
摘要
Abstract
An analysis of the received signal of array antennas shows that the received signal has multi-resolution characteristics, and hence the wavelet packet theory can be used to detect the signal. By emplying wavelet packet theory to adaptive beamforming, a wavelet packet transform-based adaptive beamforming algorithm (WP-ABF) is proposed . This WP-ABF algorithm uses wavelet packet transform as the preprocessing, and the wavelet packet transformed signal uses least mean square algorithm to implement the adaptive beamforming. White noise can be wiped off under wavelet packet transform according to the different characteristics of signal and white under the wavelet packet transform. Theoretical analysis and simulations demonstrate that the proposed WP-ABF algorithm converges faster than the conventional adaptive beamforming algorithm and the wavelet transform-based beamforming algorithm. Simulation results also reveal that the convergence of the algorithm relates closely to the wavelet base and series; that is, the algorithm convergence gets better with the increasing of series, and for the same series of wavelet base the convergence gets better with the increasing of regularity.关键词
Adaptive beamforming/Wavelet packet transform/Multi-resolution analysis/Array signal processingKey words
Adaptive beamforming/Wavelet packet transform/Multi-resolution analysis/Array signal processing分类
社会科学引用本文复制引用
Zhang Xiaofei,Xu Dazhuan..Novel Adaptive Beamforming Algorithm Based on Wavelet Packet Transform[J].西南交通大学学报（英文版）,2005,13(1):28-34,7.基金项目
The Natural Science Foudation of Jiangsu Province (No.BK2003089). （No.BK2003089）
