Direction-of-Arrival Estimation and Adaptive Beamforming of Wideband signal Using Frequency-Domain Processing Approaches

摘要：

A new wideband direction-of-arrival (DOA) estimation approache based on frequency-domain frequency-invariant beamformers(FDFIBs) is proposed. It is able to resolve correlated source signals and can be applicable to arrays arbitrary geometry without preliminary DOA estimate. The method of wideband adaptive beamforming based on DOA information is proposed. Beamformer of designed have constant mailobe and lower sidelobes. Numerical simulation results show that the proposed frequency-domain processing DOA estimator can provide better resolution at lower signal-to-noise ratio (SNR) and lower root-mean-square error (RMSE) of the DOA estimate compared with the existing method and LMS algorithm based on DOA information converges faster than the conventional adaptive beamforming algorithm.

关键词： estimation Adaptive Beamforming frequency-domain processing wideband signal

作者: Hongxia Wang Xianling Lu Chengsheng Pan

作者单位: Automation Department, Nanjing University of Science and Technology Nanjing, China Shenyang Ligong U School of computer science, Nanjing University of Science and Technology Nanjing, China Shenyang Ligong University Shenyang, China

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）