电子学报2011，Vol.39Issue(6)：1353-1357,5.
基于粒子滤波的宽带信号波达方向估计
Direction of Arrival Estimation of Wideband Signal Based on Particle Filters
摘要
Abstract
This paper proposes a new methodforestimatingthedirection-of-arrival (DOA) of wideband signal, which em ploys particle filters to track array manifold at different frequency bands. Compared with the coherent signal-subspace method (CSM),the proposed method utilizes the current observed data and does not require the estimated covariance matrix, thus it performs better while considering a small sample set. In the meantime, this method does not require the pre hminary DOA estimates. Moreover, the proposed method can localize completely correlated sources as it is based on the idea of maximum likelihood. Simulation results show that the performance of the propose method is brtter than CSM when the sample set is small, the signal to noise ratio (SNR) is low and the signal sources are correlated.关键词
宽带信号/粒子滤波/DOA估计/CSMKey words
wideband signal/particle filters/DOA estimation/CSM分类
信息技术与安全科学引用本文复制引用
吴孙勇,廖桂生,杨志伟..基于粒子滤波的宽带信号波达方向估计[J].电子学报,2011,39(6):1353-1357,5.基金项目
国家杰出青年科学基金(No.60825104) （No.60825104）
国家自然科学基金项目(No.60736009,No.60901066) （No.60736009,No.60901066）
