Robust novel EM-based direction-of-arrival estimation technique for wideband source signals
Document Type
Conference Proceeding
Publication Date
7-1-2010
Abstract
Direction-of-arrival (DOA) estimation for wideband source signals using near-field acoustic sensor networks has been drawing a lot of research interest recently. A wide variety of DOA estimation approaches are based on the predominant maximum-likelihood objective. In this paper, we would like to tackle with the DOA estimation problem based on the realistic assumption where the sources are corrupted by spatially non-white noises. We explore the respective limitations of two popular DOA methods for solving this problem, namely the SC-ML and AC-ML algorithms, and design a new expectation maximization (EM) algorithm. Through Monte Carlo simulations, it is demonstrated that our proposed EM algorithm outperforms the SC-ML and AC-ML methods in terms of the DOA accuracy. © 2010 IEEE.
Publication Source (Journal or Book title)
2010 WRI International Conference on Communications and Mobile Computing, CMC 2010
First Page
72
Last Page
76
Recommended Citation
Lu, L., Wu, H., & Huang, S. (2010). Robust novel EM-based direction-of-arrival estimation technique for wideband source signals. 2010 WRI International Conference on Communications and Mobile Computing, CMC 2010, 3, 72-76. https://doi.org/10.1109/CMC.2010.324