Title :
Robust Capon beamforming in presence of large DOA mismatch
Author :
Zhang, Wensheng ; Wu, Shiqian ; Wang, Jiacheng
Author_Institution :
Dept. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
In the presence of significant direction-of-arrival (DOA) mismatch, a robust Capon beamforming approach is proposed. The basic idea of the proposed method is first to estimate a set of the desired steering vectors corresponding to DOAs coming from a DOA uncertainty region by using the uncertainty set based approach, then a Bayesian approach is employed to obtain the weight vector.
Keywords :
Bayes methods; array signal processing; direction-of-arrival estimation; uncertain systems; vectors; Bayesian approach; DOA mismatch; DOA uncertainty region; direction-of-arrival mismatch; robust Capon beamforming; steering vectors; uncertainty set based approach; weight vector;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.3182
