Title
Efficient Reduced-Rank DOA Estimation Algorithms Using Alternating Low-Rank Decompositions.
Abstract
In this work, we propose an alternating low-rank decomposition (ALRD) approach and novel subspace algorithms for direction-of-arrival (DOA) estimation. In the ALRD scheme, the decomposition matrix for rank reduction is composed of a set of basis vectors. A low-rank auxiliary parameter vector is then employed to compute the output power spectrum. Alternating optimization strategies based on recursive least squares (RLS), denoted as ALRD-RLS and modified ALRD-RLS (MARLD-RLS), are devised to compute the basis vectors and the auxiliary parameter vector. Simulations for large sensor arrays with both uncorrelated and correlated sources are presented, showing that the proposed algorithms are superior to existing techniques.
Year
Venue
Field
2016
arXiv: Information Theory
Mathematical optimization,Matrix (mathematics),Algorithm,Uncorrelated,Spectral density,Subspace algorithms,Basis (linear algebra),Recursive least squares filter,Mathematics
DocType
Volume
Citations 
Journal
abs/1604.04321
0
PageRank 
References 
Authors
0.34
10
4
Name
Order
Citations
PageRank
Yunlong Cai18611.26
Linzheng Qiu2151.17
Rodrigo C. de Lamare31461179.59
Minjian Zhao411827.18