Title :
Real-valued sparse representation method for DOA estimation with uniform linear array
Author :
Jisheng, Dai ; Zhen, Wu ; Zheng, Tang
Author_Institution :
Sch. of Electr. & Inf. Eng., Jiangsu Univ., Zhenjiang, China
Abstract :
This paper presents a real-valued sparse representation method for direction of arrival (DOA) estimation with uniform linear arrays (ULAs). Applying a unitary transformation, we convert the complex optimization problem into a real one, thereby reducing the computational complexity at least by a factor of four without sacrificing its accuracy. Simulation results demonstrate the effectiveness of the proposed method.
Keywords :
array signal processing; computational complexity; direction-of-arrival estimation; optimisation; signal representation; sparse matrices; DOA estimation; ULA; complex optimization problem; computational complexity; direction of arrival estimation; real-valued sparse representation method; uniform linear array; unitary transformation; Arrays; Covariance matrix; Direction of arrival estimation; Estimation; Signal to noise ratio; Sparse matrices; Vectors; Array Signal Processing; Direction-of-Arrival (DOA); Sparse Representation; Uniform Linear Array (ULA);
Conference_Titel :
Control Conference (CCC), 2012 31st Chinese
Conference_Location :
Hefei
Print_ISBN :
978-1-4673-2581-3
