Title :
Low-complexity 2D central DOA estimation of coherently distributed noncircular sources using an L-shaped antenna array
Author :
Xuemin Yang ; Zhi Zheng ; Lang Zhong ; Guangjun Li
Author_Institution :
Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A new algorithm using modified propagator for two-dimensional (2D) central DOA estimation of coherently distributed (CD) noncircular (NC) sources impinging on the L-shaped array structured by two uniform linear arrays (ULAs) is proposed. Without the computationally intensive and time-consuming estimation of sample covariance matrix and eigendecomposition process, the proposed algorithm estimates the central azimuth and elevation direction-of-arrivals (DOAs) independently with a one-dimensional (1D) parameter estimation. The effectiveness of proposed algorithm and the theoretical analysis are verified through numerical experiments.
Keywords :
covariance matrices; direction-of-arrival estimation; eigenvalues and eigenfunctions; linear antenna arrays; 2D central DOA estimation; L-shaped antenna array; ULA; central azimuth; coherently distributed noncircular sources; covariance matrix; eigendecomposition process; elevation direction-of-arrivals; modified propagator; one-dimensional parameter estimation; two-dimensional central DOA estimation; uniform linear arrays; Arrays; Azimuth; Direction-of-arrival estimation; Estimation; Vectors; 2D parameter estimation; Coherently distributed source; L-shaped antenna array; Noncircular signal;
Conference_Titel :
Communication Problem-Solving (ICCP), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-4246-6
DOI :
10.1109/ICCPS.2014.7062268
