Title :
A Khatri-Rao based method for DOA estimation in the presence of mutual coupling
Author :
Cao, Shenghong ; Ye, Zhongfu ; Xu, Xu
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
A Khatri-Rao (KR) product based method for direction-of-arrival (DOA) estimation using uniform linear array (ULA) in the presence of mutual coupling is presented. Based on the fact that mutual coupling matrices of ULAs can be modeled as banded complex symmetric Toeplitz matrices, a cost function with the form of KR product is derived. An alternating minimization procedure is employed to estimate the DOAs of all the radiating signals as well as the mutual coupling coefficients and the power of signals. Simulation results that demonstrate the validity of the proposed method are included.
Keywords :
Toeplitz matrices; array signal processing; direction-of-arrival estimation; minimisation; DOA estimation; KR product; Khatri-Rao based method; ULA; banded complex symmetric Toeplitz matrices; direction-of-arrival estimation; minimization procedure; mutual coupling coefficients; uniform linear array; Arrays; Calibration; Direction of arrival estimation; Estimation; Mutual coupling; Symmetric matrices; Vectors; Array Signal Processing; Direction of Arrival Estimation; Mutual Coupling;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-0045-2
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2012.6288436
