Title :
Maximum SINR beamforming for correlated sources
Author :
Yang, Jian ; Swindlehurst, A.
Author_Institution :
Dept. of Electr. Eng., Brigham Young Univ., Provo, UT, USA
Abstract :
We consider the signal-to-interference plus noise ratio (SINR) performance of several beamforming algorithms, taking particular account of the contribution of sources correlated with the desired signal. In addition, we derive an optimal method that maximizes SINR by combining with the desired signal estimate any components of the interference/multipaths that are correlated with it. To facilitate performance comparisons, we only consider the case where the signal directions of arrival (DOAs) are precisely known. The extension to unknown DOAs is straight-forward. Our analysis includes the first order effects of array calibration errors, and is verified by numerical simulation
Keywords :
calibration; correlation methods; direction-of-arrival estimation; interference (signal); optimisation; DOA; SINR; array calibration errors; beamforming algorithms; correlated sources; desired signal estimate; first order effects; interference/multipaths; maximum SINR beamforming; numerical simulation; optimal method; performance; signal directions of arrival; signal-to-interference plus noise ratio; Array signal processing; Calibration; Data models; Decorrelation; Direction of arrival estimation; Interference constraints; Least squares approximation; Least squares methods; Sensor arrays; Signal to noise ratio;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.480589
