Title
A new DOA estimation technique based on subarray beamforming
Abstract
A new direction-of-arrival (DOA) estimation technique using subarray beamforming is proposed. Two virtual subarrays are used to form a signal whose phase relative to the reference signal is a function of the DOA. The DOA is then estimated based on the computation of the phase shift between the reference signal and its phase-shifted version. Since the phase-shifted reference signal is obtained after interference rejection through beamforming, the effect of cochannel interference on the estimation is significantly reduced. The proposed technique is computationally simple, and the number of signal sources detectable is not bounded by the number of antenna elements used. Performance analysis and extensive simulations show that the proposed technique offers significantly improved estimation resolution, capacity, and accuracy relative to existing techniques
Year
DOI
Venue
2006
10.1109/TSP.2006.877653
IEEE Transactions on Signal Processing
Keywords
Field
DocType
direction of arrival,signal detection,phase shift
Noise reduction,Beamforming,Signal processing,Detection theory,Control theory,Algorithm,Antenna array,Speech recognition,Interference (wave propagation),Estimation theory,Mathematics,Phase (waves)
Journal
Volume
Issue
ISSN
54
9
1053-587X
Citations 
PageRank 
References 
19
0.99
13
Authors
3
Name
Order
Citations
PageRank
Nanyan Y. Wang1262.29
Panajotis Agathoklis2190.99
A. Antoniou326730.79