NDLI: DOA estimation of many W-disjoint orthogonal sources from two mixtures using DUET

Content Provider	IEEE Xplore Digital Library
Author	Rickard, S. Dietrich, F.
Copyright Year	2000
Description	Author affiliation: Princeton Univ., NJ, USA (Rickard, S.)
Abstract	A novel direction of arrival (DOA) technique is presented which constructs estimates of the relative delay mixing parameters associated with each signal by taking the ratio of time-frequency representations of two mixtures. The technique is based on the degenerate unmixing and estimation technique (DUET) (Jourjine et al., Proc. ICASSP 2000, June 5-9, 2000, Istanbul, Turkey). If the sources are W-disjoint orthogonal, meaning that only one signal is active in the time-frequency plane at a given time-frequency, then the ratio only depends on the mixing parameters of one source. The ratio can thus be used to generate estimates of the mixing parameters and these estimates can be clustered to determine both the number of sources present in the mixtures and their associated mixing parameters. The method allows for the estimation of the DOA for many sources using only two receive antennas, whereas traditional techniques require N antennas to estimate N-1 angles of arrival. Simulation results are presented and compared to MUSIC, ESPRIT, and other DOA estimation techniques.
Starting Page	311
Ending Page	314
File Size	399019
Page Count	4
File Format	PDF
ISBN	0780359887
DOI	10.1109/SSAP.2000.870134
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-08-16
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Direction of arrival estimation Delay estimation Time frequency analysis Delay effects Parameter estimation Receiving antennas Multiple signal classification Antenna arrays Array signal processing Frequency shift keying
Content Type	Text
Resource Type	Article

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