NDLI: Joint estimation of propagation delay and direction of arrival of multipath signals

Content Provider	IEEE Xplore Digital Library
Author	Pholyiam, A. Ahmed, K.M. Tsuji, H. Fernando, W.A.C.
Copyright Year	2003
Description	Author affiliation: Telecommun. Program, Asian Inst. of Technol., Pathumthani, Thailand (Pholyiam, A.; Ahmed, K.M.)
Abstract	In this paper, we present an algorithm named MUSIC-MODE for jointly estimating the propagation time delays and the directions of arrival (DOAs) of multipath signals from a mobile station received at an array antenna. This algorithm is modified from the time-space-time multiple signal classification (TST-MUSIC) algorithm to reduce the computational complexity, but still obtains high accuracy result. A method of direction estimation (MODE) is applied to estimate the DOAs instead of the spatial-MUSIC (S-MUSIC) algorithm. Since it offers the advantage of better performance, especially in situations where the incoming signals are highly correlated. However, the temporal-MUSIC (T-MUSIC) is still utilized to group the incoming signals and to estimate the propagation delays. The propagation delays and DOAs can be estimated in the case of the number of incoming signals are greater than the number of antennas. Furthermore, the simulation results clearly illustrate that the presented algorithm can also resolve the incoming signals with either close in delays or close in DOAs. Additionally, when high resolution of estimated DOA is required, the computation time of the proposed algorithm is less than the one produced by TST-MUSIC.
Starting Page	529
Ending Page	533
File Size	280274
Page Count	5
File Format	PDF
ISBN	0780377575
ISSN	10903038
DOI	10.1109/VETECS.2003.1207598
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-04-22
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay estimation Direction of arrival estimation Propagation delay Antennas and propagation Signal resolution Delay effects Antenna arrays Directive antennas Mobile antennas Receiving antennas
Content Type	Text
Resource Type	Article

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