NDLI: Statistical analysis of various wavelet functions to direction of arrival estimation

Content Provider	IEEE Xplore Digital Library
Author	Tamer, O. Kokturk, G.
Copyright Year	2004
Description	Author affiliation: Dokuz Eylul Univ., Izmir, Turkey (Tamer, O.; Kokturk, G.)
Abstract	Capacity improvement techniques for cellular communication systems, such as smart antenna systems, are becoming more important as demand on mobile communication services increases. The paper analyzes the effects of different wavelet functions applied to the received signal vector by using the stationary wavelet transform (SWT) before the direction of arrival (DOA) estimation. The multiple signal classification (MUSIC) algorithm is used for the DOA estimation. Resolution of the MUSIC algorithm for uniform linear arrays decreases as the impinging signals get close to the horizon, due to the array steering vector. To enhance this poor resolution, the SWT is enhanced before the DOA estimation. Different wavelet functions affect the performance of this method, so the paper statistically analyzes these effects by simulating the received signal vector for signals arriving from close-to-horizon angles and adding a random level of noise to this vector. After the modelling of the received vector, the SWT is applied by using different wavelet functions and results are compared after 100 simulations.
Sponsorship	IEEE Tubitak Istanbul Teknik Universitesi Aselsan Profilo Telra TURCom SGI Datacore Divit
Starting Page	496
Ending Page	498
File Size	163466
Page Count	3
File Format	PDF
ISBN	0780383184
DOI	10.1109/SIU.2004.1338573
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-04-30
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms Statistical analysis Mobile antennas Wavelet analysis Mobile communication Vectors Multiple signal classification Direction of arrival estimation Signal analysis Signal resolution
Content Type	Text
Resource Type	Article

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