NDLI: An Innovative Multiresolution Approach for DOA Estimation Based on a Support Vector Classification

Content Provider	IEEE Xplore Digital Library
Author	Donelli, M. Viani, F. Rocca, P. Massa, A.
Copyright Year	1963
Abstract	The knowledge of the directions of arrival (DOAs) of the signals impinging on an antenna receiver enables the use of adaptive control algorithm suitable for limiting the effects of interferences and increasing the gain towards the desired signals in order to improve the performances of wireless communication systems. In this paper, an innovative multi-resolution approach for the real-time DOA estimation of multiple signals impinging on a planar array is presented. The method is based on a support vector classifier and it exploits a multi-scaling procedure to enhance the angular resolution of the detection process in the regions of incidence of the incoming waves. The data acquired from the array sensors are iteratively processed with a support vector machine (SVM) customized to the problem at hand. The final result is the definition of a map of the probability that a signal impinges on the antenna from a fixed angular direction. Selected numerical results, concerned with both single and multiple signals, are provided to assess potentialities and current limitations of the proposed approach.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	2279
Ending Page	2292
Page Count	14
File Size	1951631
File Format	PDF
ISSN	0018926X
Volume Number	57
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Direction of arrival estimation Sensor arrays Signal resolution Directive antennas Support vector machines Support vector machine classification Adaptive arrays Receiving antennas Adaptive control Interference support vector machine Classification direction of arrival (DOA) estimation multiresolution planar arrays
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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