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Decoupled Estimation of 2D DOA for Coherently Distributed Sources Using 3D Matrix Pencil Method

Abstract

A new 2D DOA estimation method for coherently distributed (CD) source is proposed. CD sources model is constructed by using Taylor approximation to the generalized steering vector (GSV), whereas the angular and angular spread are separated from signal pattern. The angular information is in the phase part of the GSV, and the angular spread information is in the module part of the GSV, thus enabling to decouple the estimation of 2D DOA from that of the angular spread. The array received data is used to construct three-dimensional (3D) enhanced data matrix. The 2D DOA for coherently distributed sources could be estimated from the enhanced matrix by using 3D matrix pencil method. Computer simulation validated the efficiency of the algorithm.

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Correspondence to Zhang Gaoyi.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Gaoyi, Z., Bin, T. Decoupled Estimation of 2D DOA for Coherently Distributed Sources Using 3D Matrix Pencil Method. EURASIP J. Adv. Signal Process. 2008, 417157 (2008). https://doi.org/10.1155/2008/417157

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  • DOI: https://doi.org/10.1155/2008/417157

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