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Adaptive DOA Estimation Using a Database of PARCOR Coefficients

EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 091567 (2006) Cite this article

Abstract

An adaptive direction-of-arrival (DOA) tracking method based upon a linear predictive model is developed. This method estimates the DOA by using a database that stores PARCOR coefficients as key attributes and the corresponding DOAs as non-key attributes. The-dimensional digital search tree is used as the data structure to allow efficient multidimensional searching. The nearest neighbour to the current PARCOR coefficient is retrieved from the database, and the corresponding DOA is regarded as the estimate. The processing speed is very fast since the DOA estimation is obtained by the multidimensional searching. Simulations are performed to show the effectiveness of the proposed method.

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Authors and Affiliations

  1. Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 1–3 Machikaneyama Toyonaka, Osaka, 560-8531, Japan

    Eiji Mochida & Youji Iiguni

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  1. Eiji Mochida
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  2. Youji Iiguni
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Correspondence to Eiji Mochida.

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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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Mochida, E., Iiguni, Y. Adaptive DOA Estimation Using a Database of PARCOR Coefficients. EURASIP J. Adv. Signal Process. 2006, 091567 (2006). https://doi.org/10.1155/ASP/2006/91567

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  • DOI: https://doi.org/10.1155/ASP/2006/91567

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