Newton-type method in spectrum estimaion-based AOA estimation
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概要
- 論文の詳細を見る
For numerical optimization of the cost function of the maximum likelihood (ML) algorithm for angle-of-arrival (AOA) estimation, Newton-type method has been widely employed. In this paper, we apply the Newton-type method to the optimization of cost function for spectrum estimation-based AOA estimation algorithm of the conventional beamforming, the Capon beamfomring and the MUSIC algorithm. Explicit expressions of the first derivatives and the second derivatives of the cost functions are presented. The expressions are used for the Newton iteration to improve the accuracy of the initial estimates. The performance improvement in terms of estimation accuracy and computational burden is demonstrated using the Monte-Carlo simulations.
- The Institute of Electronics, Information and Communication Engineersの論文
著者
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Kim Hyung
Department Of Biochemistry Ewha Womans University School Of Medicine
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Lee Joon-ho
Department Of Agricultural Biology School Of Agricultural Biotechnology Seoul National University
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Cho Sung-woo
Department Of Biochemistry And Molecular Biology University Of Ulsan College Of Medicine
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Cho Sung-Woo
Department of Information and Communication Engineering, Sejong University
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Lee Joon-Ho
Department of Information and Communication Engineering, Sejong University
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