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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28086

Title: Adaptive Target Tracking for Wideband Sources in Near Field
Authors: Lena Chang;Ching-Min Cheng
Contributors: NTOU:Department of Communications Navigation and Control Engineering
國立臺灣海洋大學:通訊與導航工程學系
Keywords: Tracking;direction-of-arrival (DOA)stimation;near-field;wideband sources
Date: 2009-07-06
Issue Date: 2011-10-21T02:35:50Z
Publisher: Information Fusion, 2009. FUSION '09. 12th International Conference on
Abstract: Abstract:A novel adaptive signal subspace transformation for direction-of-arrival (DOA) estimation of wideband sources in the near-field is proposed in this paper. The method is composed of two transformations: signal subspace focusing (SSF) and far-field transform (FFT). SSF aligns the signal subspaces for different frequencies in the bandwidth of the sources based on focusing matrices. FFT transforms the near-field steering vector into the far-field steering vector with same direction-of-arrival (DOA) allocation. By the way, we simplify the location estimation of wideband sources in the near-field to be narrowband sources in the far field. The proposed method can track the DOAs and ranges of near-field wideband sources, simultaneously. Simulation results and water-tank experiments confirm the feasibility and efficiency of the proposed adaptive DOA estimation method in underwater environments.
Relation: pp.649-655
URI: http://ntour.ntou.edu.tw/handle/987654321/28086
Appears in Collections:[通訊與導航工程學系] 演講及研討會

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