Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97883
Title: DOA estimation of wideband sources without estimating the number of sources
Authors: Reddy, Vinod Veera
Ng, B. P.
Zhang, Ying
Khong, Andy Wai Hoong
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2011
Source: Reddy, V. V., Ng, B. P., Zhang, Y., & Khong, A. W. (2012). DOA estimation of wideband sources without estimating the number of sources. Signal Processing, 92(4), 1032-1043.
Reddy, V. V., Ng, B. P., Zhang, Y., & Khong, A. W. H. (2012). DOA estimation of wideband sources without estimating the number of sources. Signal Processing, 92(4), 1032-1043.
Series/Report no.: Signal processing
Abstract: In this paper, we propose a new technique to estimate wideband source directions from the sensor snapshots without requiring to know the number of sources present in the scenario. This work is motivated by the fact that the existing model order estimation (number of sources) techniques for wideband source scenario are either inaccurate or computationally expensive. Direction-of-arrival (DOA) estimation is realized using a beamformer framework which imposes nulls in the spatial spectrum along the source directions. The null width along the frequency axis is widened by introducing a new data dependent term into the optimization problem, thus achieving wideband capability. Furthermore, the temporal processing of the data snapshots drastically reduces the number of snapshots required for wideband DOA estimation. The effectiveness of the proposed formulation is studied with simulated experiments.
URI: https://hdl.handle.net/10356/97883
http://hdl.handle.net/10220/12053
ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2011.10.015
Rights: © 2011 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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