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|Title:||DOA estimation of wideband sources without estimating the number of sources||Authors:||Reddy, Vinod Veera
Ng, B. P.
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
|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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