Wideband DOA estimation in dispersive medium

Vinod Veera Reddy; Boon Poh Ng; Andy W.H. Khong

doi:10.1109/ICICS.2013.6782866

Wideband DOA estimation in dispersive medium

Vinod Veera Reddy, Boon Poh Ng, Andy W.H. Khong

Nanyang Technological University

Research output: Contribution to conference › Paper › peer-review

Abstract

The problem of direction-of-arrival (DOA) estimation in dispersive medium is considered in this work. For accurate localization of the sources in seismic and underwater acoustic applications, speed profile is estimated and employed. In contrast to this approach, we propose a new algorithm for wideband DOA estimation with unknown speed profile across the source bandwidth. This insensitivity to dispersion is accomplished by incorporating soft derivative constraint into the optimization problem. The presented simulations exhibit the effectiveness of the proposed algorithm in estimating the source directions in dispersive medium.

Original language	English
DOIs	https://doi.org/10.1109/ICICS.2013.6782866
Publication status	Published - 2013
Externally published	Yes
Event	9th International Conference on Information, Communications and Signal Processing, ICICS 2013 - Tainan, Taiwan, Province of China Duration: Dec 10 2013 → Dec 13 2013

Conference

Conference	9th International Conference on Information, Communications and Signal Processing, ICICS 2013
Country/Territory	Taiwan, Province of China
City	Tainan
Period	12/10/13 → 12/13/13

ASJC Scopus Subject Areas

Computer Networks and Communications
Information Systems
Signal Processing

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10.1109/ICICS.2013.6782866

Cite this

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abstract = "The problem of direction-of-arrival (DOA) estimation in dispersive medium is considered in this work. For accurate localization of the sources in seismic and underwater acoustic applications, speed profile is estimated and employed. In contrast to this approach, we propose a new algorithm for wideband DOA estimation with unknown speed profile across the source bandwidth. This insensitivity to dispersion is accomplished by incorporating soft derivative constraint into the optimization problem. The presented simulations exhibit the effectiveness of the proposed algorithm in estimating the source directions in dispersive medium.",

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year = "2013",

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AU - Reddy, Vinod Veera

AU - Ng, Boon Poh

AU - Khong, Andy W.H.

PY - 2013

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AB - The problem of direction-of-arrival (DOA) estimation in dispersive medium is considered in this work. For accurate localization of the sources in seismic and underwater acoustic applications, speed profile is estimated and employed. In contrast to this approach, we propose a new algorithm for wideband DOA estimation with unknown speed profile across the source bandwidth. This insensitivity to dispersion is accomplished by incorporating soft derivative constraint into the optimization problem. The presented simulations exhibit the effectiveness of the proposed algorithm in estimating the source directions in dispersive medium.

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Y2 - 10 December 2013 through 13 December 2013

ER -

Wideband DOA estimation in dispersive medium

Abstract

Conference

ASJC Scopus Subject Areas

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