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Proceedings Paper

Near-field MVDR source localization
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Paper Abstract

A method is proposed for near-field narrowband source localization based on measurements from a uniform linear array (ULA) of sensors. This incoming field can be measured as a function of delay between each outer sensor and the center reference sensor. The approach uses a Fresnel approximation for the time delay between the sensor data as a function of direction of arrival and range. A minimum variance distortionless response (MVDR) filter is constructed to focus on any given near field location and the output is calculated when the recorded signal is passed through it. The intensity of this output for the various MVDR filters gives information on the source location and intensity.

Paper Details

Date Published: 3 April 2008
PDF: 9 pages
Proc. SPIE 6980, Wireless Sensing and Processing III, 69800O (3 April 2008); doi: 10.1117/12.785068
Show Author Affiliations
Joseph J. Handfield, Harris Corp. (United States)
Raghuveer M. Rao, Rochester Institute of Technology (United States)
Sohail A. Dianat, Rochester Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6980:
Wireless Sensing and Processing III
Sohail A. Dianat; Michael D. Zoltowski, Editor(s)

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