Near-field MVDR source localization

Joseph J. Handfield; Raghuveer M. Rao; Sohail A. Dianat

doi:10.1117/12.785068

3 April 2008 Near-field MVDR source localization

Joseph J. Handfield, Raghuveer M. Rao, Sohail A. Dianat

Proceedings Volume 6980, Wireless Sensing and Processing III; 69800O (2008) https://doi.org/10.1117/12.785068
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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.

Citation Download Citation

Joseph J. Handfield, Raghuveer M. Rao, and Sohail A. Dianat "Near-field MVDR source localization", Proc. SPIE 6980, Wireless Sensing and Processing III, 69800O (3 April 2008); https://doi.org/10.1117/12.785068

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