On the estimation of target depth using the single transmit multiple receive metal detector array

K. C. Ho; P. D. Gader

doi:10.1117/12.918778

10 May 2012 On the estimation of target depth using the single transmit multiple receive metal detector array

K. C. Ho, P. D. Gader

Proceedings Volume 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII; 835709 (2012) https://doi.org/10.1117/12.918778
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

This paper investigates the use of the Single Transmit Multiple Receive (STMR) metal detector (MD) array to estimate the depth of metal targets, such as 155mm shells. The depth estimation problem using MD has been investigated by a number of researchers and the processing was performed along the down-track. The proposed method takes a different approach by exploring the MD responses in cross-track to achieve the depth estimation. It is found that the normalized energy spread of the MD output is narrower for shallow targets and wider for deeper targets. Based on this observation, a method is derived to estimate the depth of a target. Experimental results from the data collected at an U.S. Army test site validate the performance of the proposed depth estimator.

Citation Download Citation

K. C. Ho and P. D. Gader "On the estimation of target depth using the single transmit multiple receive metal detector array", Proc. SPIE 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII, 835709 (10 May 2012); https://doi.org/10.1117/12.918778

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