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Proceedings Paper

Cramer-Rao analysis of unknown target parameters in electromagnetic induction data
Author(s): Andrew J. Kerr; Waymond R. Scott Jr.; James H. McClellan
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Paper Abstract

In this paper, we derive the Cramer-Rao Lower Bound (CRLB) for the unknown tensor amplitudes and target location parameters that can be estimated from electromagnetic induction (EMI) measurements of a target. In deriving the bound, no restrictions are placed on the target type, target orientation, measurement geometry, or the geometry of the electromagnetic induction sensor or sensor array. The analysis is applicable to both a scanned sensor and a stationary array. In doing so, we illustrate ways to use the CRLB to analyze the relationships between parameters and parameter sets. We then apply the analysis to an experimental Georgia Tech EMI sensor for a nominal 2-D scan geometry. We also identify additional considerations in designing EMI sensors and acquisition setups.

Paper Details

Date Published: 30 April 2018
PDF: 18 pages
Proc. SPIE 10628, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIII, 106280R (30 April 2018); doi: 10.1117/12.2305537
Show Author Affiliations
Andrew J. Kerr, Georgia Institute of Technology (United States)
Waymond R. Scott Jr., Georgia Institute of Technology (United States)
James H. McClellan, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 10628:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIII
Steven S. Bishop; Jason C. Isaacs, Editor(s)

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