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Proceedings Paper

Operating curve approach to phased-array detection in scattering media
Author(s): Stephen P. Morgan; Michael G. Somekh; Keith I. Hopcraft
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Paper Abstract

It has been suggested that phased array detection is a highly sensitive method of detecting and locating an inhomogeneity embedded within a scattering medium e.g. a tumor embedded in breast tissue. No consideration has so far been made to the effects of noise within the system leading to detection errors. This paper uses a probabilistic approach to find the optimum detector threshold and detection criteria. The technique is demonstrated using experimental data obtained from a novel phased array system designed to eliminate noise due to amplitude fluctuations between the two sources. A brief comparison with single beam frequency detection using the probabilistic method is also made. The technique has applications in optimizing the detection of signals due to inhomogeneities in the presence of a noisy background.

Paper Details

Date Published: 1 January 1998
PDF: 12 pages
Proc. SPIE 3194, Photon Propagation in Tissues III, (1 January 1998); doi: 10.1117/12.301061
Show Author Affiliations
Stephen P. Morgan, Univ. of Nottingham (United Kingdom)
Michael G. Somekh, Univ. of Nottingham (United Kingdom)
Keith I. Hopcraft, Univ. of Nottingham (United Kingdom)

Published in SPIE Proceedings Vol. 3194:
Photon Propagation in Tissues III
David A. Benaron; Britton Chance; Marco Ferrari, Editor(s)

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