Operating curve approach to phased-array detection in scattering media

Stephen P. Morgan; Michael G. Somekh; Keith I. Hopcraft

doi:10.1117/12.301061

1 January 1998 Operating curve approach to phased-array detection in scattering media

Stephen P. Morgan, Michael G. Somekh, Keith I. Hopcraft

Proceedings Volume 3194, Photon Propagation in Tissues III; (1998) https://doi.org/10.1117/12.301061
Event: BiOS Europe '97, 1997, San Remo, Italy

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.

Citation Download Citation

Stephen P. Morgan, Michael G. Somekh, and Keith I. Hopcraft "Operating curve approach to phased-array detection in scattering media", Proc. SPIE 3194, Photon Propagation in Tissues III, (1 January 1998); https://doi.org/10.1117/12.301061

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