Probabilistic method for phased array detection in scattering media

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

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 given to the effects of noise within the system leading to detection errors. A probabilistic approach is used 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.
Original languageEnglish
Pages (from-to)1618-1626
Number of pages9
JournalOptical Engineering
Volume37
Issue number5
DOIs
Publication statusPublished - 1 Jan 1998
Externally publishedYes

Keywords

  • Operating curve
  • Phased array
  • Scattering

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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