Operating curve approach to phased array detection in scattering media

S. P. Morgan, Michael Geoffrey Somekh, K. I. Hopcraft

Research output: Journal article publicationConference articleAcademic researchpeer-review


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.
Original languageEnglish
Pages (from-to)240-251
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 1997
Externally publishedYes
EventProceedings of Photon Propagation in Tissues III - San Remo, Italy
Duration: 6 Sep 19978 Sep 1997


  • Operating curve
  • Phased array
  • Scattering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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