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.
| Original language | English |
|---|---|
| Pages (from-to) | 240-251 |
| Number of pages | 12 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3194 |
| DOIs | |
| Publication status | Published - 1 Dec 1997 |
| Externally published | Yes |
| Event | Proceedings of Photon Propagation in Tissues III - San Remo, Italy Duration: 6 Sept 1997 → 8 Sept 1997 |
Keywords
- 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