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 language | English |
|---|---|
| Pages (from-to) | 1618-1626 |
| Number of pages | 9 |
| Journal | Optical Engineering |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Jan 1998 |
| Externally published | Yes |
Keywords
- Operating curve
- Phased array
- Scattering
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Engineering