Methods and systems for target detection
US8654316B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various aspects of the disclosure provide a target system that is small and low power. In one embodiment, the target system transmits an intensity modulated light beam to a target (which may be tagged with a fluorescent taggant), collects the resulting return light from the target, and separates out elastic light scatter and fluorescent light in the collected light. The intensities of the elastic light scatter and the fluorescent light are then separately detected by first and second photodetectors, respectively. The first photodetector generates an elastic scatter detection signal based on the detected elastic light scatter and the second photodetector generates a fluorescent detection signal based on the detected fluorescent light. The elastic scatter detection signal and/or the fluorescent detection signal are used to provide one or more of the following functions: 1) target detection, 2) range determination, 3) taggant detection, and 4) taggant discrimination/confirmation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.