Rear-looking apparatus and method for detecting contrails
US5285256A · kind A · utility
30Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1992 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Jul 28, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/88
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Contrail detection aft of an aircraft is provided by a rear-looking ranging system carried by the aircraft. A randomly modulated laser beam is directed into a detection volume aft of the aircraft for scatter back toward a detector on the aircraft. Bistatic mounting of a laser and a telescope of the detector preclude sensing of the scattered beam forward of the detection volume. Processing of the detected scattered beam includes cross correlation and analysis to indicate the formation of the contrail aft of the aircraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.