Method and a system for locating ground equipment transmitting via satellites
US5859610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Oct 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a system for locating ground equipment transmitting signals to a geostationary satellite, the method and the system being based on identifying the arrival directions of such signals within the coverage zone of the satellite. In the method, the arrival directions of the signals are identified by using a beam-forming active-module array antenna system on board the satellite, the system being controlled to define simultaneous beams in the radiation pattern of the antenna, the beams being superposed on one another with small offsets, the superposed beams corresponding to a limited analysis zone being illuminated within the coverage zone of the satellite, the system further being associated with a digital processing program which identifies the arrival directions of the signals which are received in the analysis zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.