Method and system for position determination using geostationary earth orbit satellite
US6515617B1 · kind B1 · utility
44Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system (20) and method (30) for estimating the location of a terrestrial-based user terminal (23) is provided. The user terminal (23) is capable of measuring the relative signal strengths of a plurality of spot beams pilot signal emitted from a geostationary satellite (22). The user terminal (23) then estimates its position based on the measured relative signal strengths. Using this approach, the user terminal (23) can quickly determine its location without prior knowledge of its position or delay time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.