Navigation satellite acquisition in satellite positioning system receiver
US7250904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2004 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Sep 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method in a mobile satellite positioning system receiver operating in cold-start mode, including searching for and detecting (310) a first satellite in a constellation of orbiting satellites, searching (320) for a second satellite based on detection probability information for non-detected satellites, the detection probability information obtained using information about one of satellites not detected or the first satellite detected. In one embodiment, the detection probability information is based on a measure of range between the non-detected satellites and the first satellite detected, and in another embodiment the detection probability information is based on a measure of angle between the non-detected satellites and the first satellite detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.