Satellite navigation receiver and method
US6437734B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 11, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/35
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A satellite-navigation system comprises an observer platform for collecting signal observations from orbiting navigation satellites. A server platform provides a simplified navigation-satellite constellation almanac, ephemeris, differential correction, and client services. A navigation platform passes information between the observer and server platforms and provides for autonomous position solution computations for a limited time after a periodic call for an aiding data from the server platform. A measurement platform included in the server platform makes static observations of a navigation-satellite constellation and that builds a database of measurement errors and satellite data messages. A health and quality monitor included in the server platform checks the static observations and preventing an inclusion of incorrect information in the database of measurement errors and satellite data messages. A TCP/IP communication link existing at least once between the server and navigation platforms supports an information datapacket format that periodically transfers over the communication link. It reduces the almanac and ephemeris satellite messages at the server platform to a set of si…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.