Resilient ephemeris decoding of GNSS satellite information
US11841444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2021 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Jul 10, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/39
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A positioning system and method for resilient ephemeris decoding of Global Navigation Satellite System (GNSS) satellite information is provided. The positioning system decodes first ephemeris data of a satellite in a GNSS satellite constellation and estimates a first position of the satellite at a first time-instant. The positioning system further estimates a deviation between the estimated first position and a position where the satellite is expected to be at the first time-instant and determines the estimated deviation to be above a threshold. The positioning system excludes use of the estimated first position in a position fixing operation of the positioning system based on the determination. The positioning system decodes second ephemeris data of the satellite based on the exclusion, estimates a second position of the satellite at a second time-instant, and controls a position filter of the positioning system to use the estimated second position in the position fixing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.