System and method for model-base compression of GPS ephemeris
US7679550B2 · kind B2 · utility
9Cited by
6References
22Claims
0Family size
Inventors
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Feb 21, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/05
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for propagating ephemeris data for a satellite in Earth orbit is provided. The method includes the steps of receiving orbital positional data for a first time period of a satellite's Earth orbit, propagating orbital positional data for the satellite's Earth orbit during a second time period extending beyond the first time period, fitting a Keplerian ephemeris model to the propagated orbital positional data to estimate model coefficients, and sending the estimated model coefficients to receivers for determination of receiver position at a time during the second time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.