Real-time data aiding for enhanced GPS performance
US7904243B2 · kind B2 · utility
9Cited by
8References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Aug 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Data from GPS satellites within the field of view of a ground station are retransmitted to LEO satellites, such as Iridium satellites, and cross-linked if necessary before being transmitted to a user. The user is then able to combine the fed-forward data with data received directly from GPS satellites in order to resolve errors due to interference or jamming. Iridium and data aiding thus provides a means for extending GPS performance under a variety of data-impaired conditions because it can provide certain aiding information over its data link in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.