Method and system for reconstructing time of transmit from assisted or weak signal GPS observations
US8542714B2 · kind B2 · utility
0Cited by
10References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 5, 2007 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Nov 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/37
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides methods for a GPS device to resolve timing errors as applicable to a AGPS navigation solution, and, in particular, to solutions involving GNSS positioning and timing with limited assistance such as indoors or in a heavily obscured location, where the time of transmit of satellite signals is not directly extractable from the navigation message data. In particular the invention concerns the reconstruction of time-of-transmit from the course acquisition code of weak signals or where assisted-GNSS are employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.