Troposphere corrections for ground based positioning systems
US7656352B2 · kind B2 · utility
6Cited by
1References
26Claims
0Family size
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Key dates
| Filing date | Sep 20, 2005 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Troposphere corrections are provided in a land based transmitter-positioning system. Troposphere delays correct ranges based on X- or ISM-band carrier ranging signals with a modulation rate of the code of at least about 30 MHz. Ground based transmitters transmit non-GPS type ranging signals, and the receivers correct for troposphere delays. Troposphere delay corrections are applied to range estimates on each iteration of an iterative position-fix algorithm. Different models of troposphere corrections in a ground based ranging system may be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.