Ionosphere modeling apparatus and methods
US7868820B2 · kind B2 · utility
37Cited by
4References
22Claims
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Key dates
| Filing date | Sep 5, 2006 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Nov 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus which characterize the ionospheric error across a network of GNSS reference stations are presented. The method relies on dual-frequency phase measurements in a geometry-free linear combination. The data are filtered for ambiguities and the characteristic parameters of the ionosphere. In combination with filter results from other combinations of phase measurements (ionosphere free combination), the physically-based model provides rapid and reliable ambiguity resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.