Adaptive GNSS positioning method capable of adjusting to ionospheric delay
US10288743B2 · kind B2 · utility
2Cited by
2References
8Claims
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Key dates
| Filing date | Aug 15, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Oct 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/43
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plurality of GNSS satellite signals feeds the signal processing engine operating in certain processing mode including carrier phase smoothed pseudorange positioning, precise point positioning (PPP), pseudorange differential (DGNSS), and carrier phase differential (RTK). The processing engine calculates two estimates of the ionosphere delay for each satellite: the filtered delay and the instant delay. Comparison of them allows to detect turbulent variation of the ionosphere and adjust parameters of two-parametric dynamic mode which improves positioning precision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.