Integer ambiguity-fixed precise point positioning method and system
US10185038B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Dec 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for providing and applying Precise Point Positioning-Integer Ambiguity Resolution (PPP-IAR) corrections for a Global Navigation Satellite System (GNSS). In a GNS signal correction system, PPP-IAR corrections (ambiguities plus receiver and satellite hardware delays) are calculated based on observation data (Pi,a, Φi,a) of n satellites for individual reference stations using a functional model, and these individual PPP-IAR corrections are merged into one single and larger set of PPP-IAR corrections. In a broadcast system, the (merged) PPP-IAR corrections are encoded at a System Control Centre (SCC) and transmitted to mobiles. In a mobile system a similar functional model is used to calculate a correction Δx to an a priori position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.