Enhancing RTK position resolution using an RTK-enabled GNSS positioning receiver
US11802972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2022 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0968
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method of enhancing RTK position resolution using an RTK-enabled GNSS positioning receiver, including receiving an RTK base station signal for differential position calculation, and receiving a forecast assured navigation signal that includes data identifying line-of-sight availability of satellites generating GNSS signals at a position of the GNSS positioning receiver. Also included is excluding from, or reducing the weighting of, GNSS position calculation satellites not identified as line-of-sight available in the forecast assured navigation signal, and computing the GNSS position calculation combining the knowledge of line of sight, or not line of sight, satellites with the RTK base station signal to perform the differential position calculation and to determine an improved calculated position of the GNSS positioning receiver. Further included is unpacking from the forecast navigation signal receiver the data identifying line-of-sight availability of satellites based on an initially calculated location of the GNSS positioning receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.