Position accuracy improvement using smart satellite vehicle selection
US11812336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2019 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | May 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques for improved GNSS positioning include leveraging approximate location information and information from sensors of a mobile device, and/or sensors communicatively coupled therewith, to detect obstructions and determine which SVs may be blocked from direct view. In particular, information from one or more cameras, LIDAR, radar, and/or other sensor systems can be used to determine how nearby obstructions may block the view of portions of the sky from the perspective of the mobile device, then compared with a SkyPlot of SVs based on the mobile device's approximate location to determine which SVs are likely blocked from view. A GNSS position determination of the mobile device can then be made by reducing the weight of information received from blocked (obstructed) SVs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.