System and method for augmenting a satellite-based navigation solution
US7756639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2004 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Feb 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A map-matching feedback interface uses added information to bound a mapping solution and calibrate a navigation system, thus enabling the navigation system to navigate more accurately over a longer period of time. The system recognizes erroneous measurements and reduces or eliminates them from the mapping solution, thus preventing position inaccuracies. The system interfaces the navigation system with a mapping system that feeds back map-based data to the navigation system and combines the map-matching feedback data with other sensor data to produce an accurate navigation solution even in environments where GPS or dead reckoning input data is inaccurate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.