System and method for improved accuracy in locating and maintaining positions using GPS
US6292132A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method are provided for using multiple GPS antennas and corresponding processors on a single vehicle in order to both maintain position information when fewer than four GPS satellites are visible and to reduce position errors by minimizing multipath induced errors using information combined from the multiple systems. The system and method calculates differential path lengths between the received position information signals and at least two antenna/processor pairs to determine cone angles therebetween. The position information of the mobile vehicle is maintained based on the initial position information and the determined cone angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.