Method and apparatus for GPS positioning, filtering and integration
US5740048A · kind A · utility
Inventors
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/49
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for processing data from a positioning or navigation system, such as global positioning system (GPS) navigation system data. In preferred embodiments, the invention is a method and apparatus for estimating position based on GPS measurements and optionally, measurements from other types of navigation sensors combined with GPS navigation system data. The apparatus of the invention includes a point position estimator (which preferably approximates a maximum likelihood estimator) for processing data from a positioning or navigation system to generate point position estimate data, and a smoothing filter for smoothing the point position estimate data. The smoothing filter can be a linear Kalman filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.