Personal navigation using terrain-correlation and/or signal-of-opportunity information
US7305303B2 · kind B2 · utility
27Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A navigation system includes an inertial navigation unit. The navigation system also includes a Kalman filter that generates corrective feedback for use by the inertial navigation unit. The Kalman filter generates the corrective feedback as a function of at least one of GPS/DGPS information, sensor information, user input, terrain correlation information, signal-of-opportunity information, and/or position information output by a motion classifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.