Navigation device and process integrating several hybrid inertial navigation systems
US8898013B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Aug 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hybrid navigation device includes at least one auxiliary sensor adapted to deliver at least one auxiliary signal and a plurality of hybrid navigation systems, each including at least one inertial navigation system and one calculator configured to form an hybrid signal at the output of each hybrid navigation system. The hybrid navigation device includes a module for the detection of good operating condition and the weighting of the hybrid navigation systems, the module being configured to receive the at least one auxiliary signal, and the hybrid signals of each hybrid navigation system, respectively, to deduce therefrom an indicator of good operating condition and a weighting coefficient for each hybrid navigation system, and to calculate a weighted hybrid signal as a function of the hybrid signals and of the weighting coefficients of each hybrid navigation system, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.