Determining and reducing inertial navigation system drift
US10760913B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Oct 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T19/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for determining and reducing drift in inertial navigation systems (INS). One method includes receiving images and drifted positions associated with a plurality of INS. The method includes detecting, from the plurality of images, a plurality of objects associated with the plurality of INS. The method includes determining, relative positions for the objects. The method includes generating a plurality of avatars, each having a virtual position, and associating each of the plurality of objects to one of the plurality of avatars. The method includes, for each of the INS, calculating a relative drift based on the relative position of the object and the drifted position of the INS. The method includes calculating a drift correction factor for at least one of the INS, and transmitting the drift correction factor to an electronic device associated with the INS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.