Sensor installation monitoring
US10551196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2015 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Nov 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/53
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Technology for correcting a misalignment between an inertial measurement unit (IMU) and a moving platform is described. A first attitude of the moving platform can be identified based on a truth source. A second attitude of the moving platform can be calculated using IMU measurements. A delta attitude can be calculated from a difference between the first attitude and the second attitude. Natural error can be removed from the delta attitude to produce an angular misalignment value between axes of the IMU and axes of the moving platform. A total misalignment value can be determined by adding the angular misalignment value to a baseline misalignment value. The IMU can incorporate the total misalignment value for subsequent attitude measurements of the moving platform in order to produce substantially accurate attitude measurements of the moving platform when the axes of the IMU are misaligned with the axes of the moving platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.