Extended Kalman filter based autonomous magnetometer calibration
US11047682B2 · kind B2 · utility
1Cited by
3References
24Claims
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Key dates
| Filing date | Nov 11, 2014 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Aug 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods may provide for obtaining first sensor data associated with a gyroscope and obtaining second sensor data associated with a magnetometer. Additionally, the first sensor data, the second sensor data and an extended Kalman filter may be used to calibrate the magnetometer. In one example, a sampling rate of the magnetometer is increased before obtaining the second sensor data and the sampling rate of the magnetometer is decreased after calibration of the magnetometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.