Method and devices for temperature-based determination of gyroscope bias
US9354080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Feb 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C23/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one aspect, the present disclosure provides a processor-implemented method of determining a bias for an axis of a gyroscope. The method includes: obtaining a temperature reading; maintaining a plurality of bias estimators for the axis, each bias estimator associated with a temperature and configured to estimate a bias at the associated temperature, the plurality of bias estimators including a number of short term bias estimators for estimating biases for recently obtained temperatures and a number of long term bias estimators for estimating biases for temperatures obtained over a comparatively longer period of time; and determining a bias for the axis of the gyroscope based on the temperature reading and one or more of the bias estimators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.