Abstract: | Axisymmetric resonators possess multiple pairs of nominally degenerate modes, each of which can be configured as a Corilois vibratory gyro. In this paper we report a technique to extract simultaneous angular rate measurements from the same resonator. Specifically, both of the n = 2 and n = 3 pairs of modes in a disk resonator are configured to yield measurements of angular rate. Although the short-term noise is uncorrelated between these rate measurements, the long-term drifts show very strong correlation. A technique is implemented to fuse the two measurements into a single estimate of rate with much lower drift thereby providing a technique for in-situ bias drift compensation. |
Published in: |
2018 IEEE/ION Position, Location and Navigation Symposium (PLANS) April 23 - 26, 2018 Hyatt Regency Hotel Monterey, CA |
Pages: | 288 - 293 |
Cite this article: | Ge, Howard H., Behbahani, Amir H., M'Closkey, Robert T., "MEMS Gyro Drift Compensation Using Multiple Rate Measurements Derived from a Single Resonator," 2018 IEEE/ION Position, Location and Navigation Symposium (PLANS), Monterey, CA, April 2018, pp. 288-293. |
Full Paper: |
ION Members/Non-Members: 1 Download Credit
Sign In |