File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1115/DSCC2014-6053
- Scopus: eid_2-s2.0-84929251059
Supplementary
-
Citations:
- Scopus: 0
- Appears in Collections:
Conference Paper: Adaptive mismatch compensation for rate integrating vibratory gyroscopes with improved convergence rate
Title | Adaptive mismatch compensation for rate integrating vibratory gyroscopes with improved convergence rate |
---|---|
Authors | |
Issue Date | 2014 |
Citation | ASME 2014 Dynamic Systems and Control Conference, DSCC 2014, 2014, v. 3 How to Cite? |
Abstract | © 2014 by ASME. This paper presents an online adaptive algorithm to compensate damping and stiffness frequency mismatches in rate integrating Coriolis Vibratory Gyroscopes (CVGs). The proposed adaptive compensator consists of a least square estimator that estimates the damping and frequency mismatches, and an online compensator that corrects the mismatches. In order to improve the adaptive compensator's convergence rate, we introduce a calibration phase where we identify relations between the unknown parameters (i.e. mismatches, rotation rate and rotation angle). Calibration results show that the unknown parameters lie on a hyperplane. When the gyro is in operation, we project parameters estimated from the least square estimator onto the hyperplane. The projection will reduce the degrees of freedom in parameter estimates, thus guaranteeing persistence of excitation and improving convergence rate. Simulation results show that utilization of the projection method will drastically improve convergence rate of the least square estimator and improve gyro performance. |
Persistent Identifier | http://hdl.handle.net/10722/264947 |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Fu | - |
dc.contributor.author | Keikha, Ehsan | - |
dc.contributor.author | Shahsavari, Behrooz | - |
dc.contributor.author | Horowitz, Roberto | - |
dc.date.accessioned | 2018-11-08T01:35:24Z | - |
dc.date.available | 2018-11-08T01:35:24Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | ASME 2014 Dynamic Systems and Control Conference, DSCC 2014, 2014, v. 3 | - |
dc.identifier.uri | http://hdl.handle.net/10722/264947 | - |
dc.description.abstract | © 2014 by ASME. This paper presents an online adaptive algorithm to compensate damping and stiffness frequency mismatches in rate integrating Coriolis Vibratory Gyroscopes (CVGs). The proposed adaptive compensator consists of a least square estimator that estimates the damping and frequency mismatches, and an online compensator that corrects the mismatches. In order to improve the adaptive compensator's convergence rate, we introduce a calibration phase where we identify relations between the unknown parameters (i.e. mismatches, rotation rate and rotation angle). Calibration results show that the unknown parameters lie on a hyperplane. When the gyro is in operation, we project parameters estimated from the least square estimator onto the hyperplane. The projection will reduce the degrees of freedom in parameter estimates, thus guaranteeing persistence of excitation and improving convergence rate. Simulation results show that utilization of the projection method will drastically improve convergence rate of the least square estimator and improve gyro performance. | - |
dc.language | eng | - |
dc.relation.ispartof | ASME 2014 Dynamic Systems and Control Conference, DSCC 2014 | - |
dc.title | Adaptive mismatch compensation for rate integrating vibratory gyroscopes with improved convergence rate | - |
dc.type | Conference_Paper | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1115/DSCC2014-6053 | - |
dc.identifier.scopus | eid_2-s2.0-84929251059 | - |
dc.identifier.volume | 3 | - |
dc.identifier.spage | null | - |
dc.identifier.epage | null | - |