Invention Grant
US09127947B2 State estimator for rejecting noise and tracking and updating bias in inertial sensors and associated methods
有权
用于拒绝噪声的状态估计器，跟踪和更新惯性传感器和相关方法中的偏差
- Patent Title: State estimator for rejecting noise and tracking and updating bias in inertial sensors and associated methods
- Patent Title (中): 用于拒绝噪声的状态估计器，跟踪和更新惯性传感器和相关方法中的偏差
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Application No.: US12467881Application Date: 2009-05-18
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Publication No.: US09127947B2Publication Date: 2015-09-08
- Inventor: Mark A. Minor , Eric A. Johnson , Stacy J. Morris Bamberg
- Applicant: Mark A. Minor , Eric A. Johnson , Stacy J. Morris Bamberg
- Applicant Address: US UT Salt Lake City
- Assignee: University of Utah Research Foundation
- Current Assignee: University of Utah Research Foundation
- Current Assignee Address: US UT Salt Lake City
- Agency: Workman Nydegger
- Main IPC: G01R19/00
- IPC: G01R19/00 ; G01C21/16 ; G01R31/28
Abstract:
A method and system for tracking and updating bias in an inertial sensor by determining a maximum bias drift and a noise band for a sensor, determining a prior bias value of the sensor, and measuring a current bias value of the sensor. The method and system can further include calculating a bias difference between the prior bias value and the current bias value, and updating the prior bias value with the current bias value if the current bias value is within the noise band and the bias difference is less than or equal to the maximum bias drift.
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