发明名称 |
METHOD FOR MEASURING FORCE-DEPENDENT GYROSCOPE SENSITIVITY |
摘要 |
A force-effect model of the effects of acceleration on the output of a gyro triad is determined. Rotation sequences are then devised to permit excitatio n and observation of force-effect model parameters in order to provide calibration information for these parameters. A state diagram containing the gyro triad force-effect model parameters is derived from the force-effect model, where moving from one position in the state diagram to another positi on indicates the gyro triad error which would occur in rotating the gyro triad according to a corresponding motion. Searching for all possible closed loop paths achievable through the state diagram, by a multiple-axes rate table wi th a specified number of rotations, separates gyro triad error calibration from the accelerometer calibration. Closed loop paths having minimal lengths and exhibiting larger error sensitivity are chosen to perform error parameter calibration and reduce force-dependent gyroscopic sensitivity.
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申请公布号 |
CA2517018(A1) |
申请公布日期 |
2004.09.30 |
申请号 |
CA20032517018 |
申请日期 |
2003.11.12 |
申请人 |
NORTHROP GRUMMAN CORPORATION |
发明人 |
TAZARTES, DANIEL A.;MARK, JOHN;LIU, G. KEVIN |
分类号 |
G01C17/38;G01C19/00;G01C19/56;G01C21/16;G01C25/00;G01L1/00;(IPC1-7):G01C19/56 |
主分类号 |
G01C17/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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