发明名称 |
Apparatus and method using digitally controlled integration for signal detectionwith improved noise characteristics |
摘要 |
A signal conditioning circuit reduces an interferrometric fiber optic gyro (IFOG) noise, the IFOG including a light source, Integrated Optics Chips (IOC) and a coupler to output an optical power signal corresponding to a rotation-induced phase shift in a fiber coil of the IFOG. The signal conditioning circuit includes a photodiode that converts the optical power signal to a corresponding electrical compensation signal and one or more switched integrators that receive and process the electrical compensation signal by selectively switching between a plurality of modes of each one of the one or more switched integrators. A method of signal conditioning in the IFOG to reduce IFOG noise includes the steps of converting the optical power signal to a corresponding electrical compensation signal and selectively integrating a current of the electrical compensation signal using at least one switched integrator. |
申请公布号 |
AU5171801(A) |
申请公布日期 |
2001.10.03 |
申请号 |
AU20010051718 |
申请日期 |
2001.03.16 |
申请人 |
HONEYWELL INTERNATIONAL, INC. |
发明人 |
MICHAEL K. SCRUGGS;ROBERT A. KOVACS;MING-HSING YU;PETER A. WALL |
分类号 |
G01C19/72 |
主分类号 |
G01C19/72 |
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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