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An optical signal processing model for the interferometric fiber optic gyro

作者: Joseph M Aein; United States. Advanced Research Projects Agency.
出版商: Santa Monica, CA : RAND, 1995-
版本/格式:   打印圖書 : 英語所有版本和格式的總覽
提要:
This report presents the results of a communication theoretic model used to analyze the operation of Interferometric Fiber Optic Gyroscopes (IFOG). The IFOG is an all-solid-state rotation-rate sensor employed in miniature inertial measurement units (MIMU). The IFOG can achieve a navigation grade of performance (0.01 degree/hour drift rate) and offers the considerable advantage of reducing instrument costs by a  再讀一些...
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文件類型 圖書
所有的作者/貢獻者: Joseph M Aein; United States. Advanced Research Projects Agency.
ISBN: 0833016423 9780833016423
OCLC系統控制編碼: 32312401
註釋: "MR-482/1-ARPA"--Page [4] of cover, v. 1.
描述: volumes <1> : illustrations ; 23 cm
内容: v. 1. Deterministic model.
責任: Joseph M. Aein ; prepared for the Advanced Research Projects Agency.

摘要:

This report presents the results of a communication theoretic model used to analyze the operation of Interferometric Fiber Optic Gyroscopes (IFOG). The IFOG is an all-solid-state rotation-rate sensor employed in miniature inertial measurement units (MIMU). The IFOG can achieve a navigation grade of performance (0.01 degree/hour drift rate) and offers the considerable advantage of reducing instrument costs by a factor of two or more over the current ring laser gyroscope (RLG) technology base. A simplified classical propagation model is used to describe the optical beams employed. Optical signal modulation is impressed with the following goals: (1) increase the linearity of the rotation-rate measurement and (2) mitigate the deleterious effects of the optical scatter noise unavoidably generated by the desired light beams as they traverse the optical pathways of the IFOG. This report deals with goal (1) above. The following are analyzed: (1) AC bias modulation used to linearize the IFOG instrument; (2) closed-loop, feedback operation to extend the dynamic range; and (3) serrodyne operation. The analysis establishes the performance relationships among the appropriate optical signal parameters and allows for their optimization.

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