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An optical signal processing model for the interferometric fiber optic gyro

Auteur : Joseph M Aein; United States. Advanced Research Projects Agency.
Éditeur : Santa Monica, CA : RAND, 1995-
Édition/format :   Livre imprimé : EnglishVoir toutes les éditions et tous les formats
Base de données :WorldCat
Résumé :
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  Lire la suite...
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Détails

Format : Book
Tous les auteurs / collaborateurs : Joseph M Aein; United States. Advanced Research Projects Agency.
ISBN : 0833016423 9780833016423
Numéro OCLC : 32312401
Notes : "MR-482/1-ARPA"--Page [4] of cover, v. 1.
Description : volumes <1> : illustrations ; 23 cm
Contenu : v. 1. Deterministic model.
Responsabilité : Joseph M. Aein ; prepared for the Advanced Research Projects Agency.

Résumé :

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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