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Affects of temperature and error compensation for fiber optic gyro
Wang Hai*
College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China

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Abstract�� The thermal characteristic of fiber optic gyro(FOG) is one of difficult questions, it is a efficient method to improve the thermal characteristic of FOG by modeling. The characteristic of thermal affect induced nonreciprocity of optic loop was introduced , and it is one of the main reasons that affect the steability of Bias and scale factor of FOG. The thermal affect produced by the inner instruments of FOG is the main reason of warm-up time. And the warm-up time can be shortened by modeling and compensating. The influence of surrounding temperature for FOG is random. The error can be modeled and compensated by temperature model. The error model of temperature drift and scale factor of FOG is settled. The raw data of FOG is compensated with the model and the validity of the model is tested.
Keywords�� fiber optic gyro   line regression   temperature modeling     
Received 2006-04-30;


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����.���������¶�Ӱ��������[J]  �������պ����ѧѧ��, 2007,V33(05): 549-551
Wang Hai.Affects of temperature and error compensation for fiber optic gyro[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(05): 549-551
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