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�������պ����ѧѧ�� 2006, Vol. 32 Issue (07) :769-772    DOI:
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Investigation of random error model for fiber optic gyroscope
Wang Xinlong, Du Yu, Ding Yangbin*
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ �����ǵĹ������Ⱦ����Ź��Բο�ϵͳ�ľ���,Ϊ�˼�С�����ǵ�������侫��,��Ҫ�������������й����뾫ȷ��ģ.���Ӧ��ARMA,Allan������������������ܶ�PSD(Power Spectrum Density)���������϶Թ�������FOG(Fiber Optic Gyroscope)��������Լ���ģ�����������о�.����Allan���PSD�������Թ�����������źŵķ���,��Ч�ط��벢ȷ��Ӱ���������������ܵļ�����Ҫ������Դ,�����������Ĺ�������ARMAģ�ͺ�ARģ�͵ľ��Ƚ���������.�Թ�������ʵ�����ݵķ�������Allan�����������PSD�������Թ����������������������һ����,ʱ��ARMAģ���ǽ�����������������ģ�͵�һ����Ч����.
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Abstract�� The performance of gyroscope decides the accuracy of inertial reference system. In order to diminish the error of the gyroscope and to improve its precision, the gyroscope′s error model was accurately founded. Methods of PSD(power spectrum density), ARMA, and Allan variance were federally used to study of the error speciality and modeling technology of the FOG(fiber optic gyroscope). The Allan variance and PSD were utilized to analyze the output of the FOG, and some main noise of the fiber optic gyroscope could be extracted and confirmed, then the performance of ARMA and AR of the FOG was evaluated. By analyzing the practical data of the FOG, it is shown that Allan variance and PSD are identical with analyzing the error of the fiber optic gyroscope, and ARMA is an effective method to found the random error model for the fiber optic gyroscope.
Keywords�� fiber optic sensors   random errors   error statistics   model analysis     
Received 2005-08-17;
Fund:

����֧�ż�������������Ŀ(044.107);�����Ƽ��ʽ�������Ŀ(51448020105HK0101)

About author: ������(1969-), ��, �������,������, xlwang@buaa.edu.cn.
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������, ����, �����.��������������ģ�ͷ���[J]  �������պ����ѧѧ��, 2006,V32(07): 769-772
Wang Xinlong, Du Yu, Ding Yangbin.Investigation of random error model for fiber optic gyroscope[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(07): 769-772
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