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�������պ����ѧѧ�� 2006, Vol. 32 Issue (11) :1377-1379    DOI:
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Timing for miniaturized three-cluster fiber optic gyro
Pan Xiong, Song Ningfang, Jin Jing, Tian Haiting*
School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� Eigen frequency of fiber optic gyro (FOG) is determined by the length of fiber coil. Since the length cannot be controlled accurately while winding, timing generator should trace the eigenfrequency expediently without modification of hardware. The influences of veracity and stabilization of modulation-demodulation signal on the scale factor of FOG was analyzed through the theory of correlation-based measurement. One chip of field programmable gate arrays (FPGA) was used to generate three timings of miniaturized three-cluster FOG within resourceconstraints, and the capacity of frequency tracing was calculated within the eigenfrequency range of middle precision FOG. Experimental results indicate that the timing scheme satisfied the requirement of miniaturized three-cluster FOG to modulation-demodulation signal.
Keywords�� fiber optic gyro   phase modulation   field programmable gate arrays(FPGA)     
Received 2006-04-30;
About author: �� ��(1977-),��,������÷��,��ʿ��,buaapx@aspe.buaa.edu.cn.
����, ������, ��, �ﺣͤ.����һ����С�͹��������ǵ�ʱ�����[J]  �������պ����ѧѧ��, 2006,V32(11): 1377-1379
Pan Xiong, Song Ningfang, Jin Jing, Tian Haiting.Timing for miniaturized three-cluster fiber optic gyro[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(11): 1377-1379
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