The fiber optic gyroscope is a new rotation sensor, and it is based on the Sagnac effect. The bandwidth of fiber optic gyroscopes is wider than mechanical gyroscopes. It is difficult to test dynamic characteristics of fiber optic gyroscopes with traditional equipment. Considered the principle of digital closed-loop fiber optic gyroscopes, the technique of testing dynamic characteristics was schemed out by means of adding signal to integrated optic modulator. The phase difference due to rotation rate was replaced with the phase difference generated by ramp phase modulation. Based on system transfer function, equivalence of the technique was proved. Step response and frequency response were tested. The conclusion that the bandwidth of FOG exceeded 2 kHz was approved.
Lefèvre Hervé C. The fiber-optic gyroscope[M]. Boston:Artech House,1993
Bielas M S. Stochastic and dynamic modeling of fiber gyros . Fiber Optic and Laser Sensors XII; Proceedings of the Meeting . Bellingham:Society of Photo-Optic Instrumentation Engineers, 1994. 240~255
Lin Jen-Dau, Kuo Kung-Hung, Yeh Chun-Shin. Phase domain model of a second order fiber-optic gyroscope dynamic system .Proceedings of 1994 IEEE Instrumentation and Measurement Technology Conference(Part 1) . Piscataway:IEEE, 1994.420~423
Yeh Y, Kim D I, Kim B Y. New digital close-loop processor for a fiber-optic gyroscope[J].IEEE Photonics Technology Letters.1999,11(3):361-363
Mintchev M, Irvine-Halliday D, Tabler H. Computer modeling of microelectronic closed loop fiber optic gyroscope . Proceeding of the 1999 IEEE Canadian Conference on Electrical and Computer Engineering . Piscataway:Institute of Electrical and Electronics Engineers Inc, 1999. 633~638
Ѧ����. ����MATLAB/Simulink��ϵͳ���漼����Ӧ��[M]. ����:�廪��ѧ������, 1996 Xue Dingyu. System simulation technique with MATLAB/Simulink [M]. Beijing:Tsinghua University Press, 1996(in Chinese)
�ں���,�Ŵ���,�� ��. ����DSPʵ�ֹ������������źŴ����еĶ������ת��[J]. ��ؼ���,2003,22(3):12~14 Yu Haicheng, Zhang Chunxi, Wang Yan. The implementation for multi-rate digital sigital processing in FOG with DSP devices[J]. Measurement & Control Technology, 2003, 22(3):12~14(in Chinese)