TY - GEN
T1 - A phase modulation method for improving the scale factor stability of fiber-optic gyroscope
AU - Chen, Shitong
AU - Cheng, Jianhua
AU - Gao, Wei
PY - 2008
Y1 - 2008
N2 - The usual scheme of Fiber-Optic Gyroscope(FOG) is digital single closed-loop ,but the scale factor stability is affected by the variation of half-wave voltage of 3 LiNbO3 integrated optic phase modulator .The half-wave voltage changes with the variation of the integrated optic phase modulator performance dependence on temperature and the bias voltage applied to the phase modulator .In order to improve the scale factor stability , double closed-loop scheme of FOG with square wave bias modulation is used to compensate the the variation of half-wave voltage ,but it is inefficient at low rates. The double closed-loop scheme of FOG with " four-bias-state" bias modulation is used to improve the compensation efficiency and SNR , and the bias modulation equations are presented here. The scale factor stability of the new scheme is improved about by one time than the usual scheme . Index Terms -scale factor stability, half-wave voltage, fourbias- state, integrated optic phase modulator.
AB - The usual scheme of Fiber-Optic Gyroscope(FOG) is digital single closed-loop ,but the scale factor stability is affected by the variation of half-wave voltage of 3 LiNbO3 integrated optic phase modulator .The half-wave voltage changes with the variation of the integrated optic phase modulator performance dependence on temperature and the bias voltage applied to the phase modulator .In order to improve the scale factor stability , double closed-loop scheme of FOG with square wave bias modulation is used to compensate the the variation of half-wave voltage ,but it is inefficient at low rates. The double closed-loop scheme of FOG with " four-bias-state" bias modulation is used to improve the compensation efficiency and SNR , and the bias modulation equations are presented here. The scale factor stability of the new scheme is improved about by one time than the usual scheme . Index Terms -scale factor stability, half-wave voltage, fourbias- state, integrated optic phase modulator.
KW - Fourbias
KW - Half-wave voltage
KW - Integrated optic phase modulator.
KW - Scale factor stability
KW - State
KW - Terms
UR - https://www.scopus.com/pages/publications/65349083689
U2 - 10.1109/ICMA.2008.4798722
DO - 10.1109/ICMA.2008.4798722
M3 - 会议稿件
AN - SCOPUS:65349083689
SN - 9781424426324
T3 - Proceedings of 2008 IEEE International Conference on Mechatronics and Automation, ICMA 2008
SP - 37
EP - 42
BT - Proceedings of 2008 IEEE International Conference on Mechatronics and Automation, ICMA 2008
T2 - 2008 IEEE International Conference on Mechatronics and Automation, ICMA 2008
Y2 - 5 August 2008 through 8 August 2008
ER -