Resonator Fiber Optic Gyroscope with an All Digitalized System

摘要：

Resonator fiber optic gyroscope has the potential to achieve the inertial navigation system requirement with a short sensing coil. An all digitalized system is constructed including the signal modulation /demodulation and a proportional integral (PI) controller in a single field programmable gate array. Under this scheme, the serrodyne phase modulation technique is adopted, which is of benefit to overcome the backscattering induced noise and easy to implement in closed-loop operation. The phase modulation index is optimized to achieve high carrier suppression. The PI controller is adopted in the frequency servo loop to eliminate the residual error at the lock-in frequency. A bias stability of 5.2×10-4 rad/s in 500 seconds is demonstrated experimentally.

作者: Xuhui Yu Huilian Ma Zhonghe Jin

作者单位: Authors are with the Department of Information Science and Electronic Engineering,Zhejiang University,Hangzhou,China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Systems and Control in Aeronautics and Astronautics(第三届航空航天系统与控制国际会议 ISSCAA 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 823-826

在线出版日期: 2010-01-08（万方平台首次上网日期，不代表论文的发表时间）