全光纤陀螺信号处理技术研究  

The Research of All Optical Fiber Gyro Signal Processing Technique

作　　者：李嵘[1] 田蔚凤[1] 白洁雁[1] 卫炎[2] 

机构地区：[1]上海交通大学,上海200030 [2]航天时代仪器公司上海光纤中心,上海200233

出　　处：《上海航天》2003年第3期16-19,共4页Aerospace Shanghai

摘　　要：采用数字、模拟混合信号处理方法 ,模拟信号处理主要针对光源驱动、相位调制器 (PZT)的控制、相位跟踪、探测器信号的滤波和解调进行 ,数字信号处理器 (DSP)根据模拟解调信号进行Sagnac相移计算、相敏参考信号自动选择 ,以及大小量程分档控制。此方法可有效发挥模拟、数字信号处理的优点 。All fiber optical gyro (FOG) signals processing technique was introduced in this paper. Digital analog hybrid signals processing method was discussed. Analog signals processing was applied to light driving, PZT control, phase tracing, signal filtering of detector, and signal demodulating, while digital signal processing was used to calculate Sagnac phasing, automatically select phase sensitive reference signal, and scale control. By using this kind of method, the performance of FOG can be improved.

关 键 词：全光纤陀螺 相位跟踪技术 信号滤波 数字信号处理器 相位调制器 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]