摘要
就再入式集成光学陀螺 (IOG)的原理进行了理论分析 ,通过对敏感环长度为 2 0m的集成光学陀螺光纤仿真系统的开环输出信号的分析 ,验证了输出信号中再入分量的存在 ,从而在实验上验证了再入的原理。为了从陀螺输出信号中提取高阶的再入信号 ,提出了一种占空比不为 0 .5的方波调制方案 ,使得在采样时间间隔τ内 ,只有对应阶次的再入信号被偏置在灵敏度最大的位置。这种方案有望给有源和无源再入式集成光学陀螺的信号读出提供一种有效的解决方法。
The theoretical analysis and experimental verification of the principle of re-entrant IOG were carried out here. The experimental setup for analog simulation was established with Sagnac Sensing Ring (SSR) length of 20m. Based on the analysis of open loop output signal of the system, the signal of re-entrant part was verified. In order to get the high order re-entrant signal, a new modulation method using square waveform which duty ratio is not equal to 0.5 was suggested, in which the corressponding order of re-entrant signal was biased at maximum sensitivity. It provides a way to solve the problems in signal readout from ARE-IOG and PRE-IOG.
出处
《红外与激光工程》
EI
CSCD
北大核心
2001年第3期198-201,共4页
Infrared and Laser Engineering
基金
"九五"国防预研项目 (8.7.1 .7)
关键词
集成光学陀螺
再入
方波调制
Integrated optic gyroscope
Re-entrant
Square-waveform modulation
