摘要
轻小型化研究是近年来光纤陀螺的一大发展趋势。介绍了一种三轴一体化光纤陀螺的分时复用闭环控制方案及其系统结构,分析了分时复用闭环反馈控制的信号特征变化和分时调制对三轴陀螺系统精度的影响,建立了三轴光纤陀螺分时复用闭环控制系统的动态模型和简化离散模型,推导出了闭环传递函数及误差传递函数,进行了静态性能分析,为进一步优化系统设计提供指导。最后进行了实验测试,结果表明该三轴光纤陀螺分时复用闭环控制方案具有可行性。
Miniaturization is a developing direction of fiber optic gyroscopes now. A scheme and system structure of time division multiplexing closed-loop control for three-axis fiber optic gyroscopes was introduced in detail. The change of signal character for time division multiplexing closed-loop feedback control was analyzed, and the effect of time-sharing modulation on the precision of three-axis fiber optic gyroscopes was construed. The dynamic model and predigested scatter model of time division multiplexing closed-loop control for three-axis fiber optic gyroscopes were founded. Then the closed-loop transfer function and error transfer function were accounted and the static state capability was analyzed for optimizing system design of three-axis fiber optic gyroscopes. Finally, the experimental prototype of this time division multiplexing closed-loop control for three-axis fiber optic gyroscopes was tested. The results show the feasibility of control scheme.
出处
《红外与激光工程》
EI
CSCD
北大核心
2011年第11期2195-2200,共6页
Infrared and Laser Engineering
关键词
三轴光纤陀螺
分时复用
闭环控制
动态模型
triaxial fiber optic gyroscopes
time division multiplexing
closed-loop control
dynamic model
