光纤陀螺动态寻北转位控制系统设计

Transposition Control System Design of Dynamic North-seeking with Fiber Optic Gyroscope

摘要:

针对光纤陀螺动态寻北仪实际应用中存在的转位误差以及高频测量噪声问题,对寻北仪转位机构引入低通滤波和反馈回路,设计出了一种新的转位控制系统,有效地减小了由于光纤陀螺和转位机构的误差带来的系统误差,从而提高了动态寻北仪的寻北精度；实验结果表明,相同条件下该控制系统能有效缩短寻北时间,提高定位精度至4″,具有较好工程实用前景。

Abstract:

An effective transposition control system design is provided to reduce the system error from fiber optic gyroscope(FOG) and turntable and improves the accuracy of dynamic north-seeker focusing on the transposition error and high-frequency measurement noise of dynamic north-seeker with FOG in practice application, which can be reduced by adding low pass filter(LPF) and feedback circuit. The experimental results show that it has a good engineering application value for the control system for shorter time of seeking north and higher orientation accuracy of 4″ comparing to the original system on the same condition.