双通道光纤陀螺捷联惯导的设计与实现

针对光纤陀螺惯导精度和动态性能相互矛盾的问题,从实际应用需求出发,提出了一种高精度和大量程的双通道光纤陀螺捷联惯导系统.介绍了设计的基本原理和系统组成,并详细阐述了大小光纤陀螺设计、双通道加速度计设计和软件算法设计等关键技术,最后研制了一套原理样机.通过系统级标定试验、量程和陀螺精度试验、高动态振动环境试验和动态跑车试验等对样机进行验证,结果表明该技术方案具有可行性,为其他光纤陀螺惯导系统提供了新的设计思路.

Design and Implementation of Dual-channel FOG Strapdown Inertial Navigation System

Aiming at the contradiction between the precision and dynamic performance of the fiber optic gyroscope (FOG) inertial navigation systems, a new dual-channel FOG strapdown inertial navigation system with high precision and large dynamic range is proposed. The basic principle and system composition of the design are introduced. The key technologies such as the design of the large and small FOGs, the design of the two channel accelerometer and the software algorithm are described in detail. Finally, a set of principle prototype is designed. Through the system-level calibration test, range and gyro precision test, high dynamic vibration test and dynamic vehicle test, the results show that the technical scheme is feasible, and provides a new design idea for other FOG inertial navigation systems.