基于航向误差的捷联陀螺罗经标定方法  

A Calibration Method of Strap-down Gyrocompass Based on Heading Error

作　　者：廉璞 牟东[1] 叶海福[1] 张延顺[2] LIAN Pu;MU Dong;YE Haifu;ZHANG Yanshun(Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang 621999,China;Beihang University,Beijing 100191,China)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621999 [2]北京航空航天大学,北京100191

出　　处：《电光与控制》2020年第2期75-78,共4页Electronics Optics & Control

摘　　要：陀螺罗经的航向误差与航向角和器件误差之间存在着非线性映射关系,利用航向误差关系提出了一种捷联陀螺罗经标定方法。该方法根据陀螺罗经的航向效应,在分析了罗经航向误差传播机理的基础上,对航向误差进行曲线拟合,建立航向角与航向误差的数学模型,根据航向误差关系完成对陀螺罗经的标定。实验数据表明:所提标定方法能够有效减小航向误差,提高陀螺罗经的使用精度,具有实际应用价值。The heading error of gyrocompass has a nonlinear mapping relationship with the heading angle and the device error.In this paper a strap-down gyrocompass calibration method is proposed based on the heading effect of gyrocompass.On the basis of analyzing the propagation mechanism of heading error of gyrocompass curve fitting is made to the heading error and the mathematical models of heading angle and heading error is established.Thus the gyrocompass calibration is completed according to the heading error relationship.The experimental data shows that the proposed calibration method can effectively reduce the heading error and improve the accuracy of gyrocompass which has practical application value.

关 键 词：陀螺罗经 航向效应 标定 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计]