一种旋转调制惯导系统级时间误差标定方法  

A Method for the Calibration of the Time Error of the Rotating Modulation Inertial Navigation System

作　　者：倪翔 任准 Ni Xiang;Ren Zhun(Shaanxi Aircraft Industry Co.,Ltd.,Hangzhong,Shaanxi 723213,CHN)

机构地区：[1]陕西飞机工业有限公司,陕西汉中723213

出　　处：《模具制造》2025年第5期150-153,156,共5页Die & Mould Manufacture

摘　　要：提出了一种旋转调制惯导系统级时间误差标定方法。对旋转惯导系统内陀螺时间误差、加速度计时间误差、陀螺加速度计时间不同误差进行了误差分析,构建了包括时间误差在内的卡尔曼滤波标定模型。通过静态仿真分析,对提出的标定方法和建模分析过程进行了验证。该标定方法可以准确估计时间误差,补偿后可以明显提高旋转惯导长航时导航精度。This research presents a method for the calibration of the time error of the rotating modulation inertial navigation system.In this paper,the error analysis of the internal gyroscope error,acceleration interval error and the time error of the gyroscopic acceleration is analyzed,and the Kalman filtering calibration model,which includes the time error,is built.Through static simulation analysis,the proposed calibration method and the modeling analysis process are verified.The results show that the calibration method can accurately estimate the time error,and the accuracy of navigation can be significantly improved after compensation.

关 键 词：旋转调制惯导 陀螺时间误差 时间不同步误差 卡尔曼滤波 

分 类 号：V24[航空宇航科学与技术—飞行器设计]