摘要
基于MEMS惯性传感器的电子罗盘精度高、体积小、抗干扰能力强,可为导航系统提供初始姿态数据。针对MEMS惯性传感器的精度问题,进行了数据预处理,包括野店剔除和温度补偿;针对罗差是影响电子罗盘精度的最主要因素,进行了测量原理分析,并实现了罗差的椭圆误差补偿算法;从硬件设计和软件设计两方面详细研究了电子罗盘的实现过程。实验证明,经过数据预处理和罗差补偿后的电子罗盘精度可达1°,能够为导航系统提供精确的初始姿态信息,适用于普通民用导航领域。
The electronic compass based on MEMS inertial sensor has high precision,small size and strong antiinterference ability,which can provide initial attitude data for the navigation system.In order to solve the accuracy problem of the MEMS inertial sensor,data preprocessing was carried out,including wild shop culling and temperature compensation.Aiming at the deviation of the magnetic compass,which is the main factor affecting the accuracy of the electronic compass,the measurement principle was analyzed and an elliptical error compensation algorithm for the deviation was implemented.The realization process of the electronic compass was studied in detail from two aspects of hardware design and software design.The experimental result shows that the precision of the electronic compass after data preprocessing and compass compensation reaches 1°,which can provide accurate initial attitude information for the navigation system,and is suitable for the common civil navigation field.
作者
梁娜
杨阳
丁丹
杨柳
LIANG Na;YANG Yang;DING Dan;YANG Liu(Department of Electronic and Optical Engineering,Aerospace Engineering University,Beijing 101416,China;No.95906 Unit,Beijing 102200,China)
出处
《计算机仿真》
2025年第4期552-556,共5页
Computer Simulation
关键词
惯性传感器
电子罗盘
罗差补偿
初始姿态
Inertial sensor
Electronic compass
Environment error compensation
Initial attitude
