磁罗盘姿态解算及误差补偿  

Attitude Solution and Error Compensation of Magnetic Compass

作　　者：李凤英[1] 高田[1] 羊彦[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129

出　　处：《计算机测量与控制》2011年第7期1771-1773,1783,共4页Computer Measurement &Control

基　　金：航天科技创新基金项目(N7CH0003)

摘　　要：详细介绍了磁罗盘的姿态解算原理,并分析了造成磁罗盘解算误差的主要因素,提出了基于最小二乘的36位置法,重点对其中的罗差以及制造误差中的零位误差和灵敏度误差进行了补偿修正;并用项目试验验证得出:当只进行零位误差和灵敏度误差修正时,磁罗盘的偏航角解算误差最大可达3°;而经过罗差补偿后,磁罗盘的偏航角解算误差可控制在0.5°以内;实验结果表明,经过补偿后,磁罗盘的解算精度明显提高,且成本低,使用简便,适用范围广。It introduces attitude solution theory of magnetic compass in detail,analyzes the major factors that caused the error of magnetic compass,proposes 36 position method based on least square and emphasizes on compensation and correction in magnetic deviation and the zero position error and sensitivity error in manufacturing errors.This experimental verification obtained by the project： when only correct the zero error and sensitivity error,the yaw angle solution error of magnetic compass can be up to 3°;but the yaw angle solution error of magnetic compass can be controlled in 0.5°or less after the compensation of magnetic deviation.The results show that,the magnetic compass solution accuracy is improved significantly after compensation.In addition,this method cost lowly and is also widely used.

关 键 词：磁罗盘 姿态解算 误差补偿 罗差 最小二乘 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]