摘要
针对传统使用磁性物质对磁传感器误差补偿繁琐、精度不高;多位置标定法对设备要求高等难题。论文在分析磁传感器各项误差的基础上,建立误差模型;根据磁传感器误差模型证明了磁传感器数据分布在椭球面这一假设,进而在椭球约束的前提下利用最小二乘拟合方法,求取误差参数,对磁传感器各项误差予以补偿,实验结果表明,该标定方法能够有效地补偿磁传感器硬磁干扰、软磁干扰、零偏、非正交误差、刻度因数等误差项。
Aiming at the problems that the traditional methods use magnetic materials in magnetic sensor error compensation is trival,low precision,and multi position method of calibration requires higher precision equipment,in this paper,errors model is established on the basis of the analysis of the magnetic sensor errors,Based on this error model,a hypothesis that the magnetic sensor data distribution in a ellipsoid,using the least squares fitting method to calculate the ellipsoid parameters.On the premise of ellipsoid constraint,the error parameter is calculated and the error of magnetic sensors is compensated.The experiment result shows that the calibration method can effectively compensate the magnetic sensor errors which contain hard magnetic interference,soft magnetic interference,zero bias,nonorthogonal error,and scale factor.
出处
《舰船电子工程》
2017年第1期41-44,126,共5页
Ship Electronic Engineering
基金
国家自然科学基金资助项目(编号:41506220)资助
关键词
磁传感器
误差模型
椭球拟合
标定补偿
magnetic sensor
error model
ellipsoid fitting
calibration and compensation
