基于局部样本三轴磁传感器校准参数求解  

Calibration Parameters Solving of Three-axis Magnetic Sensor Based on Local Samples

作　　者：庞学亮[1] 江鹏飞 杨慧 PANG Xueliang;JIANG Pengfei;YANG Hui(Wuhan Institute of Technology, Wuhan 430205, China)

机构地区：[1]武汉工程大学,湖北武汉430205

出　　处：《探测与控制学报》2022年第2期25-29,共5页Journal of Detection & Control

摘　　要：针对三轴磁传感器校正椭球模型参数求解,在局部样本情况下其求解精度很差的问题,提出基于局部样本三轴磁传感器校准参数求解方法。该方法采用带约束最小二乘法,通过增加模型参数求解约束条件,保证拟合的模型为椭球体模型,以提高参数求解的精度。数值仿真和实测数据计算结果表明,该方法在局部样本下,仍然可以保证参数较高的求解精度。该方法不仅适用于最小二乘法模型参数求解,可以拓展应用到其他寻优参数求解方法。Aiming at the accuracy of the solution was very poor in the case of local samples,a method for solving the calibration parameters of the three-axis magnetic sensor based on the local samples was proposed.Constrained least-squares could be used to improve the accuracy of the parameter solution by adding constraints to the model parameter solution and fitting the model as a spherical model.The results of numerical simulation and measured data showed that the method could still guarantee higher solution accuracy under local samples.This method was not only suitable for least-squares model parameter solution,but also could be extended to other optimization parameter solution methods.

关 键 词：三轴磁传感器 椭球体模型 约束最小二乘 

分 类 号：TM936.1[电气工程—电力电子与电力传动]