Magnetic sensor compensation technology by ellipsoid to sphere

FAN Xin-lin

doi:10.13873/J.1000-9787(2015)01-0021-03

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Magnetic sensor compensation technology by ellipsoid to sphere

更新时间：2025-09-11

- Magnetic sensor compensation technology by ellipsoid to sphere
- Vol. 34, Issue 1, Pages: 21-23+31(2015)
- 作者机构：
  
  北京中航智科技有限公司
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)01-0021-03
  CLC： TP212.13
- Published：2015
- 稿件说明：
移动端阅览
[1]范欣林.由椭球到圆球的磁传感器补偿技术[J].传感器与微系统,2015,34(01):21-23+31.

FAN Xin-lin. Magnetic sensor compensation technology by ellipsoid to sphere[J]. 2015, 34(1): 21-23+31.
[1]范欣林.由椭球到圆球的磁传感器补偿技术[J].传感器与微系统,2015,34(01):21-23+31. DOI： 10.13873/J.1000-9787(2015)01-0021-03.

FAN Xin-lin. Magnetic sensor compensation technology by ellipsoid to sphere[J]. 2015, 34(1): 21-23+31. DOI： 10.13873/J.1000-9787(2015)01-0021-03.

摘要

针对低成本电子罗盘在大倾角情况下航向角误差急剧增大这一问题

将误差的补偿假设为由椭球到圆球过程。研究了基于姿态误差矩阵补偿的校正算法

将电子罗盘的补偿技术由平面椭圆补偿拓展到空间椭球补偿。通过最小二乘法、牛顿法、最速下降法等手段求解得到了最终的姿态误差矩阵。通过实验可以证实:此方法可以有效减小电子罗盘在大倾角情况下的航向误差

并且具有成本低、简单和可靠性高等优点。

Abstract

Aiming at problem of heading angle error in case of a big dip sharply increase of low-cost electronic compass

error compensation is assumed as from ellipsoid to sphere process. Correction algorithm based on attitude error matrix compensation is studied

electronic compass compensation technique is expanded from planar ellipse compensation to spacial ellipsoid compensation. By means of the least squares method

Newton method

the steepest descent method solve and obtain the final posture error matrix. Experiments can confirm that this method can effectively reduce heading error of electronic compass in the case of big dip

and has advantages of low cost

simple and high reliability.

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Keywords

references

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Related Institution

Department of Instrument,School of Mechanical Engineering,Nanjing University of Science & Techndogy

Basic Department,Nanjing Institute of Politics PLA

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