## 旋转炮弹地磁传感器标定方法研究

Title   Study on Calibration of Rotating Shells Sensor
Abstract
Due to the geomagnetic field has the characteristics of long-term stability, based on three axis magnetic sensor geomagnetic measurement technology is becoming a hot spot of research at domestic and abroad.However because of the limitations of technological level constraints and the materials of magnetic sensor itself,  a series of errors will be caused to the geomagnetic sensor generates .It will seriously affect the accuracy and precision of the measurement of the geomagnetic field, if these errors not corrected . Therefore,it is urgent to study the error factors, and establish the error model and error correction model to obtain more accurate and precise geomagnetic data. 源￥自%六^^维*论-文+网=www.lwfree.cn
At first, this paper analyzes  sources of the geomagnetic sensor error and overview its error model, environmental error model and comprehensive error model,and use geomagnetic field theory value and the comprehensive error model to get the value of measurement of the magnetic field. Then according to the reasons which cause the error to overview the error of soft and hard magnetic error correction model of magnetic field measurement calibration,and then correct the calibration results.
Keywords  Geomagnetic Sensor  Three Axis Magnetic Sensor  Error Model  Error Correction Model

1  绪论 1
1.1  课题研究背景及意义 1
1.2  国内外研究现状 1
1.2.1  国内研究现状 1
1.2.2  国外研究现状 2
1.3  本文研究的主要内容。 3
2  地磁传感器误差模型分析。 5
2.1  自身误差分析 5
2.2  安装误差分析 6
2.3  环境干扰误差分析。 8
2.4  综合误差分析。 9
2.4.1  综合误差模型 9
2.4.2  误差模型的椭球证明。 10
2.5  地磁传感器测量值 11
3  地磁传感器误差标定方法分析 12
3.1  三轴不正交及灵敏度标定分析 12
3.2  基于椭球拟合的标定方法分析。  12
3.2.1  椭球曲面拟合 12
3.2.2  牛顿迭代算法。 13
3.2.3  带椭圆约束的最小二乘椭圆拟合方法。 14
3.3  基于高斯牛顿迭代的标定分析 15
3.4  点积不变校正方法分析 16
3.5  最小二乘标定方法分析 17

1  绪论
1.1  课题研究背景及意义

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