地磁场矢量

后两种磁干扰数值计算时，采用载体坐标系，且假定地磁场矢量（包括其大小和方向）在地心坐标系中保持不变，且在空间均匀分布。

In the numerical calculation of the two latter magnetic interference , we use aircraft coordinate system and hypothesis the geomagnetic field vector unchanged in the inner earth coordinate system and distributed uniformly in space .

实验测量了地磁场矢量在水平面各方向上的分量大小，得到的实验结果与理论值吻合得较好，证明该系统能够用于基于地磁场测量的定向导航。

The magnetic field at level of 1 nT can be measured in the experimental system , and the measured results for the earth magnetic fields in different directions agree with the theoretic prediction , which proves that the system can be used in the navigation and orientation fields .

以地磁场强度矢量的模为观测量，将Unscented卡尔曼滤波（UKF）用于近地卫星的磁测自主导航。

The unscented Kalman filter ( UKF ) was applied for geomagnetism autonomous navigation in LEO satellite in this paper when the magnitude of the geomagnetic field vector was served as observed value .

从而推知：地磁场的矢量特性和纬度效应对金属磁记忆检测与诊断技术适用性和可靠性的影响都不大。

Thereby it can be deduced that the vector character and latitude effect of the geomagnetic field exert little influence upon the applicability and reliability of metal magnetic memory testing and diagnostic technique .