地磁场

To compensate the magnetic deviation produced by the soft iron and hard iron distortion in attitude and heading reference system, a recursive least square algorithm using continuous magnet field information was developed.

为校正姿态与航向参考系统使用环境中软硬铁产生的罗差，提出了一种利用地磁场连续转动信息补偿三轴软硬铁的方法。

Key words: geomagnetic field model calculation; Taylor polynomial model; spherical cap harmonic model

本文所建立的中国区域地磁场球冠谐模型与泰勒多项式模型具有良好的一致性。

According to the three component absolute survey data of 118 geomagnetic stations observed during 1998~2000 and 39 geomagnetic observatories and IGRF 2000, the spherical cap harmonic models of the geomagnetic field for 2000 (the truncation order is 8), and the geomagnetic secular variation for 2000~2005 (the truncation oder is 6) are calculated.

根据1998～2000年完成的118个地磁测点和39个地磁台的三分量绝对测量资料以及IGRF2000，计算2000年中国地磁场冠谐模型（截断阶数为8），以及2000～2005年中国地磁长期变化冠谐模型（截断阶数为6）。

Geomagnetic field ; Spherical cap harmonic analysis ; Chinese geomagnetic reference field ; Spherical cap harmonic model.

地磁场；冠谐分析；中国地磁参考场；冠谐模型

Taking IGRF2000 as the main normal field in the region, the spherical cap harmonic modelsof the anomaly geomagnetic field in the region are established.

将国际参考地磁场（IGRF2000）作为地磁正常场，建立了京津冀地区地磁异常场的球冠谐模型。

It can be shown that the base function for the optimal analysis of PSV data is HSV eigen-function deduced from the proper or thogonal decomposition of the geomagnetic model data instead of the lower degree spherical harmonic function in common use.

统计学意义上最优的分析方法不是直接对PSV数据作低阶轴对称球谐分析，而是通过对地磁场模型数据的特征正交分析，得到表征HSV的特征函数，再用它们去分析PSV形式的数据。

The intensity and direction of the geomagnetism vector is a function of geographical position.

地磁场的强度和方向是地理位置的函数，可通过对地磁矢量的探测确定稳定飞行的弹体在空中的滚转姿态。

The intensity and direction of the geomagnetism vector is a function of geography position.

地磁场的强度和方向是地理位置的函数，可通过对地磁矢量的探测确定稳定飞行的飞行体在空中的滚转姿态。

During the storms, to the magnetic field vertical component of magnetic declination and there has been a marked ups and downs, but most features of the horizontal component of H.

在磁暴期间，地磁场的磁偏角和垂直分量都有明显起伏，但最具特征的是水平分量H。

Earth's magnetic field carves out a cavity in the sun's onrushing field.

地磁场像一位艺术家将太阳风暴雕刻出了一个大洞。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。