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| 引用本文： | 金蕾,匡翠林.???????????????????????????????[J].大地测量与地球动力学,2012,32(6):119-122. |
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| 作者姓名： | 金蕾 匡翠林 |
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| 作者单位： | 1. 中南大学地球科学与信息物理学院,长沙410083;武汉大学卫星导航定位技术研究中心,武汉430079
2. 中南大学地球科学与信息物理学院,长沙,410083 |
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| 基金项目： | 中南大学2011年度自由探索项目(ZL11026);中南大学2011年大学生创新训练项目(CL11013);中南大学前沿研究计划(2009QZZD002) |
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| 摘 要： | ??IGRF????????????й???????????????????????й?????????????????????????????????????????????????????????????????????????????????????????????????Χ??????????2.5???????????????????????????????λ??????????IGRF????????????????????????????￡???????????????????????????????????????
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| 关 键 词： | ???????? ?????????? ???? ??????? GPS |
TO MITIGATE SECOND-ORDER IONOSPHERIC EFFECTS IN CHINA BASED ON MODELING MAGNETIC FIELD |
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| Jin Lei,and Kuang Cuilin.TO MITIGATE SECOND-ORDER IONOSPHERIC EFFECTS IN CHINA BASED ON MODELING MAGNETIC FIELD[J].Journal of Geodesy and Geodynamics,2012,32(6):119-122. |
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| Authors: | Jin Lei and Kuang Cuilin |
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| Institution: | 1) 1)School of Geo-Science and Info-Physics,Central South University,Changsha 4100832)GNSS Research Center of Wuhan University,Wuhan 430079 |
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| Abstract: | On the basis of a new model joining the IGRF model with the observation data of Chinese geomagnetic stations to build a magnetic field model throughout China is built up,which simplified the calculation of the second order ionosphere effects.In this paper the results calculated by the new model is compared with the real data and it is given that the residual error is in 2.5 millimeter in the fixed number of year. The second order ionospheric correction for positioning calculated with the new model is basically the same as with the IGRF model. The model proposed in this paper can not only guarantee the accuracy,but also make the calculation of the second order ionospheric effects simplified and improve the computing speed. |
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| Keywords: | ionospheric delay second-order ionospheric correction magnetic field second order model GPS |
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