地基GPS VTEC约束的电离层掩星反演方法

- 1.
  武汉大学测绘学院, 武汉 430079
- 2. 中国科学院空间天气学国家重点实验室, 北京 100190
- 3. 中国地震局地震研究所, 武汉 430071
- 4. 中国科学院武汉物理与数学研究所, 武汉 430071

详细信息

收稿日期: 2011-04-11

修回日期: 2012-02-06

上线日期: 2012-04-20

Ground-based GPS VTEC constrained inversion method for ionospheric occultation

- 1.
  School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China
- 2. State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China
- 3. Institute of Seismology, China Earthquake Administration, Wuhan 430071, China
- 4. Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

Received Date: 11 April 2011

Revised Date: 06 February 2012

Available Online: 20 April 2012

摘要: 本文在分析GPS电离层掩星Abel积分变换反演的基础上,介绍了一种顾及电离层水平梯度信息的反演新方法,即地基GPS VTEC约束的电离层掩星反演法,并将该方法应用于COSMIC低纬掩星观测资料的反演.初步的统计结果表明,与经典Abel变换反演相比,地基GPS VTEC约束反演的临界频率foF2更接近于电离层测高仪观测的结果.
- GPS电离层掩星 /
- Abel变换反演 /
- VTEC约束反演 /
- COSMIC
Abstract: This paper firstly analyzes the Abel transform inversion of GPS ionospheric occultation, and then introduces a new inversion method, which takes the horizontal gradient information of the ionosphere into account, called the ground-based GPS VTEC constrained inversion method for ionospheric occultation. Subsequently, this new method is applied in the inversion of COSMIC low-latitude occultation observations. The preliminary statistical results show that the retrieved critical frequency foF2 values using the ground-based GPS VTEC constrained inversion are closer to the ionosonde measurements than those using the classical Abel transform inversion.
- GPS ionospheric occultation /
- Abel transform inversion /
- VTEC constrained inversion /
- COSMIC