一种基于组合重构算法的对流层层析技术

发布时间：2018-05-07 15:41

本文选题：重构算法 + COSMIC　；参考：《大地测量与地球动力学》2017年09期

【摘要】：在经典的对流层层析模型基础上提出一种新的层析模型。首先采用非迭代重构算法估算出层析网格顶点处的水汽密度值,然后根据网格顶点处的湿度信息内插出网格中心点处的水汽密度值,并将其作为初始值,通过迭代重构算法对其进行再次修正。组合重构算法能够为迭代重构算法提供高质量、高可靠性的初始值。试算结果表明,组合重构算法相比单一重构算法具有更高的精度。
[Abstract]:A new chromatographic model is proposed based on the classical convective stratigraphic model. Firstly, the water vapor density at the vertex of the chromatographic mesh is estimated by non-iterative reconstruction algorithm, and then the moisture density at the center of the grid is interpolated according to the humidity information at the vertex of the grid, which is regarded as the initial value. It is modified again by iterative reconstruction algorithm. Combined reconstruction algorithm can provide high quality and high reliability initial value for iterative reconstruction algorithm. The experimental results show that the combined reconstruction algorithm has higher accuracy than the single reconstruction algorithm.
【作者单位】：武汉大学GNSS研究中心;武汉大学地球空间环境与大地测量教育部重点实验室;
【基金】：国家自然科学基金(41074008) 国家973计划(2012CB957701) 地球空间环境与大地测量教育部重点实验室测绘基础研究基金(16-02-09)~~
【分类号】：P228.4;P412

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