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Adapting Kriging to the WAAS MOPS Ionospheric Grid
Adapting Kriging WAAS MOPS Ionospheric Grid
2015/6/26
The most productive way to increase the availability of single frequency users of the Wide Area Augmentation System (WAAS) is by decreasing the Grid Ionospheric Vertical Error (GIVE). Currently the GI...
Ionospheric Estimation using Extended Kriging for a low latitude SBAS
Ionospheric Estimation Extended Kriging latitude SBAS
2015/6/26
The ionosphere causes the most difficult error to mitigate in Satellite Based Augmentation Systems (SBAS). The problem has been solved for the mid latitude regions using the thin shell approximation. ...
计算机试验引入近似建模的思想，使其广泛地用于复杂物理系统。针对计算机试验中的近似建模问题,基于Jeffreys 非信息超先验为Kriging 模型的相关参数赋予了多层先验约束，提出了一种有效的Bayesian元建模方法，并且利用期望最大化算法对相关参数进行数值求解。新方法在本质上属于惩罚似然方法，但是它不含有任何需要调整或者估计的参数。将之与国际上已有的几种方法进行了比较，实验结果显示新方法不仅能...