| 基于Kriging下的移动曲面拟合法研究 |
| |
| 引用本文： | 王建民.基于Kriging下的移动曲面拟合法研究[J].测绘科学,2012(4):160-161,170. |
| |
| 作者姓名： | 王建民 |
| |
| 作者单位： | 太原理工大学测绘科学与技术系 |
| |
| 摘 要： | GPS水准在工程实践中仍然以数学拟合方法为主,本文首先简述了移动法曲面模型和Kriging(克里格)统计模型的原理,然后将Kriging的权引入到移动曲面下,使2者结合起来形成综合模型,综合模型借助Kriging方法定权,具有加权型模型的总体离散性特点,又具有曲面拟合模型的连续性优势。该模型克服了单一统计模型和函数模型的不足,理论上更为完善。最后通过某地区GPS水准网数据进行实验验证,结果证明其外符合精度比常规函数模型有所提高,不足之处是计算量大。
|
| 关 键 词： | 高程异常 高程拟合 Kriging |
Moving surface fitting models based on Kriging method |
| |
| WANG Jian-min.Moving surface fitting models based on Kriging method[J].Science of Surveying and Mapping,2012(4):160-161,170. |
| |
| Authors: | WANG Jian-min |
| |
| Institution: | WANG Jian-min(Department of Surveying Science & Technology,Taiyuan University of Technology,Taiyuan 030024,China) |
| |
| Abstract: | Mathematic function fitting is the main method in engineering practice of GPS leveling.First,the principles of moving surface model and Kriging statistics model were presented in the paper,then the weight of moving surface model was replaced by the weight of Kriging and made them synthesized.the model synthesized had the advantage of surface model and statistics model so avoiding the shortage of single model,performing more perfectly in theory.The GPS leveling experiment in certain area showed that the model synthesized could improve elevation precision in engineering practice. |
| |
| Keywords: | abnormal height elevation fitting Kriging |
| 本文献已被 CNKI 等数据库收录！ |
|
