摘要
根据二次曲面函数拟合模型,多面函数拟合模型的优点探讨二次-多面函数拟合模型的精度,并且以某铁路的CP1点作为实验数据,结合Matlab编程建模,分别进行二次曲面拟合、多面函数拟合、二次—多面函数拟合并且进行精度比较。实验证明,组合模型的高程拟合精度要高于其中单一模型的精度。
In this paper,based on the advantages of quadratic surface function and the multifaceted function fitting model to explore the accuracy of quadratic-multifaceted function model.The CP1 of a railway as the experimental data;Combined with M atlab programming model;the fitting of quadratic surface fitting,multifaceted function fitting and quadratic-multifaceted function are proposed respectively and the accuracy comparison is carried out.The experimental results show that the accuracy of the composite model is higher than that of the single model.
作者
朱开银
秦岩宾
何友福
ZHU Kaiyin;QIN Yanbin;HE Youfu(College of Earth Science,Chengdu University of Technology,Chengdu 610059,China)
出处
《测绘与空间地理信息》
2019年第2期117-119,共3页
Geomatics & Spatial Information Technology
关键词
高程拟合
二次曲面函数拟合
多面函数拟合
二次-多面函数拟合
elevation fitting
quadratic surface function fitting
multifaceted function fitting
quadratic-multifaceted function fitting
