| 基于线性LRS与基于SRS的空间数据转换方法 |
| |
| 作者单位： | 东南大学 江苏南京210096(蔡先华，齐征，戚洁平)，东南大学 江苏南京210096(王炜) |
| |
| 摘 要： | 本文主要研究基于线性LRS的空间数据到基于SRS的空间数据转换,并以二维空间为例进行讨论。提出采用Lagrange型插值、差商及Newton插值、差分及等距采样点插值及最小二乘逼近插值4种整体插值的数据转换方法,提出分段线性插值和分段多项式最小二乘拟合插值两种分段插值的数据转换方法,并分析所提出插值转换方法的优缺点。
|
| 关 键 词： | GOS-T 空间数据 数据转换 |
Spatial Data Conversion Based on LRS and SRS |
| |
| CAI Xian-hua,QI Zheng,QI Jie-ping,WANG Wei. Spatial Data Conversion Based on LRS and SRS[J]. Journal of Highway and Transportation Research and Development, 2005, 0(Z2) |
| |
| Authors: | CAI Xian-hua QI Zheng QI Jie-ping WANG Wei |
| |
| Abstract: | Spatial data conversion based on LRS and SRS is studied in this paper.We propose four interpolation methods with all points and two piecewise interpolation methods to convers spatial data,and analyses these methods relative merits.Four interpolation methods are Lagrange interpolation,divided difference and Newton interpolation,difference and equidistant sampling site interpolation and least squares approximation interpolation.Two piecewise interpolation methods are piecewise linear interpolation and piecewise polynomial least squares fitting. |
| |
| Keywords: | GIS-T Spatial data Data conversion |
| 本文献已被 CNKI 等数据库收录！ |
