连续曲率张力样条方法在测高数据格网化中的应用  

Continuous Curvature Splines in Tension Applied for Gridding Satellite Altimetry Data

作　　者：倪清[1] 褚永海[1] 

机构地区：[1]武汉大学测绘学院,湖北武汉430079

出　　处：《测绘地理信息》2016年第2期26-28,53,共4页Journal of Geomatics

基　　金：国家973计划资助项目(2013CB733301);国家863计划资助项目(2013AA122502)~~

摘　　要：卫星记录的测高数据是离散的,格网化后才能得到规则的海平面。采用连续曲率张力样条方法对卫星测高数据格网化,并与Shepard算法进行比较。结果表明,连续曲率张力样条方法可以用于测高数据格网化,而且精度更好。Satellite altimetry data is discrete and regular mean sea level can be get after gridding.In this paper,the method of continuous curvature splines in tension is used for gridding satellite altimetry data and the results are compared with that of Shepard algorithm.It indicates that the proposed method is more applicable for gridding satellite altimetry data and has higher precision.

关 键 词：连续曲率张力样条方法 卫星测高 格网化 

分 类 号：P228.3[天文地球—大地测量学与测量工程]