摘要
充分利用Surfer软件强大的插值功能和绘制图件能力,分析了其在GPS高程拟合中的应用,一是基于Surfer所显示的高程异常三维表面显示图的起伏情况,分区域选择最能表达地形的数学模型,使得高程拟合达到最佳效果;二是对离散点的高程异常进行内插计算,获得一定间隔的格网高程异常模型,根据该模型内插待求GPS点的高程异常,从而将GPS大地高转换为正常高。通过实验分析了此两种应用的可行性。
grap tion ring The grid then Abstract. Taking full advantage of surfer software with great interpolation function and hic capability, this paper analyses application of height fitting. The first is the investiga- of ups and downs of 3D surface map of height anomaly based on surfer software, selec- the best mathematical model regionally, and making the best effect of height fitting. second is interpolation calculation of height anomaly of discrete points, in order to get of height fitting model with space, and interpolate height anomaly of unknown points, completes height transform. It makes a simple analysis by experiment.
出处
《全球定位系统》
2013年第5期56-59,共4页
Gnss World of China
