基于广义延拓逼近法的GPS高程拟合  

GPS Elevation Fitting Based on Generalized Extended Approximation Method

作　　者：林国钻 邱斌[1] 

机构地区：[1]中南大学地球科学与信息物理学院,湖南长沙410083

出　　处：《海洋测绘》2015年第5期35-37,共3页Hydrographic Surveying and Charting

摘　　要：将广义延拓逼近法用于GPS高程拟合中,解析了该方法的基本原理与算法。通过实例验证分析此方法用于GPS高程拟合的适用性与精度,重点将该方法与其他几种常见的GPS高程拟合方法在同等条件下的计算结果进行对比分析。实例证实,该算法用于GPS高程拟合相对于其他方法,精度较高,计算简单,且所得函数曲面光滑性更好。The method of generalized extended approximation is used in GPS elevation fitting.This article analyses its principle and mathematical model.The applicability and accuracy of this method are analyzed by the example. In addition, this paper compares the computing results of generalized extended approximation method and other common methods under the same condition.It is confirmed by the example that this algorithm has the advantages of higher accuracy, easier calculation and better smoothness.

关 键 词：广义延拓逼近 GPS高程拟合 高程异常 曲面逼近 

分 类 号：P228.4[天文地球—大地测量学与测量工程]