区域似大地水准面精化算法及成果三维仿真研究  

The Research of Local Quasi Geoid Determination and Three Dimensional Simulation Results

作　　者：王璐[1] 

机构地区：[1]长安大学地质工程与测绘学院,陕西西安710064

出　　处：《测绘与空间地理信息》2014年第1期178-181,共4页Geomatics & Spatial Information Technology

摘　　要：利用GPS水准代替繁重的几何水准测量工作,必须确定高精度、高分辨率的似大地水准面。本文分别介绍了函数模型算法、随机模型算法和综合模型算法,并基于试验区域的GPS水准数据,通过各种算法的分类计算比较,验证了这几种模型算法的有效性和可靠性,结果证明最小二乘配置算法精度较高,并对实验结果进行三维仿真,可视化的分析似大地水准面的变化。Using GPS leveling to replace heavy geometry leveling work must determine high - precision and high - resolution local qua- si geoid. This paper introduces the function model, stochastic model and integrated model algorithm, and based on the GPS leveling data of experimental area, through the calculation of various algorithms, the paper verifies the validity and reliability of the algorithms. Results show that the accuracy of the least squares configuration algorithm is higher. Through three dimensional simulated experiment results, we can visually analyze the change of local quasi geoid.

关 键 词：似大地水准面精化 数学模型算法 精度 三维仿真 

分 类 号：P228.4[天文地球—大地测量学与测量工程]