英语翻译近些年来GPS在大地测量和变形监测中应用日益广泛,GPS所测的高程为大地高程.但是我国应用的高程系统是基于似大地水准面的正常高程系统.由于大地高程面和似大地水准面不平行,产

英语翻译近些年来GPS在大地测量和变形监测中应用日益广泛,GPS所测的高程为大地高程.但是我国应用的高程系统是基于似大地水准面的正常高程系统.由于大地高程面和似大地水准面不平行,产
英语翻译
近些年来GPS在大地测量和变形监测中应用日益广泛,GPS所测的高程为大地高程.但是我国应用的高程系统是基于似大地水准面的正常高程系统.由于大地高程面和似大地水准面不平行,产生了高程异常.因此GPS高程只有经过高程异常的改正才能应用到工程测量和城建系统中.所以,如何求取高精度的高程异常成为GPS高程转化的关键问题.
本文介绍了GPS大地高、正常高和正高的概念和三者相互之间的关系及高程异常的概念,并阐述了GPS高程拟合的原理,在收集、查阅、分析了近几年来国内外针对GPS水准高的研究方法和应用技术,并在借鉴了这些研究成果的基础上,针对我们国家国土面积广,地形尤为复杂,似大地水准面起伏比较大的特点.采用多种拟合方法(多项式曲线拟合法、多项式曲面拟合法、多面函数拟合法、平面拟合法)对似大地水准面进行拟合.本文采用兖州矿区GPS实测数据和几何水准资料作为已知数据,分别用多项式曲线拟合法、多项式曲面拟合法和平面拟合法来进行拟合.然后,应用MATLAB语言对本文涉及的所有算法进行了编程并进行了实例分析、比较和研究.,并得出一些结论.

英语翻译近些年来GPS在大地测量和变形监测中应用日益广泛,GPS所测的高程为大地高程.但是我国应用的高程系统是基于似大地水准面的正常高程系统.由于大地高程面和似大地水准面不平行,产
In recent years, GPS geodesy and deformation monitoring applications increasingly wide range of GPS measured elevation of the earth elevation. However, the elevation of China's application system is based on a system like the normal elevation of the geoid. Not parallel to the earth elevation plane and quasi-geoid height anomaly. GPS elevation only after the abnormal elevation of the correction can be applied to engineering measurement and Urban systems. So, how to strike a high-precision height anomaly GPS Height into the key issues.
This article describes the GPS Height, normal high and is high concept and three mutual relationship between the height anomaly concept, and described the principle of GPS Height, in the collection, access, and analysis in recent years at home and abroad for GPS a high standard of research methods and technology, and draws on the results of these studies on the basis of our national land area is wide, the terrain is particularly complex, large features like the geoid undulation. Using a variety of fitting methods (polynomial curve fitting, polynomial surface fitting, multi-faceted function fitting, flat-fitting) on the quasi-geoid fitting. Yanzhou Coal Mining GPS measured data and geometric standards as the known data, to be legitimate, polynomial surface fitting and plane fitting to fitting polynomial curve. Then, the MATLAB language programming on all of the algorithms in this paper and case analysis, comparison and research. And draw some conclusions