常用大地坐标系统及其转换

从应用角度阐述大地坐标系的构成,对椭球体、投影及其与大地坐标系之间关系进行了剖析。我国常用的高斯克吕格投影及三度带、六度带方面的知识作了介绍,对大地坐标的影响,特别是关键因子的影响进行了分析。结合实际应用中遇到的坐标问题进行了解释,使抽象难懂的投影简单化,易于理解。在大地坐标知识基础上介绍了坐标转换的方法,并总结了一些实际应用中遇到的大地坐标转换问题及解决方法。

The common geodetic coordinate system and its transformation

In this paper, composition of the geodetic coordinate system is explained; ellipsoid, projection and relations between the geodetic coordinate system and them are analyzed, from the point of application. The common Gauss-Kruger projection used in practice and knowledge of 3 and 6 degree bands are introduced. The influence of the geodetic coordinate, esp. the influence of the key factors is analyzed. The questions concerning the coordinate appeared in practical application are interpreted so that the abstract and difficult projection theory be simplified and under comprehension. On basis of the geodetic coordinate knowledge, the author then introduces the methods of coordinate transformation and finally makes a summary of the problems of geodetic coordinate transformation appeared possibly in practice and the methods of solution of them.