基于2000国家大地坐标框架的矿区坐标系统转换模型与方法

随着2000国家大地坐标系的推广使用,我国各矿山均存在大量的测绘成果坐标系统转换的任务。为了实现矿山坐标系统成果的顺利转换,在矿区首先建立基于2000国家大地坐标系统矿区控制网。并根据七参数模型和四参数模型的适用情况,从坐标系统框架建立、水准面精化、坐标转换模型、精度评定及实例分析等方面系统讨论了矿区坐标系统转换的理论与技术方法。

Model and Method of Mining Coordinate System Conversion Based on 2000 China Geodetic Coordinate Frame

With the popularization and implementation of 2000 China geodetic coordinate, there are a lot of coordinate system conversion tasks for surveying and mapping results in our country. In order to realize the smooth conversion of mine area coordinate system, the control network based on 2000 China geodetic coordinate system is established firstly. According to the applicability of the seven parameters model and four parametersmodel, the theories and techniques of coordinate system conversion for the mining area are discussed, including coordinate system framework establishment, geoid refinement, coordinate conversion model, precision evaluation and case analysis etc.