机构地区: 广州市城市规划勘测设计研究院
出 处: 《地理空间信息》 2019年第7期121-123,I0003,共4页
摘 要: 结合生产实际需求,在充分考虑广州2000坐标系特点的基础上,研究了一种顾及椭球膨胀后椭球面不平行但不考虑大地高的,利用不同坐标系公共点四参数确定广州2000坐标与1980西安坐标高精度转换关系的实用方法;开发了坐标转换软件,并通过算例证明了该方法的可行性和可靠性。该方法的转换精度在±2cm以内。 In this paper, combining with the actual production needs and the particularities of Guangzhou 2000 coordinate system, we presented a highprecision transformation method of using common point four parameters of different coordinate system, which taking into account the influence of the ellipsoid unparallel after the ellipsoid expanding and without the geodetic height. At the same time, we developed a coordinate transformation software. Finally, we used the example to prove the feasibility and reliability of this method. The accuracy of this method is 2 cm.
关 键 词: 广州 坐标 西安坐标 高斯投影 椭球面不平行 相互转换 高精度
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