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针对目前的多种测量任务,阐述了进行实时坐标转换的必要性。回顾了2维坐标转换的基本原理,从2维坐标转换基本原理出发,以WGS-84坐标向北京54坐标转换为例,提出了以数据库建立为核心的坐标转换的详细设计线路,并给出数据库的基本框架。重点阐述了WGS-84坐标向北京54坐标转换的参数求解过程,为了综合考虑任意测点周围已知点对该点的影响,提出了一种距离加权求参数的方法。最后总结了此设计路线的优点和不足。 更多还原

【Abstract】 From a variety of measurement for the current task,this article describes the need for real-time coordinate transformation.And then it recalls the basic principles of the two dimensional coordinate transformation.From the basic principle of two-dimensional coordinate conversion,taking WGS-84 to Beijing54 for instance,this paper proposes the detailed design which was in core of building the database of the circuit,and presents the basic framework of the database.It focuses on the process of solvi...