【摘要】 采用公共点连接相邻测站观测结果是解决不同测站坐标统一问题的一种有效处理方法。该方法的核心是如何完成不同测站间坐标转换,方法较多,也比较成熟,但是算法都相对复杂,不易理解。对于小区域,不同测站间的铅垂线可以近似地看作是平行的,因此可以充分利用这一条件,再顾及到空间直角坐标系三坐标轴相互垂直的几何关系,可以简化坐标计算。因此,文章首先推导了简化后的公式,其次讨论了简化后坐标参数的计算步骤,最后结合实际工程案例,比较了简化方法与严密方法计算结果,证实了简化方法计算准确,具有操作简单、适应性强和易于理解等优点,可为工程技术人员提供有益参考。更多还原

【Abstract】 Connecting adjacent stations with public points is an effective method to solve the problem of coordinate unification of different stations. The essential problem of this method is how to accomplish the coordinate transformation between different stations. There are many useful methods, but these algorithms are relatively complex or difficult to the understand. In small regions,the plumb line between different stations can be approximately regarded as parallel,so that coordinates calculation process can be simplified considering the three axes perpendicular geometric relations. Therefore,this paper deduced the simplified formula and discussed the simplified coordinate parameters calculation steps. Finally,an engineering case is given to conform that the simplified method calculates accurately with some advantages.更多还原