地理信息系统工程坐标系统研究  

Research on GIS engineering coordinate system

作　　者：刘枭华[1] LIU Xiaohua(Geological Hazards Prevention Institute,Gansu Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]甘肃省科学院地质自然灾害防治研究所,甘肃兰州730000

出　　处：《测绘通报》2020年第11期158-162,共5页Bulletin of Surveying and Mapping

摘　　要：涉及如何建立平面坐标系统的论著较多,但多数都在较小的区域实施,相对情况比较简单,利用抵偿高程面或平移中央子午线,或者二者结合使用即可建立符合精度要求的平面坐标系统。但在较大(将近上万平方公里)的区域如何建立平面坐标系统的研究论著较少,本文对该问题进行了分析和探讨,归纳的方法和过程可对类似问题起到启发和参考的作用。So far,there are many papers on how to establish a planar coordinate system.However,most of them have studied the establishment of a planar coordinate system in a small area.It’s relatively simple.A planar coordinate system that meets the required precision can be established by using height compensation plane,translating central meridian or both.There are few researches on how to establish a planar coordinate system in a large area(nearly ten thousand square kilometers).This paper makes a detailed study on analysis and discussion this complicated problem,and obtains reasonable results.The method and process of induction can enlighten similar problems and can be taken as a reference.

关 键 词：长度变形 椭球面 高程归化 高斯平面 高斯投影 

分 类 号：P23[天文地球—摄影测量与遥感]