改进的高斯投影在城市测量中的应用  

Application of Improved Gauss Projection in Urban Surveying

作　　者：赵鑫[1] 尹伟言[2] 张小莉[1] 陈衡军[1] 

机构地区：[1]国家测绘地理信息局测绘标准化研究所,陕西西安710054 [2]国家测绘地理信息局第一大地测量队,陕西西安710054

出　　处：《地理空间信息》2018年第6期78-80,共3页Geospatial Information

基　　金：国家时空信息基础设施建设与服务关键技术标准研究资助项目(2016YFF0201300)

摘　　要：针对常用投影方案的长度变形值不能满足《城市测量规范》精度要求的问题,对投影方案进行改进,提出两类较优的改进方案:一是在满足长度变形精度指标的前提下,以计算简单为目的 ;二是以减小投影长度变形绝对值为目的,并得到相应的参数值。Due to the length deformation value of the commonly used projection scheme can't satisfy the requirement of the Urban Surveying Standard. We analyzed and discussed how to choose length deformation parameters of Gauss-Kruger Projection Race in this paper. We improved the projection method, and proposed two types of the superior schemes to satisfy the precision target. Firstly, on the premise of meet the length deformation precision index, the purpose is computing simply. Secondly, the purpose is reducing the absolute value of the projection length deformation, and obtains the corresponding parameter values.

关 键 词：高斯-克吕格投影族 投影长度变形 城市测量 

分 类 号：P283[天文地球—地图制图学与地理信息工程]