| 斜圆柱投影及其对GPS空间坐标的转换模型 |
| |
| 引用本文： | 李全海. 斜圆柱投影及其对GPS空间坐标的转换模型[J]. 同济大学学报(自然科学版), 2002, 30(1): 106-110 |
| |
| 作者姓名： | 李全海 |
| |
| 作者单位： | 同济大学,测量与国土信息工程系,上海,200092 |
| |
| 摘 要： | 用GPS布设大面积工程平面控制网时，测得的空间直角坐标通常按等角横切椭圆柱投影方式来转化至独立平面坐标。当东西跨度较大时，往往长度变形难以控制。为此介绍了斜圆柱投影的计算方式，对于呈近似直伸型的线路工程来说，使斜圆柱投影相切中心线沿工程区域中心线，从而保证任何点位在投影中心的附近；可以有效地克服投影后的坐标长度与实地平距不一致的影响。
|
| 关 键 词： | 投影圆球 斜圆柱投影 长度变形 GPS 空间坐标 投影中心线 坐标转换 |
| 文章编号： | 0253-374(2002)01-0106-05 |
| 修稿时间： | 2001-05-10 |
Model of Oblique Cylindrical Projection for Transforming GPS Space Coordinates to Plane Coordinates |
| |
| LI Quan-hai. Model of Oblique Cylindrical Projection for Transforming GPS Space Coordinates to Plane Coordinates[J]. Journal of Tongji University(Natural Science), 2002, 30(1): 106-110 |
| |
| Authors: | LI Quan-hai |
| |
| Abstract: | In order to establish GPS horizontal control of highway engineer,the observed GPS rectangular coordinates are usually transformed to plane rectangular coordinates by means of inverse cylindrical projection.If longitudinal length of the survey area were very long,distance distortion would not be limited effectively.This paper describes a method of oblique cylindrical projection.In near straightway highway engineer area,making the center line of projection along center line of engineer area,any surveying point will be near the center line of projection,and distance distortion can be limited efficiently. |
| |
| Keywords: | earth ellipsoid projection sphere great circle cylindrical projection distance distortion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
