基于MATLAB的抵偿坐标系工程实践  

Based on the MATLAB Language in the Application of Counter Coordinate System

作　　者：王学[1] 刘全明[1] WANG Xue LIU Quanming(Water Conservancy and Civil Engineering Institute, Inner Mongolia Agricultural University, Huhehot, Inner Mongolia 010018, China)

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018

出　　处：《公路工程》2017年第1期119-122,共4页Highway Engineering

基　　金：国家自然科学基金项目(51569018);国家自然科学基金项目(51249007);内蒙古自然科学基金项目(2013MS0609);内蒙古农业大学博士科研启动基金项目(BJ09-25)联合资助

摘　　要：在高速铁路、高速公路等工程项目中为限制长度变形,对坐标系的选择提出了更高的要求,有时须建立抵偿坐标系。通过对椭球膨胀法建立的抵偿坐标系与普通坐标系进行实验数据验证,发现抵偿坐标系得到的变形值更小,精确度更高,但面临计算量大、易出错等问题的困扰。基于MATLAB平台的抵偿坐标的实现,不仅能够对数据进行批量化处理,还具有速度快、精度高的优势。In the high speed railway and highway engineering project to limit the length deforma- tion, the choice of coordinate system put forward higher request, sometimes shall establish counter coordi- nate system. Established based on the ellipsoid expanding method of counter coordinate system with nor- mal experiment data validation, find counter coordinate system to get deformation value is smaller, the pre- cision is higher. But face problems such as large amount of calculation, error-prone ,and the realization of the counter eoordinates based on the MATLAB platform,not only can carry on the mass to the data pro- cessing, but also has the advantage of high speed and precision.

关 键 词：投影变形 椭球膨胀法 抵偿坐标 MATLAB 误差分析 

分 类 号：P258[天文地球—测绘科学与技术]