摘要
在分析建立地方独立坐标系必要性和影响长度变形主要因素及其控制措施的基础上,讨论了利用GPS技术建立地方独立坐标系的两种方法,并结合实例予以分析,结果表明:一点一方向法和椭球膨胀法均能获得满足精度要求的坐标成果,且一点一方向法对于小区域地方独立坐标系的建立更具优势。
Based on analysis for the necessity of establishing local independent coordinate system as well as main factors influencing length deformation and its control measures, two methods to establish local independent coordinate system by using GPS teehnology are discussed and verified with practical examples. It is concluded that the coordinate result obtained by using one point and one direction, or ellipsoid expansion method all can meet the accuracy requirement. Furthermore, method with one point and one direction is more advantageous for establishing local independent coordinate system in relatively small area.
出处
《矿冶工程》
CAS
CSCD
北大核心
2012年第5期23-25,29,共4页
Mining and Metallurgical Engineering
基金
贵州省优秀科技教育人才省长专项资金项目[黔省专合字(2009)96号]
贵州省科学技术基金项目[黔科合J字(2009)2264号]
贵州省科技计划资助项目[黔科合GY字〔2011〕3054]
关键词
GPS
长度变形
独立坐标系
椭球膨胀法
一点一方向法
GPS
length deformation
local independent coordinate system
ellipsoid expansion method
method with one point and one direction
