摘要
在公路控制测量中,GPS坐标转换至国家或城市坐标经常会遇到系数矩阵病态和公共点粗差导致坐标转换失败的问题。文中将LC曲线法用于解决系数矩阵病态问题,介绍了该算法的基本思想、转换思路,同时将拟准检定法用于抵抗公共点坐标存在的粗差问题。算例研究表明,LC曲线法与拟准检定法能够分别克服公路控制测量坐标转换中病态矩阵及坐标粗差的问题,从而获得较高精度的转换坐标。
In highway control survey, G P S coordinate transforming into the state coordinate often encountered theproblem morbidity matrix and public point of gross error resulting in thecoordinate conversion failure. In the p a p e r,theLCcurve me t h o d w a s used to solve themo r b i d problem of thecoefficient matrix, and the convrsibasic idea of the algorithm were introduced,at the s a m e t i m e,Q U A D was used to resist the gross error of tlie c o m -mon point cooniinaes. R e s u k s showed that the L C curve met h o d and Q U A D could overcome the problem of the m o r-bidity matrix and the cooniinate gross error in the cooniinate transformation in highwaythe higher precision conversion coordinates.
出处
《矿山测量》
2017年第5期81-83,86,共4页
Mine Surveying
