基于一元三次方程求解的地心坐标至大地坐标的严密变换  

A Rigorous Conversion from Geocentric to Geodetic Coordinates Based on the Solution to Univariate Cubic Equation

作　　者：李少元[1] 高北晨[2] 陈志辉[2] 

机构地区：[1]石家庄铁道学院土木工程分院,河北石家庄050043 [2]武汉大学测绘学院,湖北武汉430079

出　　处：《石家庄铁道学院学报》2006年第3期11-13,共3页Journal of Shijiazhuang Railway Institute

摘　　要：基于一元三次方程的求解,给出了地心坐标向大地坐标转换的严密计算公式,并用算例说明了其正确性。本文提出的方法完全可以替代现有的以数值迭代计算为基础的转换方法。Based on the solution to univariate cubic equation, this paper puts forward a rigorous coordinate conversion method from geocentric system to geodetic system. An example is given to validate this method. It can be used in practice in stead of the existing conversion methods which are on the basis of iteration procedure.

关 键 词：坐标变换 一元三次方程 严密公式 

分 类 号：P228[天文地球—大地测量学与测量工程]