大椭圆线椭球高斯投影在高速铁路工程中的应用  

Application of Large Elliptic Ellipsoid Gauss Projection in High-speed Railway

作　　者：冯黎刚 姚德新[1] 金立新 

机构地区：[1]兰州交通大学测地学院,甘肃兰州730070 [2]甘肃铁道综合工程勘察院,甘肃兰州730000

出　　处：《测绘通报》2018年第1期88-91,124,共5页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(41574009)

摘　　要：为了减少东西走向长线工程中的控制点数据在进行高斯投影转换时需要频繁换带的问题,提出了一种方法,即以工程线路中心线或其附近的大椭圆线为中央子午线,建立大椭圆线椭球,根据非线性规划最优理论求出大椭圆线椭球参数,并对其进行椭球变换,然后以此新椭球为基础进行高斯投影。In order to reduce the problem of projection band transformation of the control point data in the east-west long projective engineering when Gaussian transformation is performed, the paper proposes to establish a large elliptical ellipsoid with the large elliptical line near the center line of the engineering line or its neighborhood. The large elliptic ellipsoid parameters are obtained according to the nonlinear programming optimal theory and ellipsoid transformation is finished, and then the Gauss projection is based on the new ellipsoid.

关 键 词：大椭圆线 椭球变换 非线性最优化 投影变形 

分 类 号：P258[天文地球—测绘科学与技术]