摘要
采用常规的投影算法表示地球椭球体上的椭圆时,所得椭圆与实际椭圆存在一定误差。针对上述问题,阐述了一种通过解算大地主题表示地球椭球体上椭圆的算法。通过几个实例,对两种算法进行了比较和分析,结果表明,通过解算大地主题表示地球椭球体上椭圆的算法具有非常高的精度。
Error exists between actual ellipse and ellipse which is represented by projection algorithm on the earth ellipsoid. In order to solve this problem, an algorithm is elaborated to represent ellipse on ellipsoid by solving the geodetic problem, These two algorithms are compared and analyzed through several examples. The results show that the algorithm by solving the geodetic problem has higher accuracy.
出处
《测绘科学》
CSCD
北大核心
2009年第5期156-157,共2页
Science of Surveying and Mapping
关键词
大地主题
大地距离
方位角
贝塞尔算法
geodetic problem
geodetic distance
azimuth
Bessel algorithm
