Algorithm for GPS Network Construction Based on Spherical Delaunay Triangulated Irregular Network
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摘要: 根据球面Delaunay三角网的最大二面角性质,提出了一种GPS网络快速生长算法.采用国际大地坐标系的离散GPS站点,构造了全球球面Delaunay三角网,以验证该算法的可靠性.最后,对球面Delaunay三角网快速生长算法和球面Delaunay三角网直接搜索算法的效率进行了比较.结果表明,所提出的基于球面Delaunay三角网的GPS网络快速生长算法是有效的.
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关键词:
- 球面 /
- 狄洛尼 /
- 参考站 /
- 全球定位系统(GPS)
Abstract: A fast growth algorithm for GPS(global positioning system) network construction was developed based on the characteristics of maximized dihedral angle of SDTIN(spherical Delaunay triangulated irregular network).The coordinates,as test data,of GPS sites of ITRF(international terrain reference frame) were utilized to construct a global SDTIN in order to prove the reliability of the algorithm.In addition,the directly searching algorithm for SDTIN was compared with the fast growth algorithm.The comparison result shows that the fast growth algorithm is effective.-
Key words:
- sphere /
- Delaunay /
- reference station /
- GPS(global positioning system)
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