摘要
GPS水准拟合应用很广,其优化问题包括拟合模型的选取和拟合点数的确定以及拟合点的分布。文章应用沈云中教授提出的逐点剔除法分析了拟合点的选取过程和拟合点的最佳分布问题,最后以一实例并采用二次曲面作为拟合函数进行了具体优化分析,所得结论具有一定的参考价值。
Nowadays, GPS leveling fitting is widely used while the optimization of that includes two factors： one is the determination of the fitting model, and another is the determination of the number of fitting points and their best figuration. The method of elimination of GPS point by point created by professor Shen Yunzhong is used here to analyze the second factor of GPS leveling optimization. An real case is selected by using quadratic function as its fitting function for realizing the optimization. And the results should be instructive and informative.
出处
《工程勘察》
CSCD
北大核心
2006年第2期64-67,共4页
Geotechnical Investigation & Surveying
基金
地球空间环境与大地测量教育部重点实验室测绘基础研究基金(1469990324233-04-02)
关键词
GPS水准
逐点剔除法
优化
GPS leveling
elimination point one by one
optimization
