GPS水准多项式曲面拟合模型研究

EXPERIMENT RESEARCH ON SEEKING MULTINOMIAL CURVED SURFACE FITTING MODEL OF GPS LEVELING

GPS高程曲面拟合的方法较多,我们利用移动多项式曲面拟合的基本原理,探讨了不同模型对已知点数量的多少以及已知点与拟合点之间的位置关系对精度的影响规律,通过在实际工程中的实验研究,得出一些非常有实际使用意义的结论.对GPS实际生产作业具有一定的指导意义,同时我们通过处理数据的统计与比较,给出某一地区的最优模型.

There are a lot of methods to fit curved surface of GPS Height. We discuss the impact law on precision of different models which is caused by the different number of clicks that have been known and the position relation between the click that have been known and the click that need fitted. We get some useful conclusions through the experiment research in the actual project. They have certain directive significance to GPS real production. We also provide the optimum model for one area through our statistics and comparison to the data at the same time.