IGG抗差估计在高程拟合中的应用研究

Application of IGG Robust Estimation in Height Fitting Research

针对在实际生产中测量数据会不可避免受到粗差的影响,笔者选取IGGI、IGGⅢ方案,用MATLAB进行虚拟仿真,并在高程拟合中进行抗差估计实验。实验结果表明:以IGG权函数为代表的稳健估计对粗差有较好的抗性,且IGGⅢ抗差效果最好。

In view of the fact that the measurement data will inevitably be affected by gross errors in actual production,the author selects IGGI and IGGⅢschemes,uses MATLAB to perform virtual simulations,and conducts robust estimation experiments in elevation fitting.The results show that the IGG weight function is The representative robust estimate has good resistance to gross errors,and IGGⅢhas the best anti-error effect.