This paper gives a new method evaluting the optimumfitting straight of sensors-the golden cut method(0.618 method).
介绍一种采用最优化方法—黄金分割法（0．618法）求解传感器最佳拟合直线的新方法。
2
Through using actual GPS leveling fitting data in a large-scale area, it introduces the application of optimum function model choice and the related analysis method.
文中通过一个大测区GPS水准实测数据，说明拟合模型优选准则的应用以及具体分析方法。
3
The results show that this method can enhance the steadiness in statistical decision-making and bring about the optimumfitting of probabilistic model of geotechnical parameters.