平面控制网相对点位误差的合理评定与分析

Theoretical analysis and suitable evaluation of the relative position error of plane control network

对平面控制网的相对点位精度评定问题做了一些理论分析,探讨了在不同基准条件下协因数阵的转换关系,及依据转换后的协因数阵来评定相对点位精度的问题。在有关数学模型推导的基础上,利用MATLAB语言编制了控制网平差及相对点位精度的评定程序,并结合具体的工程进行了算例分析。

In this paper, how to evaluate the relative error of plane control network is theoretically analyzed, the transformation relationship of the covariance matrix in different datum and the problem to evaluate the relative error accuracy using the transformed covariance matrix are also discussed. With the help of the developed mathematical model, the plane control network adjustment with the function of computing relative error has been programmed with Matlab. The practical project is studied with actual data.