基于MATLAB的水准网经典平差系统的开发和应用

一般情况下间接平差模型在平差前都给出参数的近似值,由于水准网观测值总能够由参数近似表示,在平差前可以不给出参数的近似值,直接进行平差,平差值为参数的估值。因此本文通过对间接平差模型的简化,基于MATLAB语言的丰富的数值计算功能和独特的GUI功能实现了任意网形的自由水准网、附合水准网经典平差系统的开发。用假设检验理论对平差结果从理论上进行可靠性分析,并用一个实例对系统的可靠性进行测试。试验结果表明,系统的平差结果是可靠的,系统可以对一等、二等、三等、四等以及等外任意网形的自由水准网、附合水准网进行经典平差,平差结果可靠。

Exploiture and application of classical adjustment system of elevation net based on MATLAB

Under normal circumstances,indirect adjustment model are given the approximate value of parameters before being adjusted.Because observation value of elevation net can be linearly expressed by approximate value of parameters,approximation of the parameters are not needed necessarily before adjustment.It can be adjusted directly,and the adjustment value is the estimated value of parameters.Therefore,this paper predigested indirect adjustment model,based on MATLAB's unique numerical calculation and GUI functions,it realized to explore the classical adjustment system of elevation net which is freewill shape.The assumption test theory was used to analyzed the reliability of the adjustment result.At last an example was used to test the reliability of the system.The results showed that it the adjustment result is reliable and could adjust for first-class,second class,third class,fourth class,as well as any out of fourth class elevation net which is any freewill shape.