稳健估计的应用问题

Application Problem of Robust Estimation

在简述稳健估计原理的基础上 ,指出在应用中用残差V代替真误差建立准则函数 ,用最小二乘法估计残差V为权函数初值等问题需要进一步研究探讨 ,以提高稳健估计的有效性。

Robust estimation is usually applied into survey adjustment model. Its effect is to resist or to weaken the influence of gross error. On the basis of expounding briefly the principle of robust estimation,the paper points out the problems, such as to build criterion function with residual error V which replaces true error, residual error V of least squares estimation is regarded as preliminary value of weight function etc., which are needed to be further deliberated, so that the effect of robust estimation can be heightened.