A filtering method of vondrak based on the helmert type variance component estimation
Ding Jianxun · Engineering of Surveying and Mapping · 2008
From the principle of the Vondrak Filtering,based on the Helmert type variance component estimation(HVF),it describes the HVF in detailed.Numerical simulation experiments indicate that the method can select the smoothing factor reasonablly,and significantly mitigate the random error of measurement and separate signal and noise successfully.