HVF METHOD AND ITS APPLICATION IN THE STUDY ON GPS MULTIPATH EFFECTS
HVF方法在GPS多路径效应研究中的应用

The Vondrak filtering method based on the Helmert type variance component estimation(HVF) is presented and applied to the study on GPS multipath effects. The experiments indicate that the method can select reasonably the smoothing Vondrak factor, reduce significantly the random error of measurement and separate successfully signal and noise. The day-to-day repeating property of GPS multipath signal can be applied to remove efficiently the multipath disturbances in the consecutive GPS measurement, and therefore improve the quality of GPS coordinate results.