Identification of Common-Mode Error Based on Tianjin GNSS Time Series Data
Han Yue-ping · 2010
In order to identify appropriately the common-mode error,and to modify the observation results,the mean-wavelet method,theoretical analysis and computing of GNSS time series data in Tianji area suggest have been proposed:1)common-mode error can be identified and separated to a certain extent;2)white noise and flicker noise of common-mode error can be excluded accurately in local region;3)common-mode error is the main component of GNSS observation error,and the proportion relation of integrated noise,common-mode noise and station itself noise is about 1∶0.83∶0.54;4)signal-to-noise ratio can be improved significantly through modification.