Calibration of CHAMP Accelerometer Data with Dynamical Method

The calibration method for CHAMP accelerometer data based on the dynamical method is given out,and the corresponding formulae are derives out.This method can com-pute the geopotential coefficients and the scale and bias parameters for calibrating accelerom-eter data at the same time.The results show that this method is feasible and can obviously improve the accuracy of recovered geopotential;therefore the accelerometer calibration is necessary in recovering the geopotential model.