Abstract:In order to calculate motion acceleration of the airborne gravity measurement, double difference GPS (DDGPS) carrier phase pseudo-range observations are analyzed considering ionospheric and tropospheric delay effects. Then, through the kinematic modeling of the carrier, a new Kalman filtering algorithm based on PVA model is proposed. The algorithm can directly calculate kinematic acceleration from the phase observations, relative to traditional difference method. Validated by the simulation analysis, when adopting the adaptive Kalman filter, the standard deviation of kinematic acceleration without low-pass filtering is 7.26×10-3 m/s2.
WANG Le,WANG Yuegang,TENG Honglei et al. Calculation of Motion Acceleration with the Consideration of Atmospheric Delay Using PVA Model Kalman Filter[J]. jgg, 2016, 36(7): 650-653.