What is the impact of platform motion?
Platform motion reduces the accuracy of Doppler locations. Platform motion, seen from the processing point of view, looks like frequency drift. The motion introduces an additional Doppler shift which is included in the frequency signal measured by the satellite. It tends to distort the ideal Doppler curve which would be obtained from a fixed platform with a stable oscillator. As a consequence, the residual error is larger and the accuracy is lower.
