Detecting and Repairing Cycleslip for ClockSynchronized Dualantenna Global Positioning System Data based on Singledifferencing between Antennas

Abstract:

Based on the algorithm of singledifferencing for short baseline, this paper adopts the rate of phasedifferencing between two antennas as the indicator of cycleslip detection. We estimated the normal range of the rate and examined the effect of clock jump on it. Our theoretical analysis demonstrates that this indicator is able to detect cycleslip effectively. A numerical method for detecting and correcting cycleslip is provided. The experiments with real short baseline data from the clocksynchronized dualantenna receiver show that this method is valid in detecting and repairing the cycle slips, and it is immune to the disturbance of clock jumps.

Key words:clock synchronization; dualantenna receiver; singledifferencing algorithm; cycleslip detection; clock jump