Cycle slip detection base on common reference clock GNSS dual antenna receiver
In GPS measurement, the existence of cycle slip directly affects the ultimately positioning accuracy. In order to obtain high positioning accuracy, cycle slip in carrier phase observations must be detected and repaired. So detecting and repairing of cycle slip has become one of the most important parts of GPS phase data processing. This paper presents our investigation of the cycle slip detection and repair methods suited for common reference clock GNSS dual antenna receiver. Through inter-station single difference module, the variation ratio of the difference in the carrier phase observation values between two observation stations can be regarded as a detection, this detection amount with good smoothness and strong sensibility to cycle slip, which can be used in the studies of the cycle slip repairing. After the experimental certification, for common reference clock GNSS dual antenna receiver, this method is correct and effective.