An Accurate and Efficient Detecting and Correcting Algorithm for Abnormal Clock Data

Because of various factors, there are many abnormal situations in the atomic clock measurement data from time-keeping system, such as data lost, error data, phase jump. The abnormal data can not reflect the real status of atomic clock, it is necessary to correct the abnormal data caused by short-term external disturbances. In this paper, based on analyzing for frequently used algorithm objectively and combining multi-methods, an accurate and efficient detecting and correcting algorithm is put forward. At last, the algorithm is validated using the clock measurement data, the result shows that the algorithm can accurately locate the abnormal data, analyze abnormal type, the correction effect is satisfactory.