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A generating procedure for local atomic clock ensemble time scale

This paper presents a generating procedure of local atomic clock ensemble time scale (LACETS) based on Kalman filter and algorithms used for UTC generation. Frequency prediction error of the clock originated from Kalman method is used to evaluate the predictability. According to this predictability, the weight attributed to each clock in the ensemble is defined in the new weighting algorithm. That is beneficial to reasonably arrange the weights in clock ensemble. The generating procedure of time scale is principally based on clock data filtering and weighting algorithm. LACETS is performed by combining the readings of 7 Cs clocks. It could be useful to various types of clock ensemble for time keeping, especially Cs clock ensemble.