关键词: ⁺离群值, ⁺预测不确定度, 原子时, ⁺随机追踪策略, 原子钟

Abstract: Time always stable elapses forward,which is different from other physical quantities.It determines that only the past time can be accurately measured and evaluated.In order to ensure the accuracy of output signal of time scale at next time,the prediction and control of atomic clock signals is indispensable.This paper analyzed theoretically the running principle,uncertainty evaluation,key parameters’ optimization and other problems of random pursuit strategy to clarify its operational mechanism for predicting clock difference.In addition,we attempted to discuss on the applicability and proposed two new ideas of further study about random pursuit strategy.

Key words: ⁺Outlier, ⁺Prediction uncertainty, Atomic time, ⁺Random pursuit strategy, Atomic clock