基于统计同步算法的计算机外时钟同步系统设计与仿真

Design and Simulation of Computer External Clock Synchronization System Based on Statistical Synchronization Algorithms

重点研究了基于统计同步算法的计算机外时钟同步系统的设计问题。首先对网络延迟进行测量,并得出网络延迟的对数正态分布的统计模型。然后,提出了一种对PCS算法性能的软件仿真检验方法,并利用该方法对PCS算法的同步精度与概率性能进行仿真检验。结果表明,基于PCS算法的外时钟同步系统是可行、有效的,能较好地满足实际系统在同步精度与概率性能两方面的要求。

The problem of designing computer external clock synchronization system with PCS algorithm is studied. Firstly, the network delay is measured and modeled, and then a software simulation evaluation method is put forward to evaluate the performance of PCS algorithm. With this method, the synchronization precision and probabilistic performance of PCS algorithm is evaluated. The result shows that the design method given can satisfy practical requirements.