Clock Synchronization Algorithm Derivation and Realization for Network Control System

The key point of the existing Ethernet test and measurement is that the method needs to achieve precision clock synchronization between different terminals. In this paper, an improved method was proposed with consideration of the time drift and propagation delay, expressing master-slave synchronization as a linear relationship and inducting the line of least squares fitting algorithm that traded as linear matrix form. Also, the time synchronization formula is derived. The experiment results show that the synchronization accuracy reaches sub-microsecond grade.