Time synchronization method for wireless load testing system

Abstract

A time synchronization method for a wireless load testing system includes two stages: a stage of constructing a wireless sensor network system and a stage of suppressing communication delay to achieve precise network-wide time synchronization. The method employs a relative skew estimator based on Bayesian estimation theory to suppress the effect of time delay in wireless communication, thereby enhancing the estimation accuracy of the relative skew estimator while reducing memory requirements. By applying the average consensus protocol, high-precision network-wide time synchronization is achieved, and the overall method enhances the robustness to time delay and has higher accuracy. The method solves the problems of reduced time synchronization accuracy and time synchronization failure of partial sub-nodes due to time delay of the traditional time synchronization algorithms in complex spatial layout.

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