Research Of Network Clock Synchronization Mathematical Models

As computer technology and distributed theory have advanced at a fast and steady rate during recent years, the clock synchronization between network nodes in an asynchronous network environment becomes more and more important. We analysis network time protocol firstly, and develop client software based on Java language. The paper estimates network congestion and network flux through measuring and calculating for network delay. We provide the method of choosing time server, evaluate running state of time servers impersonally and show the relationship between network delay and precision NTP. We make use of continuous timestamps, clock precision difference and signal denoised method in the paper in order to improve clock synchronization precision under asynchronous communication environments in the paper. The paper compared two wavelets through simulation experiments, and choosing the better wavelet being used to denoised.We research internal clock and external clock synchronization models, and improve self-adaptive synchronization model. It is better for enhancing clock synchronization precision. And research one-way delay communication models, gives the analysis of real cases. In fact accurate global clock synchronization is very important for applications of grid computing, distributed computing and applications.