Sliding Window Calculating Method of Time Synchronization Based on Information Fusion

摘要

Time synchronization is very critical requirement at all four layers of proposed wireless sensor network architecture namely, Application layer, Network layer, Node layer, Sensors layer. At application Level, time synchronization is required for consistent distributed sensing and control. In order to realize united time, the united time service system or the time server must be established. This paper proposes Sliding Window Calculating Method for time synchronization based on information fusion. Fault-tolerance strategy of time synchronization is studied and the error analyses are given. It is necessary to add the functions of network clock synchronization to the information fusion to ensure accurate, efficient, and automatic operation of information fusion system.