Abstract: Instantaneity of information transmission is a prominent feature of tactical data link.Data chain communication is requited possessing good delay feature as well as reliable delay jitter performance.The generation of random message flow possesses characteristics of randomness and abruptness,and should dynamically allocate timeslot in accor-dance with demands,which requires a high real-time capability for algorithm.Therefore,a de-jitter dynamic slot allocation algorithm based on cluster analysis was proposed and the clustering method was adopted to divide idle timeslot into slot cluster,which can thus simplify the analysis process of slot allocation.The simulation result shows that timeslot allocated by the algorithm can meet the requirement of delay jitter and the algorithm is of low complexity which can settle timeslot assignment of periodic random message flow efficiently.

Key words: Tactical data link,Periodic random message flow,Delay jitter,Cluster analysis