Threat Assessment for Space Battlefield Targets Based on Dynamic Bayesian Network

Threat assessment of space battlefield targets has great meaning for command and decision-making in the future space operation.The paper discusses the characteristics of space battlefield and space threat targets.Aiming at the problem of threat assessment that is not well solved by Bayesian network(BN) in the dynamic space battlefield,a dynamic Bayesian network(DBN) theory is introduced.After that,a DBN-based threat assessment model for space operation is constructed;then,the paper performs a simulation using the proposed model.The simulation result shows that the DBN-based threat assessment model is adaptive to the dynamic change in the battlefield;it can be used in the process of developing the expert system in the future space operation.What is more,the DBN-based threat assessment model is more effective and reliable to reflect the real threat level than the Bayesian network model.