In the case of cooperative air defense operation,if the attacking target is directed at the relatively important surface ships in the formation,the threat degree of the target will be large. Otherwise,it will be small. Therefore,the relative value of each ship in the formation should be fully considered in the threat assessment of the target.On how to solve the relative value between each vessel in the formation of this problem,this paper uses the game theory of Shapley value method,starting from the degree of interac-tion between the ships,the entire fleet as a cooperative game n people,thus the relative value between the surface ships can be ob-tained,the results of this method can be applied to the target threat assessment.
threat assessmentsynergy degreeShapley valuerelative value