Abstract: Aiming at the characteristics of target multi-attribute and dynamic changes of attribute values in air defense operations,this paper proposed a method of dynamic threat assessment based on intuitionistic fuzzy multiple attribute decision making.Firstly,aiming at the unknown weight of target attribute,based on the basis of comprehensive investigation in subjective preference of decision-makers(DMs) and objective information,this paper established a linear weightedattribute weight optimization model,and determined the weight of target attributes.Secondly,in view of the one-sidedness of the traditional threat assessment algorithms which only study the current time attribute information,the Poisson distribution method was used to empower the time series,the fusion of multi-time target information was realized andthe dynamic change process of the combat situation was investigated .Thirdly,the idea of TOPSIS was used to solve the normalized threat value of targets,and then the dynamic threat ranking results of the incoming targets were obtained.The simulation example shows the flexibility and rationality of the proposed algorithm,which provides more effective auxiliary decision-making for air defense combat DMs.

Key words: Intuitionistic fuzzy, Mutiple attribute decision making, Threat assessment, Time series weight