Hypersonic Target Threat Evaluation Model Based on Improved Gray Relation Analysis
Yong Sheng Zhao · Tance yu kongzhi xuebao · 2014
An evaluation model based on improved GRA(Gray Relation Analysis)was proposed to solve the problem of less considering certainty and uncertainty information of sample data synthetically and sub-integrating objective and subjective endowing weight by traditional GRA in calculating the weights.Taking the commonness of hypersonic target,aerodynamics target,missile target and hypersonic target's self characteristic into consideration,the model confirmed the threat evaluation indexes of hypersonic target.The improved GRA synthetically took subjective and objective factors into account,and gained combination weight by combining subjective weight of threat evaluation index,by putting multiple decision-making experts' weights into AHP(Analytic Hierarchy Process),and the objective weight of threat evaluation index was obtained by entropy,which gave prominence to indexes' mistiness and uncertainty,and made the result more credible.The results of simulation indicated that the model's sequences were consistent with expert precedence ordering basically,thus it might be useful in resisting hypersonic target battles.