基于变权灰色关联法的高超声速目标威胁评估

Hypersonic Target Threat Assessment Based on Method of Variable Weight Grey Incidence

针对传统灰色关联法的权重设置采用常权法没有充分考虑目标状态变化而引起威胁程度变化的情况,提出了基于变权灰色关联分析法的高超声速目标威胁评估模型。根据高超声速目标的威胁特点和威胁能力,并结合敌我双方的对抗能力,提出了高超声速目标的威胁评估指标;利用变权理论、构造均衡函数,动态调整各威胁指标的权值,使其随目标状态变化而变化;并结合灰色关联法,将变权向量与目标的灰色关联系数进行了变权综合,得到各目标的灰色贴近度,通过仿真算例验证了模型的有效性和合理性。

Aiming at the shortcoming of constant weight for traditional grey incidence method,an evaluation model based on variable weight grey incidence for hypersonic target threat assessment is proposed in this paper. The hypersonic target＇s characteristic and its ability are analyzed,and the threat evaluation indexes of hypersonic target are set up. The variable weight theory is put into threat assessment so as to get the variable weight vector,allowing the index weight vary with its state values,and combined with grey incidence method,then the grey approximation degree of different targets are calculated by integrating the variable weight with the grey incidence coefficient. Finally,a numerical example shows that the method is effective and reasonable.