中文摘要：

针对现有空袭目标威胁评估方法存在的不足,提出了一种新的基于粗糙集和区间数的空袭目标威胁评估方法。首先建立了空袭目标威胁评估指标体系,给出了指标值为区间数且指标权重完全未知的指标权重计算步骤,克服了以往指标权重确定的主观性。建立了应用粗糙集和区间数评估空袭目标威胁的数学模型。提出了威胁评估指标的离散化区间,并应用粗糙集理论对威胁评估指标体系进行了约简。最后,通过空袭目标威胁评估实例说明了该方法的合理性和有效性。

英文摘要：

Considering the existing methods of target threat evaluation for air attack was not fully ideal,a new evaluation method based on rough set and intervals was proposed.Criterion systems of target threat evaluation for air attack was founded,the calculation steps for solving index weight was given when index value was intervals and index weight was unknown,which conquered the subjectivity of former methods.Then the mathematical model of evaluating target threat by rough set and intervals was established.Dispersed ranges of threat evaluation indexes were presented,and the criterion systems of target threat evaluation was reduced by rough set theory.Finally,a numerical example of target threat evaluation for air attack is given to show the rationality and effectiveness of the method.