针对传统空战多目标威胁评估难以满足准确性、实时性的缺陷与不足,提出基于模糊集与证据理论相结合的空战多目标威胁评估方法。该方法通过合理设置隶属度函数计算各威胁指标的威胁度基本概率赋值,使用改进的证据合成规则代替传统Dempster组合规则对其进行指标间融合及时域融合;采用加权求和的方法计算空中目标的威胁值并排序。最后给出仿真算例,验证了该方法的有效性。

Considering insufficient accuracy and real-time performance of traditional threat assessment method of multi-target in air combat, a new method based on fuzzy theory and DS evidence theory was proposed.BPA of threat index, fused in index and time domain through an improved fusion rule instead of traditional Dempster fusion rule, was calculated through setting membership grade function reasonably.Valuation and sequencing of each target threat was made by weighted summation.Finally, an example indicated that the method was effective.