针对现有空空主动雷达导引头干扰效能评估指标体系的主观性较强,存在冗余现象,缺乏合理的建立依据和约简方法,文中分析了评估指标体系的构建原则,通过对导引头固有抗干扰能力和工作过程的分析,建立了评估指标体系。为解决多指标及各指标重要程度不一的问题,应用粗糙集属性约简算法对该指标集进行约简,删除了冗余属性,得到了核心属 性。并且以五组主动雷达导引头干扰效能评估指标数据为例进行算法模型验证,并对约简后的指标体系进行了有效性检验。实验结果表明:该方法能有效简化评估指标,得到工作体制抗干扰因子和自卫距离这两个核心指标,为主动雷达导引头干扰效能的评估提供理论支撑。

Strong subjectivity, redundancy, without valid instruction grounds and reduction methods are the main characters of present air-to-air active radar seeker jamming effectiveness evaluation. In this paper, principles of constructing index system are analyzed; index system is established after analyzing the inherent anti-jamming capability and working process. According to the problems of multi-indexes and the difference of each index, attribute reduction algorithm of rough set is applied to reduce the index system, the redundant attributes are deleted and the core attributes are gotten. Finally, five typical samples set about evaluation index data are used to check the validity and rationality of constructed model, and the effectiveness of the reduced index system is checked. The experiment results show that the method which could provide theory support for radar seeker jamming effectiveness evaluation can effectively reduce the evaluation index, and the two core indicators which are anti-jamming factor of work system and self-screening range are gotten.

TN974

航空科学基金资助项目