红外导弹抗干扰能力指标体系和评估研究

Anti-Jamming Performance Index System and Evaluation of Infrared Missile

为改进红外制导导弹抗干扰能力评估中因指标较单一而采用综合抗干扰成功概率表征的缺点,对抗干扰能力指标体系进行了研究。建立了包括抗干扰识别、抗能量压制、抗干扰跟踪和持续抗干扰四类能力的识别概率、最大最小能量压制、视线角速度误差因子、干扰结束时间占比因子和干扰占空比等6项指标系统。在已知导弹综合抗干扰成功概率条件下,建立目标评估函数;用遗传算法和层次分析法对指标进行细化分解,给出了具体实现步骤。对一个算例进行了评估,并将指标分解结果与实际仿真结果进行对比,分析表明:细化分解结果与实际导弹的抗干扰特性基本吻合,且提出的抗干扰能力指标体系与综合抗干扰成功概率有较强的关联性,可更细化地评估导弹各分系统的抗干扰能力并指导其抗干扰设计,有较好的实用性和可操作性,提升了红外导弹抗干扰设计的指导和评估水平。

To improve the disadvantage that the anti-jamming performance was characterized by the successful probability of the comprehensive anti-jamming in evaluation of anti-jamming performance,an evaluation system of anti-jamming performance was studied for infrared missile in this paper.The evaluation system was founded that included 4 kinds indexes of anti-jamming identification,power suppressing,anti-jamming tracing and anti-jamming continuous,which had 6 indexes of identification probability,maximum/minimum power suppressing,angular velocity factor of angle of sight,time duty ratio for anti-jamming ending and anti-jamming duty ratio.In case of the successful probability of the comprehensive anti-jamming of the missile knowing,the evaluation function was established.The genetic algorithm and analytic hierarchy process were used to refine the index.The details of analysis steps were given.One evaluation sample was presented,and the results from the decomposition evaluation were compared with the results from the simulation.It showed that the results of decomposition are consistent with the anti-jamming characteristics of the missile.The anti-jamming performance index system proposed has strong relationship with the successful probability of the comprehensive anti interference.The evaluation index system can be applied to evaluate the anti-jamming performances of the missile’s subsystems in more detail and guide the design of the missile’s subsystems.The evaluation index system proposed which is practicable.This study is valuable to improve the design guidance and evaluation for the anti-jamming of infrared missile.