空战机动规避与箔条干扰协同应用策略

摘要

It is a vital technology for combat aircrafts to apply evasive maneuver and chaff centroid jamming collaboratively to reduce the threat from incoming air-to-air missiles.In order to escape from the radar track beam of missiles as soon as possible,we define the"Maximum normal acceleration of the track beam border"as the principle for evasive maneuver,and the stress analysis is carried out on the aircrafts before the corresponding maneuver strategy is acquired.We establish the aircraft-missile-chaff relative motion model,chaff motion and RCS dynamic change model,construct the chaff flare strategy which conforms with the principle of centroid jamming,and sum up the success of the collaborative application conditions.Simulation result shows that the maneuver is better than the traditional maneuvers and facilitates the pilot operation.When the centroid jamming is applied,the avoid effect is significantly increased with fewer chaff bombs.%作战飞机协同应用机动规避与箔条"质心干扰"以降低空空导弹的威胁是一项重要技术.为尽快逃离导弹雷达导引头跟踪波束,定义"跟踪波束边界最大法向加速度"的机动规避原则,并由受力分析得出相应的机动策略.建立了战机导弹箔条运动模型,构建箔条运动与雷达截面积动态变化模型,构建符合"质心干扰"原理的箔条弹投放策略,归纳了协同应用的成功条件.仿真结果表明,该机动的规避效果优于传统机动的规避效果,便于飞行员操作.在协同应用箔条"质心干扰"后,规避效果显著提升,且箔条弹消耗较少.