反临近空间助推滑翔高超声速目标制导研究

Study of Guidance for Near Space Boost-Gliding Hypersonic Aircraft Interception

临近空间助推滑翔高超声速飞行器飞行海拔高、速度快、机动强,传统防空导弹和空空导弹难以对其进行拦截。针对拦截具有大机动能力的临近空间高超声速飞行器的精确制导问题,分析了拦截弹弹体过载及其响应时间常数需求并阐明了直接力控制的必要性,确定了红外成像导引头探测体制并分析了截获距离、分辨率与帧频、瞬时视场角、离轴角等指标需求。最后,论述了直接力应用现状并提出了装置布局方案。

In near space,it is rather difficult,especially to traditional air defense missile and air-toair missile,to intercept the boost-gliding hypersonic aircraft which flies with high altitude,high speed and strong maneuverability. To precisely intercept boost-gliding hypersonic aircrafts which can maneuver with large overload capability in near space,guidance system model is built and requirements of missile body control and seeker for terminal guidance in high velocity interception is studied. Missile overload capacity and response time constant demands are derived,which indicates obviously that reaction jet is necessary in missile autopilot. It is demonstrated that infrared imaging seeker is superior to radar seeker. Important parameters are studied for infrared imaging seeker,such as detection range,resolution ratio,image frame frequency and off-boresight angle. Finally,a kind of orbit-attitude control equipment layout via reaction jet is presented.