摘要
前向拦截制导方法是将拦截器导引到目标轨道的前方并沿着和目标相同方向飞行而拦截目标。这种方法要求拦截器的速度低于目标的速度,可以解决拦截器导引头的气动加热问题。在建立了目标和拦截器的运动学模型基础上,基于李亚普诺夫稳定性理论,在考虑目标机动加速度未知的情况下,根据滑模变结构控制对干扰和摄动的自适应性设计了前向拦截非线性变结构制导律。通过拦截器拦截目标弹道的数字仿真验证了制导律的正确性。
A new guidance law of HP（Head Pursuit） was proposed to eliminate the perturbation of interceptor detection induced by high speed.The guidance law positioned the interceptor missile ahead of the target on its flight trajectory,and the speed of interceptor was required to be lower than that of the target.A head pursuit nonlinear variable structure control guidance law was presented based on Lyapunov stability theory,considering the kinematics of interception and the uncertainty of target acceleration.Numerical simulation results verified the rightness of the guidance model and the effectiveness of the guidance law.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第6期1663-1666,共4页
Journal of System Simulation
关键词
拦截器
运动学
变结构控制
制导律
interceptor
kinematics
variable structure control
guidance law
