基于广义标准轨迹的平衡滑翔状态反馈制导方法

对多约束条件下远程助推滑翔飞行器再人滑翔飞行问题,提出了一种基于广义标准轨迹的平衡滑翔状态反馈制导方法.建立了远程助推滑翔飞行器的动力学模型,确定了飞行轨迹约束条件,详细阐述了基于广义标准轨迹的平衡滑翔状态反馈制导方法的制导原理,设计了远程助推滑翔飞行器的侧向和纵向制导律,并采用LQR( linear quadratic regular)方法设计了纵向制导参数,仿真验证了该方法的可行性.与以往再人滑翔制导方法不同,该制导方法主要利用飞行攻角的变化来调节飞行轨迹,飞行过程中飞行器的速度倾侧角较小.仿真结果表明,该制导方法能满足远程助推滑翔飞行器的再入滑翔制导问题,并且具有较好的鲁棒性和自适应性.

Research on equilibrium-glide state-feedback guidance method based on generalized reference-trajectory

A new equilibrium-glide state-feedback guidance method based on generalized reference-trajectory was presented for the glide of long-range boost-glide vehicles,considering all path constraints.The 3DOF dynamic equations of boost-glide vehicles were established,and the path constraints were specified.Next,the principle of the guidance method was explained in detail.At the same time,the basis guidance law was designed,and its longitudinal parameter was set by LQR(linear quadratic reentry guidance methods),the new guidance method adjusted the trajectory by the change of angle of attract,and the bank angle profile was small through the glide phase.The simulations show that the new guidance method can satisfy the glide guidance problem of long-range boost-glide vehicles,and have the characteristics of being robust and adaptive.