CAJ | 학술논문

以高超声速飞行器为研究对象，针对俯冲段精确制导及机动突防问题，基于反馈线性化与滑模控制研究了机动突防滑模跟踪制导方法。首先设计纵向俯冲及侧向机动弹道，其次利用反馈线性化将非线性运动方程转化为线性方程，基于该线性方程利用滑模控制对已设计的弹道进行跟踪，最终将线性跟踪制导律转换到非线性系统中获得非线性滑模跟踪制导律，该制导律完全基于飞行器当前运动状态，所需的相对运动信息大大减少。CAV-H飞行器制导实例仿真表明，该方法能够实现俯冲段精确制导及机动飞行，且对初始及过程偏差具有较强的鲁棒性，能够为高超声速飞行器俯冲段制导提供有益参考。
이고초성속비행기위연구대상，침대부충단정학제도급궤동돌방문제，기우반궤선성화여활모공제연구료궤동돌방활모근종제도방법。수선설계종향부충급측향궤동탄도，기차이용반궤선성화장비선성운동방정전화위선성방정，기우해선성방정이용활모공제대이설계적탄도진행근종，최종장선성근종제도률전환도비선성계통중획득비선성활모근종제도률，해제도률완전기우비행기당전운동상태，소수적상대운동신식대대감소。CAV-H비행기제도실례방진표명，해방법능구실현부충단정학제도급궤동비행，차대초시급과정편차구유교강적로봉성，능구위고초성속비행기부충단제도제공유익삼고。
The slide mode tracking guidance strategy for hypersonic vehicle that can realize both precise guidance and maneuver flight was investigated.First,the diving trajectory which can satisfy terminal constraints in longitudinal direction and the maneuvering trajectory were designed.Second,with the aid of feedback linearization,the nonlinear motion equations were converted into the linear ones,which can be used to track the designed trajectories.Besides,in order to improve the guidance performance,slide mode tracking guidance law was proposed and the law was converted into nonlinear system to get nonlinear slide mode tracking guidance law.The guidance law is formed from the current motion states completely,therefore,the relative motion information can be decreased enormously.Finally,the results of a CAV-H vehicle guidance test show that the algorithm can realize maneuver flight and high precision guidance under the path constraints even if the outside disturbances exist. Therefore,it can offer references for precision guidance and maneuver penetration for hypersonic vehicle in dive phase.