可重复使用飞行器末端能量管理段轨迹和制导研究  

The Terminal Area Energy Management Trajectory Design and Guidance for a Reusable Launch Vehicle

作　　者：沃云峰[1] 李新国[1] 

机构地区：[1]西北工业大学航天学院,西安710072

出　　处：《航天控制》2005年第3期9-13,共5页Aerospace Control

基　　金：国家863高技术项目课题

摘　　要：采用Bernoulli螺旋线来描述航向调整圆锥在水平面中的投影,以此为基础建立了可重复使用飞行器在航向调整段的动力学和运动学模型,提出了一种根据末端能量管理段起始点水平面位置和飞行器的能量/航程比动态来生成航向调整圆锥的方法,以及航向调整段和捕获段的制导方法;数字仿真结果表明,本文提出的轨迹设计和制导方法可以使可重复使用飞行器以自动着陆界面要求的速度和高度对准跑道,实现飞行器安全降落。The Bernoulli’s spiral is used to describe the two-dimensional heading alignment cone (HAC) spiral. A dynamics/kinematics model of the heading alignment flight phase is developed. A method of creating the HAC onboard is presented, according the position and the energy/range rate of the start point of the terminal area energy management (TAEM) fight phase. Descriptions of guidance law used for the acquisition flight phase and the heading alignment flight phase are given. A number of simulations show that the method of trajectory design and the guidance law discussed in this paper can steer the vehicle to be positioned on the runway centerline with the velocity and altitude required by auto landing interface (ALI) for a successful landing.

关 键 词：可重复使用飞行器 末端能量管理 轨迹设计 制导 

分 类 号：V448.23[航空宇航科学与技术—飞行器设计]