摘要
轨迹跟踪在编队飞行、空中加油以及侦察跟踪任务方面具有重要作用。为了提高变体飞机的轨迹跟踪效果,本文提出了一种新的轨迹跟踪方法。首先,根据非刚体运动模型特点对一种变后掠翼飞机进行建模;其次,使用增量反步法设计相应的控制律,包括姿态控制律、高度控制律、速度控制律和侧滑角控制律;最后,在轨迹回路的跟踪制导策略上,使用非线性L1制导法,通过计算目标飞机的动态轨迹曲率进行轨迹跟踪控制的设计,同时使用变体结构进行补偿轨迹跟踪控制。仿真结果表明,该方案能够很好地应用于变体飞机,并能够准确地跟踪上目标飞机。本文的研究可为变体飞机的轨迹跟踪应用提供理论和仿真验证技术支撑。
Trajectory tracking plays a crucial role in formation flying,aerial refueling,and air combat for tracking and tail-locking.To address the trajectory tracking problem for variant aircraft,this paper proposes a novel trajectory tracking approach.Firstly,a variant swept-wing aircraft is modeled based on the characteristics of non-rigid body motion.Then,an incremental backstepping method is employed to design corresponding control laws for the aircraft,including attitude control,altitude control,speed control,and sideslip angle control.Finally,for the trajectory tracking guidance strategy,a nonlinear L1 guidance law is utilized,which computes the target aircraft’s dynamic trajectory curvature to design the trajectory tracking control while incorporating a variant structure for compensation control.Simulation results demonstrate that this approach is suitable for variant aircraft and can accurately track the target aircraft,providing theoretical and simulation-based support for future applications of trajectory tracking in variant aircraft.
作者
明瑞晨
刘小雄
王磊
Ming Ruichen;Liu Xiaoxiong;Wang Lei(Northwestern Polytechnical University,Xi’an 710072,China)
出处
《航空科学技术》
2023年第10期35-41,共7页
Aeronautical Science & Technology
基金
航空科学基金(201905053003)。
关键词
变体飞机
增量反步法
L1制导
动态曲率
轨迹跟踪
morphing aircraft
incremental backstepping method
L1 guidance
dynamic curvature
trajectory tracking
