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北京理工大学 机械与车辆学院, 北京 100081
Received:31 July 2024,
Published Online:12 August 2025,
Published:31 July 2025
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Yang XU, Chao WEI, Fuyong FENG, et al. Autonomous Landing of UAVs based on Spatio-temporal Decomposition Planning[J]. Acta Armamentarii, 2025, 46(7): 240653.
Yang XU, Chao WEI, Fuyong FENG, et al. Autonomous Landing of UAVs based on Spatio-temporal Decomposition Planning[J]. Acta Armamentarii, 2025, 46(7): 240653. DOI: 10.12382/bgxb.2024.0653.
空地协同系统中的无人车-无人机协同降落对拓展异构智能体集群的任务场景具有重要意义。目前基于轨迹优化的自主降落方法将时间与空间耦合在一起
通过设计最优控制律进行联合航迹优化
但存在优化目标函数设计较为复杂
无法发挥致动器最佳效能的问题。针对传统轨迹优化方法中时空维度过度耦合的问题
提出一种基于时空解耦的轨迹优化(Spatio-Temporal Decomposition Planning
STDP)方法
通过在空间与时间维度分别对降落轨迹进行优化
使无人机在复杂场景下采取更为激进的飞行策略。同时在设计目标函数时
综合考虑无人机的降落耗时以及电机功耗模型
以最优时间、能耗为控制目标构建2阶锥规划问题以加速求解
确保求解质量与效率。仿真结果表明
相较于时空耦合的规划方法
STDP方法规划出了更逼近运动学约束边界的轨迹
使得任务耗时大大缩减
提高了任务效率
同时实际场景中的测试结果也证明了STDP方法在实际应用中的可靠性。
In air-ground collaborative systems
the coordinated landing of unmanned ground vehicles (UGVs) and unmanned aerial vehicles (UAVs) is of paramount importance for extending the task scenarios of heterogeneous intelligent agent clusters.Current trajectory optimization-based autonomous landing methods couple the temporal and spatial dimensions by designing the optimal control laws for joint trajectory optimization.However
the optimization objective function design is relatively complex
and it cannot fully utilize the actuator’s optimal performance.A novel spatio-temporal decomposition planning (STDP) method is proposed to address the excessive coupling of time and space in traditional trajectory optimization methods.The STDP method optimizes the landing trajectories separately in spatial and temporal dimensions
enabling UAVs to adopt more aggressive flight strategies in complex scenarios.Furthermore
the objective function is meticulously designed to account for the UAV’s landing time and motor power consumption model
formulating a second-order cone programming problem to expedite the solution process while ensuring high-quality and efficient solutions.Simulated results indicate that
compared to spatio-temporal coupled planning methods
the STDP method generates the trajectories that closely adhere to kinematic constraints
substantially reducing the task completion time and enhancing the mission efficiency.Additionally
the empirical tests in real-world scenarios confirm the reliability and efficacy of STDP method in practical application.
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