无动力滑翔高超声速飞行器轨迹预测方法

doi:10.3969/j.issn.1009-086x.2018.03.022

摘要/Abstract

摘要： 针对无动力滑翔高超声速飞行器轨迹预测问题及其应用需求,提出了基于动力学模型简化的轨迹预测方法。阐述了无动力滑翔高超声速飞行器预警探测面临的难点及轨迹预测在预警探测中的作用,说明了轨迹预测的必要性。分析了无动力滑翔高超声速飞行器的受力情况,通过合理的化简,得到简化的动力学模型,获得了运动轨迹的解析形式。设计了轨迹预测算法流程和轨迹预测精度的评价指标,通过仿真实验验证轨迹预测算法的有效性,并分析了引起轨迹预测误差的主要原因。

关键词: 轨迹预测, 无动力滑翔高超声速飞行器, 模型简化, 运动模型, 动力学模型, 临近空间

Abstract: Aiming at trajectory prediction of unpowered gliding hypersonic vehicle and its application requirements, a trajectory prediction algorithm is proposed based on kinetic model. The difficulties of unpowered gliding hypersonic vehicle defense and the function of trajectory prediction are expounded providing a basis for trajectory prediction. The simplified kinetic model is acquired on the basis of force analysis and reasonable shortcutting. The analytical trajectory equations are derived from kinetic model. The framework of trajectory prediction algorithm and the evaluation index are designed. To test and verify the efficiency of the trajectory prediction algorithm, simulation experiments are performed, and the main reasons causing prediction error are analyzed.

Key words: trajectory prediction, unpowered gliding hypersonic vehicle, model simplification, dynamic model, kinetic model, near space

中图分类号:

韩春耀, 熊家军, 张凯. 无动力滑翔高超声速飞行器轨迹预测方法[J]. 现代防御技术, 2018, 46(3): 146-151.

HAN Chun-yao, XIONG Jia-jun, ZHANG Kai. Method of Trajectory Prediction for Unpowered Gliding Hypersonic Vehicle[J]. Modern Defense Technology, 2018, 46(3): 146-151.

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