Design of finite-time cooperative guidance law for hypersonic vehicles in dive phase

被引：0

作者：

Tang B. ^{[1
]}

Xi J. ^{[1
]}

Liu T. ^{[2
]}

Li B. ^{[3
]}

机构：

[1] College of Missile Engineering, Rocket Force University of Engineering, Xi'an

[2] Air Force Early Warning Academy, Wuhan

[3] The First Military Representative Office of Rocket Force Equipment Department in Xi'an, Xi'an

来源：

Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2021年 / 47卷 / 10期

关键词：

Adaptive disturbance observer; Cooperative guidance law; Finite-time theory; Hypersonic vehicle; Sliding mode control;

D O I：

10.13700/j.bh.1001-5965.2020.0363

中图分类号：

学科分类号：

摘要：

Focusing on the problem that multiple hypersonic vehicles in the dive phase attack a stationary target or a slowly moving target, a cooperative guidance law with Line-of-Sight (LOS) elevation and LOS azimuth constraint is designed based on finite-time theory. Firstly, the guidance process of the dive phase is divided into two directions: horizontal and longitudinal. Secondly, in the longitudinal LOS direction, the relative position difference and LOS velocity difference are introduced as errors into the guidance law, and the errors come from the hypersonic vehicles participating in the attack and their neighbors. Finally, in order to achieve the convergence of the horizontal and longitudinal LOS angles, the finite-time sliding mode guidance law is designed, and the upper bound of the time-varying disturbance is estimated by the designed adaptive disturbance observer. The finite-time convergence of the proposed cooperative guidance law is proved by Lyapunov function. The simulation results show that the proposed cooperative guidance law is correct and effective. © 2021, Editorial Board of JBUAA. All right reserved.

引用

页码：2105 / 2117

页数：12

共 32 条

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