Open AccessDesign of head-pursuit guidance law based on sliding mode control
Author(s) -
Chenqi Zhu,
Dejun Mu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/563/4/042076
Subject(s) - control theory (sociology) , sliding mode control , convergence (economics) , law , correctness , mode (computer interface) , computer science , variable structure control , control (management) , algorithm , nonlinear system , artificial intelligence , political science , physics , quantum mechanics , economics , economic growth , operating system
This paper proposes a new head-pursuit guidance law based on sliding mode control to intercept hypersonic vehicle in terminal phase. In order to alleviate chattering phenomenon caused by sliding mode control and ensure the convergence speed, the combination of linear sliding variable and fast power reaching law is adopted. Furthermore, an adaptive sliding mode guidance law is designed for solving the problem of unknown upper bound of the disturbance. Also, these algorithms are proved by the theoretical perspective based on finite-time convergence theory. Finally, numerical simulations are presented to illustrate the correctness and effectiveness of the methods.