Three-dimensional nonlinear trajectory tracking control based on adaptive sliding mode

Zhenlin Zhang, Ke Zhang, Zhiguo Han

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A novel three-dimensional adaptive sliding mode controller (ASMC) is proposed for the nonlinear three-dimensional trajectory tracking of missiles. Firstly, the three-dimensional trajectory tracking problem is decomposed into the pitch channel and the yaw channel, and the trajectory tracking control model of each channel is established, respectively. Secondly, in the design process of the controller, a fast non-singular terminal sliding mode with finite-time convergence characteristics that can avoid singularities and a novel adaptive reaching law that can avoid chattering and accelerate convergence are introduced into the two channels. Thirdly, the Lyapunov stability analysis shows that the adaptive sliding mode tracking controller proposed in this paper can guarantee the rapid convergence and stability of the closed-loop system in the presence of modeling errors. Finally, simulation results show that the controller can effectively complete trajectory tracking under the influence of the wind disturbance and mismatched disturbances.

Original languageEnglish
Article number107734
JournalAerospace Science and Technology
Volume128
DOIs
StatePublished - Sep 2022

Keywords

  • Adaptive control
  • Missile
  • Nonlinear
  • Sliding mode control
  • Three-dimensional trajectory tracking

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