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https://doi.org/10.1007/s11071-018-4362-3

has been cited by the following article:

• TITLE: Fixed Time Control of Dynamic Positioning Ship with Unknown Interference

  AUTHORS: Peng Xu

  KEYWORDS: Dynamic Positioning, Fixed-Time Observer, Sliding Mode Control

  JOURNAL NAME: Open Journal of Applied Sciences, Vol.10 No.5, May 27, 2020

  ABSTRACT: This paper proposes a fixed-time control scheme to ensure that the dynamic positioning can accurately reach the specified position under external interference. A fixed-time state observer was developed to accurately estimate the total external unknown interference. Based on the dynamic positioning ship motion model, the inversion design method is used to ensure the stability of the system and eliminate various uncertain effects. A fixed-time backstepping sliding mode controller is designed. Finally, the simulation results show that the method has good performance and advantages.