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1 results

  • Space Flyaround and In-orbit Inspection Coupled Control Based on Dual Numbers

  • Lijun Zhang, Hanqiu Li, Jianping Liu, Shan Qian, Yi Lu, Hengnian Li
  • Journal:
    The Journal of Navigation / Volume 71 / Issue 5 / September 2018
    Published online by Cambridge University Press:
    03 May 2018, pp. 1088-1110
    Print publication:
    September 2018

  • In this paper, both the proportional derivative feedback control and variable-structure sliding mode control approaches based on dual numbers are presented to design space flyaround and in-orbit inspection missions. Dual-number-based spacecraft kinematics and dynamics models are formulated. The integrated translational and rotational motions can be described in one compact expression, and the mutual coupling effect can be considered. A space flyaround and in-orbit inspection mission model based on dual numbers is derived. Both proportional derivative feedback control and variable-structure sliding mode control laws are designed using dual numbers. Simulation results indicate that both the proposed control system can provide high-precision control for relative position and attitude. Of the two systems, the variable-structure sliding mode control system performs the best.