Highlights The fractional state feedback and discontinuous controller is avoided. The computational complexity dramatically decreases by the proposed control method. The algorithm is conducive to the deployment of the digital signal processing system.
Abstract This paper investigates a novel finite-time attitude control method for the postcapture spacecraft with an unknown captured space target in the presence of input faults and quantization. First, a quasi fixed-time convergent performance function is developed to quantitatively characterize the attitude tracking performance. Then, a backstepping prescribed performance attitude controller is devised via using integral barrier Lyapunov function. Compared with the existing works, the fractional state feedback and discontinuous controller is directly avoided to achieve the fixed-time convergence rate. Namely, the proposed fixed-time controller is easily achieved online. Finally, two groups of illustrative examples are organized to validate the effectiveness and robustness of the proposed control method.
Novel finite-time attitude control of postcapture spacecraft with input faults and quantization
Advances in Space Research ; 65 , 1 ; 297-311
2019-09-17
15 pages
Article (Journal)
Electronic Resource
English
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