Finite-time attitude quantised control for rigid spacecraft

Han Gao, Yueyong Lv, Sing Kiong Nguang and Guangfu Ma

International Journal of Systems Science, 2018, vol. 49, issue 11, 2328-2340

Abstract: This paper investigates the quantised finite-time attitude control for rigid spacecraft in the presence of external disturbance. First, a novel quantiser is designed with the combination and improvement of the traditional hysteresis logarithmic quantiser and hysteresis uniform quantiser, so that the innovative quantiser in this paper has the advantages of both hysteresis and uniform quantisers in ensuring chattering free and acceptable quantisation errors for better transient and steady-state performances. Second, a finite-time controller is synthesised even under disturbances and quantisation errors, and the closed-loop system/state converges to the region near zero in finite time. Finally, the attitude stabilisation and attitude tracking simulation results for the rigid spacecraft are presented to illustrate the effectiveness and feasibility of the proposed control strategy.

Date: 2018
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DOI: 10.1080/00207721.2018.1501113

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