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A Minimum Operator Based Discrete-Time Super-Twisting-Like Algorithm
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DOI：10.1109/TCSII.2023.3298834.png)
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Abstract
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In this brief, a minimum operator (MO) based approach is proposed for discrete-time super-twisting-like algorithm which has different roots unlike its contemporaries, most of which are based on Euler-discretization (ED). The algorithm is proposed for both unperturbed and perturbed cases. The application of this algorithm is further explored for the super-twisting observer (STO) that yields the finite-time estimation of the system states. An illustrative example of a pendulum system with known as well as unknown input is considered for the state observation problem. Simulation results show the effectiveness of the proposed algorithm.
Keywords:
Discrete-time sliding mode control
super-twisting algorithm
minimum operator
observer design
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