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所属单位：航天学院

发表刊物：Adv Astronaut Sci

摘要：The paper presents a novel variable structure control with finite time sliding sector for spacecraft atmospheric entry guidance. The finite time convergence of tracking error in the presence of system uncertainty can be guaranteed. In contrast with the normally used notion of asymptotic stability in conventional sliding sector, a finite time sliding sector is defined as a subset of state space in which the Lyapunov function candidate satisfies the finite time stability condition. Then, the finite time sliding sector controller is designed to guarantee the tracking error to converge to a small region of zero. The chattering existing on the boundary of the sliding sector is further reduced by replacing the signum function with the saturation function. Finally, numerical simulation results are given to demonstrate the effectiveness of the proposed method. © 2018 KASHYAP.

ISSN号：0065-3438

是否译文：否

发表时间：2018-01-01

合写作者：李爽,Wang, Weihua,Lin, Tianfu

通讯作者：胥彪