Cui L, Jin N, Chang S, Zuo Z, Zhao Z. Fixed-time ESO based fixed-time
integral terminal sliding mode controller design for a missile.
ISA Trans 2022;
125:237-251. [PMID:
34303528 DOI:
10.1016/j.isatra.2021.06.039]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 06/26/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
This paper studies a novel fixed-time extended state observer based fixed-time integral terminal sliding mode controller for partial integrated guidance and control design. Firstly, a class of arbitrary-order systems with fixed-time stability is proposed by utilizing homogeneous approach, whose upper bound of convergence time is given. Then, an arbitrary-order fixed-time integral terminal sliding mode control is designed based on the proposed arbitrary-order fixed-time stable system, which avoids the singular problem. Subsequently, this paper constructs a new fixed-time extended state observer to further actively compensate for the disturbance caused by unknown target acceleration. Finally, numerical simulations show the effectiveness of the proposed controller.
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