A Novel Fixed-Time Convergence Guidance Law against Maneuvering Targets

Yaosong Long, Chao Ou, Chengjun Shan and Zhongtao Cheng ()
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Yaosong Long: School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Chao Ou: School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Chengjun Shan: School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Zhongtao Cheng: School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Mathematics, 2023, vol. 11, issue 9, 1-15

Abstract: In this paper, a new fixed-time convergence guidance law is proposed against maneuvering targets in the three-dimensional (3-D) engagement scenario. The fixed-time stability theory is used to zero the line-of-sight (LOS) angle rate, which will ensure the collision course and the impact of the target. It is proven that the convergence of the LOS angle rate can be achieved before the final impact time of the guidance process, regardless of the initial conditions. Furthermore, the convergence rate is merely related to control parameters. In theoretical analysis, the convergence rate and upper bound are compared with that of other laws to show the potential advantages of the proposed guidance law. Finally, simulations are carried out to illustrate the effectiveness and robustness of the proposed guidance law.

Keywords: three-dimensional engagement; maneuvering target; LOS angle rate; collision course; fixed-time convergence (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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