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Cooperative trajectory shaping guidance law for multiple anti-ship missiles

Published online by Cambridge University Press:  08 May 2023

G. Yang
Affiliation:
School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, China
Y. Fang
Affiliation:
Unmanned System Research Institute, Northwestern Polytechnical University, Xi’an, China
W. Ma*
Affiliation:
School of Automation, Northwestern Polytechnical University, Xi’an, China
S. Zhu
Affiliation:
School of Astronautics, Northwestern Polytechnical University, Xi’an, China
W. Fu
Affiliation:
Unmanned System Research Institute, Northwestern Polytechnical University, Xi’an, China
*
Corresponding author: W. Fu; Email: wenxingfu@nwpu.edu.cn

Abstract

To enhance the performance of anti-ship missiles cooperative attack, this paper proposes a finite-time trajectory shaping-based cooperative guidance law (TSCGL). Firstly, the cooperative guidance model is established on segmented linearisation of the missile’s heading angle. Then, a trajectory shaping guidance law for a single missile is derived by a weighted optimal energy cost function and Schwarz inequality. On this basis, a finite-time TSCGL is proposed combined with trajectory shaping technology and finite-time theory. The desirable finite-time convergence performance can ensure a simultaneous attack. Through an improved method of time-to-go estimation, it is independent of small-angle assumption and relaxes the launching conditions of the missiles. Additionally, the proposed finite-time TSCGL can achieve better damage performance through energy management. Finally, simulation results demonstrate the effectiveness and superiority of the proposed finite-time TSCGL.

Information

Type
Research Article
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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