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Journal of Projectiles, Rockets, Missiles and Guidance >

2019 , Vol. 39 >Issue 6: 155 - 159

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.06.034

Nonsingular Fast Terminal Second-order Sliding Mode Guidance Law with Impact Angle Constraints

  • YOU Hao 1 ,
  • ZHAO Jiufen 1 ,
  • LI Peng 1 ,
  • SONG Linhao 2
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  • 1 Rocket Force University of Engineering, Xi’an 710025, China
  • 2 Department of Support Equipment, China Electronics Technology Instruments Co.Ltd, Shandong Qingdao 266000, China

Received date: 2018-11-14

  Online published: 2025-05-12

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Abstract

In order to attack ground maneuvering targets with angle constraint,a finite-time sliding mode guidance law with impact angle constraint is proposed based on non-singular fast terminal sliding mode and second-order sliding mode control theory.The non-singular fast terminal sliding surface is selected to improve the convergence speed of the system state.The design of guidance law based on second-order sliding mode control theory effectively suppresses the chattering phenomenon,and avoids the singular problem in the design process of guidance law.A nonhomogeneous disturbance observer is designed to estimate and compensate the external disturbance caused by target maneuvering information.The simulation results verify the effectiveness and superiority of the proposed guidance law.

Key words： impact angle constraint; maneuvering targets; second-order sliding mode; chattering

Cite this article

YOU Hao , ZHAO Jiufen , LI Peng , SONG Linhao . Nonsingular Fast Terminal Second-order Sliding Mode Guidance Law with Impact Angle Constraints[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2019 , 39(6) : 155 -159 . DOI: 10.15892/j.cnki.djzdxb.2019.06.034

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