Computational Optimal Impact Angle Control Guidance Laws Weighted by Arbitrary Functions

This paper presents a computational impact angle control guidance law based on the energy cost weighted by arbitrary functions in order to shape the acceleration command as desired. The optimal guidance problem is established in the impact angle frame and is solved by the Gauss orthogonal collocatio...

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Bibliographic Details
Published in:International journal of aerospace engineering 2023-01, Vol.2023, p.1-19
Main Authors: Chen, Qi, Shi, Jinguang, Wang, Zhongyuan
Format: Article
Language:English
Subjects:
Aerospace engineering
Collocation methods
Control theory
Energy
Energy costs
Guidance (motion)
Impact angle
Kinematics
Missiles
Optimal control
Velocity
Weighting functions
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Summary:This paper presents a computational impact angle control guidance law based on the energy cost weighted by arbitrary functions in order to shape the acceleration command as desired. The optimal guidance problem is established in the impact angle frame and is solved by the Gauss orthogonal collocation method. The proposed guidance law is formulated from the generalized optimal control framework, thus a new guidance law that allows achieving a specific guidance goal can be easily obtained in the way of devising a proper weighting function (smooth, piecewise, nonsmooth, or even discontinuous). This property provides more degrees of freedom in the guidance law design to accomplish a specified guidance objective. A hardware experiment is conducted to evaluate the real-time computational capacity of the proposed computational guidance law. Illustrative examples with several types of weighting functions, including smooth, piecewise, nonsmooth, and discontinuous functions, are provided to demonstrate the advantages and capacity of the proposed guidance law.
ISSN:1687-5966
1687-5974
DOI:10.1155/2023/8747790