A Collision Geometry-Based Guidance Law for Course-Correction-Projectile

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This paper proposes a new guidance law for a course-correction-projectile (CCP) with very limited maneuverability. Compared to existing approaches, the proposed guidance law is derived directly from collision geometry, which is the fundamental concept of guidance process, so that it allows collisions with minimal guidance command and zero final guidance command. In the proposed method, the collision geometry considering the motions of CCP, called collision-ballistic-trajectory, and the corresponding heading error are first determined using the ballistic trajectory prediction technique, which is based on the partial closed-form solutions of the ballistic trajectory equations in conjunction with the sensitivity technique. The proposed guidance law that nullifies this heading error over a finite time is then derived using a specific form of error dynamic equation. In this paper, the characteristics of the proposed guidance law are also investigated. Finally, numerical simulations demonstrate the characteristics and effectiveness of the proposed guidance law compared to the existing methods.
Publisher
SPRINGER
Issue Date
2019-06
Language
English
Article Type
Article
Citation

INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES, v.20, no.2, pp.442 - 458

ISSN
2093-274X
DOI
10.1007/s42405-018-0114-3
URI
http://hdl.handle.net/10203/262741
Appears in Collection
AE-Journal Papers(저널논문)
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