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Proceedings Paper

Variable structure guidance with auto-generated impact angle constraint based on fuzzy strategy
Author(s): Jun-hui Xiong; Liang-ci Dong; Tao Zhao; Wei Shang
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Paper Abstract

An appropriate impact angle constraint can not only decrease the approaching velocity but also enlarge the effective collision area of hypersonic interception, improving the interception probability. Based on the principle of quasi parallel approaching, the impact angle constraint is converted into line-of-sight angle constraint according to the initial estimation of target velocity and velocity vector. The guidance law with line-of-sight angle constraint is presented via variable structure control. On the basis of qualitative analysis on interception performances, the fuzzy strategy is proposed to generate the appropriate impact angle and weight coefficient of constraint. It is concluded that, the proposed guidance achieves to guide the line-of-sight to close to zero as well as reach the expected impact angle that automatically generated by the fuzzy controller. Moreover, the miss distance and applicability to target information estimation error are satisfied.

Paper Details

Date Published: 31 August 2018
PDF: 6 pages
Proc. SPIE 10835, Global Intelligence Industry Conference (GIIC 2018), 108350V (31 August 2018); doi: 10.1117/12.2503908
Show Author Affiliations
Jun-hui Xiong, Hubei Space Technology Academy (China)
Liang-ci Dong, Hubei Space Technology Academy (China)
Tao Zhao, Hubei Space Technology Academy (China)
Wei Shang, Hubei Space Technology Academy (China)

Published in SPIE Proceedings Vol. 10835:
Global Intelligence Industry Conference (GIIC 2018)
Yueguang Lv, Editor(s)

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