Design of Time-constrained Guidance Laws via Virtual Leader Approach

Guidance problems with flight time constraints are considered in this article. A new virtual leader scheme is used for design of guidance laws with time constraints. The core idea of this scheme is to adopt a virtual leader for real missiles to convert a guidance problem with time constraints to a n...

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Bibliographic Details
Published in:Chinese journal of aeronautics 2010-02, Vol.23 (1), p.103-108
Main Authors: Shiyu, Zhao, Rui, Zhou, Chen, Wei, Quanxin, Ding
Format: Article
Language:English
Subjects:
Flight time
guidance
Law
Laws
Missiles
Nonlinearity
Optimization
salvo attack
Simulation
Singularities
time constraint
virtual leader
制导律
最优制导规律
负责人
跟踪问题
领导人
飞行时间
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Summary:Guidance problems with flight time constraints are considered in this article. A new virtual leader scheme is used for design of guidance laws with time constraints. The core idea of this scheme is to adopt a virtual leader for real missiles to convert a guidance problem with time constraints to a nonlinear tracking problem,thereby making it possible to settle the problem with a variety of control methods. A novel time-constrained guidance （TCG） law, which can control the flight time of missiles to a prescribed time,is designed by using the virtual leader scheme and stability method. The TCG law is a combination of the well-known proportional navigation guidance（PNG） law and the feedback of flight time error. What＇ s more, this law is free of singularities and hence yields better performances in comparison with optimal guidance laws with time constraints. Nonlinear simulations demonstrate the effectiveness of the proposed law.
ISSN:1000-9361
DOI:10.1016/S1000-9361(09)60193-X