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    Optimal soft landing control for moon lander

    Access Status
    Fulltext not available
    Authors
    Liu, X.
    Duan, G.
    Teo, Kok Lay
    Date
    2008
    Type
    Journal Article
    
    Metadata
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    Citation
    Liu, X. and Duan, G. and Teo, K.L. 2008. Optimal soft landing control for moon lander. Automatica. 44 (4): pp. 1097-1103.
    Source Title
    Automatica
    DOI
    10.1016/j.automatica.2007.08.021
    ISSN
    0005-1098
    School
    Department of Mathematics and Statistics
    URI
    http://hdl.handle.net/20.500.11937/8805
    Collection
    • Curtin Research Publications
    Abstract

    This paper considers the soft landing problem of a moon lander. The main purpose is to design the optimal control law to ensure the soft landing of the lander with the least fuel consumption. It is formulated as a constrained optimal control problem, where specific requirements of this soft landing problem are all incorporated in the problem formulation. Then, by utilizing the specific features of the problem, this optimal soft landing problem is transformed into an equivalent standard optimal control problem subject to continuous state inequality constraints. A computational method is developed, based on the control parameterization in conjunction with a time scaling transform and the constraint transcription method, to design the optimal controller for this new constrained optimal control problem. Numerical results are presented for illustration. © 2007 Elsevier Ltd. All rights reserved.

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