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    Robust Trajectory Tracking Guidance for Low L/D Lunar Return Vehicles Using Command Filtered Backstepping Approach

    Source: Journal of Aerospace Engineering:;2018:;Volume ( 031 ):;issue: 002
    Author:
    Zhang Bo;Tang Shuo;Pan Binfeng
    DOI: 10.1061/(ASCE)AS.1943-5525.0000821
    Publisher: American Society of Civil Engineers
    Abstract: A reentry guidance method for low lift-to-drag (L/D) ratio vehicles in a lunar return mission is presented. Different from the reference drag tracking scheme, method in this paper tracks a weighted profile of altitude and downrange using a command filtered backstepping approach. First, the dynamics of the tracking error are established with dispersions and uncertainties explicitly taken into consideration. Then, in accordance with the backstepping technique, the weighted reference profile is tracked with the help of a virtual control signal. Next, by tracking the virtual control signal, a real control input is derived. Dispersions and uncertainties are accurately estimated by a well-designed disturbance observer and compensated for by the estimates. The derivatives of the virtual control needed by the backstepping algorithm are obtained by filtering the virtual control signal with a second-order command filter. Finally, the stability of the whole system is analyzed, and extensive numerical simulations are conducted to demonstrate the effectiveness and robustness of the proposed method.
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      Robust Trajectory Tracking Guidance for Low L/D Lunar Return Vehicles Using Command Filtered Backstepping Approach

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4247671
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    contributor authorZhang Bo;Tang Shuo;Pan Binfeng
    date accessioned2019-02-26T07:32:06Z
    date available2019-02-26T07:32:06Z
    date issued2018
    identifier other%28ASCE%29AS.1943-5525.0000821.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4247671
    description abstractA reentry guidance method for low lift-to-drag (L/D) ratio vehicles in a lunar return mission is presented. Different from the reference drag tracking scheme, method in this paper tracks a weighted profile of altitude and downrange using a command filtered backstepping approach. First, the dynamics of the tracking error are established with dispersions and uncertainties explicitly taken into consideration. Then, in accordance with the backstepping technique, the weighted reference profile is tracked with the help of a virtual control signal. Next, by tracking the virtual control signal, a real control input is derived. Dispersions and uncertainties are accurately estimated by a well-designed disturbance observer and compensated for by the estimates. The derivatives of the virtual control needed by the backstepping algorithm are obtained by filtering the virtual control signal with a second-order command filter. Finally, the stability of the whole system is analyzed, and extensive numerical simulations are conducted to demonstrate the effectiveness and robustness of the proposed method.
    publisherAmerican Society of Civil Engineers
    titleRobust Trajectory Tracking Guidance for Low L/D Lunar Return Vehicles Using Command Filtered Backstepping Approach
    typeJournal Paper
    journal volume31
    journal issue2
    journal titleJournal of Aerospace Engineering
    identifier doi10.1061/(ASCE)AS.1943-5525.0000821
    page4017105
    treeJournal of Aerospace Engineering:;2018:;Volume ( 031 ):;issue: 002
    contenttypeFulltext
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    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian