Abstract A robust entry guidance law without drag rate measurement is designed for drag-tracking in this paper. The bank angle is regarded as the control variable. First, a state feedback guidance law (bank angle magnitude) that requires the drag and its rate as feedback information is designed to make the system with the drag-tracking error and its rate as states be input-to-state stable (ISS) with respect to uncertainties. Then a high-gain observer is utilized to estimate the drag rate which is difficult for a vehicle to measure accurately in practice. Stability analysis as well as simulation results shows the effectiveness of the presented approach.


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    Title :

    Drag-tracking guidance for entry vehicles without drag rate measurement


    Contributors:
    Yan, Han (author) / He, Yingzi (author)

    Published in:

    Publication date :

    2015-03-25


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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