In this paper, the three-dimensional terminal guidance problem of a missile intercepting a maneuvering target is studied. Augmented proportional navigation (PN) guidance laws based on Lyapunov stability theory are presented. Augmented terms are target accelerations such that proposed guidance laws have the ability to track the target maneuver. But, target accelerations cannot be accurately obtained in practice. To solve this problem, the nonlinear disturbance observer (NDOB) technology is introduced to estimate target accelerations. Estimated target accelerations will be employed as compensation terms in the proposed augmented PN guidance laws. Composite guidance laws combining augmented PN guidance laws with NDOB are proposed. Finally, simulation comparison results are provided to demonstrate the effectiveness of the presented guidance laws.


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    Title :

    Guidance laws based on Lyapunov theory and DOB for three-dimensional missile-target interception


    Contributors:
    Zhang, Zhenxing (author) / Man, Chaoyuan (author) / Li, Shihua (author) / Jin, Shi (author)


    Publication date :

    2014-08-01


    Size :

    152354 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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