An off-target look angle control guidance law for nonmaneuvering moving targets is proposed. Unlike impact angle control guidance laws whose angle requirement is defined on the target, the proposed guidance law controls a look angle on a virtual circle centered on the moving target in the horizontal plane. A closed-form solution is derived using optimal control theory for a nonlinear problem formulation. The resulting guidance law can be expressed as a version of biased proportional navigation. It is shown how the new off-target look angle control can be applied in midcourse guidance problems to handover to terminal homing. The scenarios described include generating a collision course condition at a designated distance from a moving target, circling over a moving target, and attaining a desired look angle on the circle for a fixed target.


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    Title :

    Off-Target Look Angle Control Guidance Law for Moving Targets


    Contributors:

    Published in:

    Publication date :

    2019-11-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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