Bistatic inverse synthetic aperture radar (ISAR) is an efficient geometric configuration of ISAR to image targets traveling along radar transmitter's line of sight, but it has the problem of defocusing and distortion because of the time-varying bistatic angle. In this paper, we derive the defocusing term and the distortion term by expanding the bistatic angle using first-order Taylor expansion. In addition, necessary constraints to neglect the defocusing term are provided via point spread function analysis, and a novel method to eliminate distortion based on linked scatterers is proposed. Simulation results validate our theoretical analysis and show the effectiveness of our method.


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    Title :

    Bistatic ISAR distortion and defocusing analysis


    Contributors:
    Yicheng Jiang (author) / Sibo Sun (author) / Tat Soon Yeo (author) / Yeshu Yuan (author)


    Publication date :

    2016-06-01


    Size :

    1069844 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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