In conventional synthetic aperture radar (SAR) systems, the image of a moving target is usually mislocated. This is because the Doppler shift of the moving target is determined not only by its geometric location but also by its velocity. After range compression and auto-focusing, the Doppler frequency of the moving target is still time varying and the Doppler centroid is shifted. As a result, the SAR image of a moving target is smeared and the image location of the target may not reflect its true geometric location. In this paper, a dual-speed SAR imaging approach, i.e., the radar platform flies with two different speeds in the radar observation time duration, is proposed to resolve the above two problems, especially mislocation of a moving target.


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    Title :

    Dual-speed SAR imaging of moving targets


    Contributors:
    Genyuan Wang (author) / Xiang-Gen Xia (author) / Chan, V.C. (author)


    Publication date :

    2006-01-01


    Size :

    1208351 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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