The global range alignment has a good performance in inverse synthetic aperture radar (ISAR) imaging. The shifts made to the echoes are modeled as a polynomial, and the coefficients of this polynomial are chosen to optimize a quality measure of range alignment. The shift in the time domain is implemented by introducing a phase ramp in the frequency domain in order to remove the limitation of integer steps. However, in this method, the quality measure of range alignment need be calculated in the time domain, which is time consuming. In this paper, we present a new expression for the quality measure of range alignment so that it can be calculated directly in the frequency domain. This raises the computational efficiency of the algorithm significantly.


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    Titel :

    Improvement of ISAR global range alignment


    Beteiligte:
    Junfeng Wang, (Autor:in) / Xingzhao Liu, (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    214079 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    CORRESPONDENCE - Global Range Alignment for ISAR

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