When, in addition to the constant Doppler frequency shift induced by the bulk motion of a radar target, the target or any structure on the target undergoes micro-motion dynamics, such as mechanical vibrations or rotations, the micro-motion dynamics induce Doppler modulations on the returned signal, referred to as the micro-Doppler effect. We introduce the micro-Doppler phenomenon in radar, develop a model of Doppler modulations, derive formulas of micro-Doppler induced by targets with vibration, rotation, tumbling and coning motions, and verify them by simulation studies, analyze time-varying micro-Doppler features using high-resolution time-frequency transforms, and demonstrate the micro-Doppler effect observed in real radar data.


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    Titel :

    Micro-Doppler effect in radar: phenomenon, model, and simulation study


    Beteiligte:
    Chen, V.C. (Autor:in) / Li, F. (Autor:in) / Ho, S.-S. (Autor:in) / Wechsler, H. (Autor:in)


    Erscheinungsdatum :

    2006-01-01


    Format / Umfang :

    2998992 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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