In this paper a discussion on the difference between point-like targets and distributed scene in SAR images is presented starting from basic radar equations. The target detection requirements are formulated considering also the speckle characteristics of the distributed scattering of the background. An equation is presented for the estimation of the minimum radar cross section of a target to become detectable within a scene with speckled distributed background and detection criteria are discussed for the multi-look case. Experimental evaluations are based on airborne SAR data of a calibration test site.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Detecting Weak Targets in a Speckled Distributed Scene by SAR Reconfiguration


    Beteiligte:
    Tomiyasu, Kiyo (Autor:in) / Scheiber, Rolf (Autor:in)

    Kongress:

    2009 ; Pasadena, California, USA



    Erscheinungsdatum :

    2009-05-04


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Deutsch




    Estimation of Spectra from Speckled Images

    Goldfinger, Andrew D. | IEEE | 1982


    Information theory-based snake segmentation adapted to speckled images

    Ruch, Olivier / Goudail, Francois / Refregier, Philippe | SPIE | 2003


    Using speckled speckles in high-resolution measurement of bioflow [3904-62]

    Ulyanov, S. S. / SPIE / European Optical Society | British Library Conference Proceedings | 1999


    Territorial defence in speckled wood butterflies: why does the resident always win?

    Austad, Steven N. / Jones, W.Thomas / Waser, Peter M. | Elsevier | 1979