Data-takes on two ascending orbits of the Shuttle Imaging Radar-B (SIR-B) over an agricultural test site in west-central Illinois were used to establish end-to-end transfer functions for conversion of an 8-bit image digital number to the radar backscattering coefficient. The transfer function for each data-take was defined by radar response to an array of six calibrated transponders and to area-extended targets measured by externally calibrated, truck-mounted scatterometers. The radar cross section of each transponder was measured on an antenna range. The truck-mounted scatterometers observed 20 to 80 fields daily at L-band with HH polarization and at azimuth viewing angles and incidence angles equivalent to those of the SIR-B. For each pass, the SIR-B's thermal noise was estimated from surfaces expected to yield specular reflection.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    External calibration of SIR-B imagery with area-extended and point targets


    Weitere Titelangaben:

    Externe Kalibrierung von SIR-B Darstellungen mit Gelaende- und punktfoermigen Zielen


    Beteiligte:
    Dobson, M.C. (Autor:in) / Ulaby, F.T. (Autor:in) / Brunfeldt, D.R. (Autor:in) / Held, D. (Autor:in)


    Erscheinungsdatum :

    1985


    Format / Umfang :

    2 Seiten


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






    Camera calibration using fixed calibration targets

    CURLANDER JAMES CHRISTOPHER / KIMCHI GUR / O'BRIEN BARRY JAMES et al. | Europäisches Patentamt | 2018

    Freier Zugriff

    UNIVERSAL CALIBRATION TARGETS AND CALIBRATION SPACES

    Europäisches Patentamt | 2024

    Freier Zugriff

    UNIVERSAL CALIBRATION TARGETS AND CALIBRATION SPACES

    CHAN JUN SHERN / DIAZ ALEJANDRO ISRAEL BARRAGAN / RUIZ FRANCISCO ALEJANDRO SUAREZ et al. | Europäisches Patentamt | 2023

    Freier Zugriff