Detection of hazardous wind shears from an airborne platform, using commercial sized radar hardware, has been debated and researched for several years. The primary concern has been the requirement for 'look-down' capability in a Doppler radar during the approach and landing phases of flight. During 'look-down' operation, the received signal (weather signature) will be corrupted by ground clutter returns. Ground clutter at and around urban airports can have large values of Normalized Radar Cross Section (NRCS) producing clutter returns which could saturate the radar's receiver, thus disabling the radar entirely, or at least from its intended function. The purpose of this research was to investigate the NRCS levels in an airport environment (scene), and to characterize the NRCS distribution across a variety of radar parameters. These results are also compared to results of a similar study using Synthetic Aperture Radar (SAR) images of the same scenes. This was necessary in order to quantify and characterize the differences and similarities between results derived from the real-aperature system flown on the NASA 737 aircraft and parametric studies which have previously been performed using the NASA airborne radar simulation program.


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    Titel :

    Ground Clutter Measurements Using the NASA Airborne Doppler Radar: Description of Clutter at the Denver and Philadelphia Airports


    Beteiligte:
    S. D. Harrah (Autor:in) / V. E. Delnore (Autor:in) / M. S. Goodrich (Autor:in) / C. Vonhagel (Autor:in)

    Erscheinungsdatum :

    1992


    Format / Umfang :

    18 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Ground clutter calculation for airborne doppler radars

    Helgöstam, Lars F. / Ronnerstam, Bo | TIBKAT | 1965


    Radar Returns from Ground Clutter in Vicinity of Airports

    H. R. Raemer / R. Rahgavan / A. Bhattacharya | NTIS | 1988


    Radar returns from ground clutter in vicinity of airports

    Raemer, H. R. / Rahgavan, R. / Bhattacharya, A. | NTRS | 1988