YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Atmospheric and Oceanic Technology
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Atmospheric and Oceanic Technology
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Polarimetric Properties of Chaff

    Source: Journal of Atmospheric and Oceanic Technology:;2004:;volume( 021 ):;issue: 007::page 1017
    Author:
    Zrnić, Dušan S.
    ,
    Ryzhkov, Alexander V.
    DOI: 10.1175/1520-0426(2004)021<1017:PPOC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Chaff contaminates estimates of precipitation amounts; hence, it is important to remove (or censor) its presence from the fields of radar reflectivity. It is demonstrated that efficient and direct identification of chaff is possible with a polarimetric radar. Specifically considered are the horizontal and vertical polarization basis and covariances of corresponding returned signals. Pertinent polarimetric variables are the copolar correlation coefficient, differential reflectivity, and the linear depolarization ratio. Two models are used to compute the expected values of these variables. In one, chaff is approximated with a Hertzian dipole and, in the other, with a thin wire antenna. In these models chaff is assumed to have a uniform distribution of flutter angles (angle between the horizontal plane and chaff axis). The two models produce nearly equivalent results. Also shown are polarimetric signatures of chaff observed in the presence of precipitation. Inferences about chaff's orientation are made from comparisons between measured and observed differential reflectivity and the cross-correlation coefficient.
    • Download: (350.3Kb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Polarimetric Properties of Chaff

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4159823
    Collections
    • Journal of Atmospheric and Oceanic Technology

    Show full item record

    contributor authorZrnić, Dušan S.
    contributor authorRyzhkov, Alexander V.
    date accessioned2017-06-09T14:38:11Z
    date available2017-06-09T14:38:11Z
    date copyright2004/07/01
    date issued2004
    identifier issn0739-0572
    identifier otherams-2328.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4159823
    description abstractChaff contaminates estimates of precipitation amounts; hence, it is important to remove (or censor) its presence from the fields of radar reflectivity. It is demonstrated that efficient and direct identification of chaff is possible with a polarimetric radar. Specifically considered are the horizontal and vertical polarization basis and covariances of corresponding returned signals. Pertinent polarimetric variables are the copolar correlation coefficient, differential reflectivity, and the linear depolarization ratio. Two models are used to compute the expected values of these variables. In one, chaff is approximated with a Hertzian dipole and, in the other, with a thin wire antenna. In these models chaff is assumed to have a uniform distribution of flutter angles (angle between the horizontal plane and chaff axis). The two models produce nearly equivalent results. Also shown are polarimetric signatures of chaff observed in the presence of precipitation. Inferences about chaff's orientation are made from comparisons between measured and observed differential reflectivity and the cross-correlation coefficient.
    publisherAmerican Meteorological Society
    titlePolarimetric Properties of Chaff
    typeJournal Paper
    journal volume21
    journal issue7
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/1520-0426(2004)021<1017:PPOC>2.0.CO;2
    journal fristpage1017
    journal lastpage1024
    treeJournal of Atmospheric and Oceanic Technology:;2004:;volume( 021 ):;issue: 007
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian