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    Multifrequency Decoding of a Phased Array Doppler Sodar

    Source: Journal of Atmospheric and Oceanic Technology:;2009:;volume( 026 ):;issue: 004::page 759
    Author:
    Rao, I. Srinivasa
    ,
    Anandan, V. K.
    ,
    Kumar, M. Shravan
    DOI: 10.1175/2008JTECHA1166.1
    Publisher: American Meteorological Society
    Abstract: Doppler sodar is being used for studying the lower part of atmospheric boundary layer (ABL) and wind profiling. To obtain maximum altitude coverage multifrequency transmission has been used along with more transmitted power. In this article, the implementation of multifrequency transmission of a Doppler sodar and its decoding to extract the atmospheric parameters are presented. This article also shows the advantage of profiling using multifrequency sodar operation. The range of frequency used for transmission is between 1700 and 2100 Hz. The decoded Doppler spectra have shown significant improvement in signal-to-noise ratio (SNR) as well as higher altitude coverage compared to single-frequency transmission and reception. Wind profiles obtained from sodar have been compared with data obtained from high-resolution GPS sonde balloons, which were launched from a place close to the sodar system. The authors observed that 30% more wind data height coverage in when transmission is in multifrequency mode; the consistency in wind estimate is also improved compared to the single-frequency transmission.
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      Multifrequency Decoding of a Phased Array Doppler Sodar

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4209169
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    contributor authorRao, I. Srinivasa
    contributor authorAnandan, V. K.
    contributor authorKumar, M. Shravan
    date accessioned2017-06-09T16:25:43Z
    date available2017-06-09T16:25:43Z
    date copyright2009/04/01
    date issued2009
    identifier issn0739-0572
    identifier otherams-67694.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4209169
    description abstractDoppler sodar is being used for studying the lower part of atmospheric boundary layer (ABL) and wind profiling. To obtain maximum altitude coverage multifrequency transmission has been used along with more transmitted power. In this article, the implementation of multifrequency transmission of a Doppler sodar and its decoding to extract the atmospheric parameters are presented. This article also shows the advantage of profiling using multifrequency sodar operation. The range of frequency used for transmission is between 1700 and 2100 Hz. The decoded Doppler spectra have shown significant improvement in signal-to-noise ratio (SNR) as well as higher altitude coverage compared to single-frequency transmission and reception. Wind profiles obtained from sodar have been compared with data obtained from high-resolution GPS sonde balloons, which were launched from a place close to the sodar system. The authors observed that 30% more wind data height coverage in when transmission is in multifrequency mode; the consistency in wind estimate is also improved compared to the single-frequency transmission.
    publisherAmerican Meteorological Society
    titleMultifrequency Decoding of a Phased Array Doppler Sodar
    typeJournal Paper
    journal volume26
    journal issue4
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/2008JTECHA1166.1
    journal fristpage759
    journal lastpage768
    treeJournal of Atmospheric and Oceanic Technology:;2009:;volume( 026 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian