Frequency dependence of amplitude scintillation

M.M.J.L. Kamp, van de, C. Riva, J.K. Tervonen, E.T. Salonen

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    15 Citaten (Scopus)
    302 Downloads (Pure)

    Samenvatting

    In the prediction models of tropospheric scintillation on earth-satellite paths from Karasawa, Yamada, and Allnutt and ITU-R, the frequency dependence of scintillation is expressed as a power law with a different exponent for each model. In this paper, this is verified using a collection of measurement results from different satellite links in Europe, the U.S., and Japan at frequencies from 4 to 50 GHz and elevation angles from 2.5 to 52°. It shows that the exponent of the power law varies widely among the results from the different sites. Possible explanations of this are: 1) the frequency dependence of scintillation due to cloudy turbulence is different from that due to clear-sky turbulence and this kind of scintillation may be present to different extents in the various databases due to climatic differences and different clear-sky selection procedures or 2) angle-of-arrival fluctuations due to turbulence have a different frequency dependence and this effect may have some impact on the measured scintillation at some of the sites.
    Originele taal-2Engels
    Pagina's (van-tot)77-85
    Aantal pagina's9
    TijdschriftIEEE Transactions on Antennas and Propagation
    Volume47
    Nummer van het tijdschrift1
    DOI's
    StatusGepubliceerd - 1999

    Vingerafdruk

    Duik in de onderzoeksthema's van 'Frequency dependence of amplitude scintillation'. Samen vormen ze een unieke vingerafdruk.

    Citeer dit