Short-term frequency scaling of clear-sky and wet amplitude scintillation

S.I.E. Touw, M.H.A.J. Herben

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    Abstract

    For the design of uplink power control (ULPC) systems that can compensate for different types of fading, the short-term frequency scaling factor of all types of fading is needed. Attention is focused on the short-term frequency scaling factor of clear-sky amplitude scintillation and amplitude scintillation (using the measurements of the 12.5/20/30GHz beacon signals) occurring with rain attenuation simultaneously, often referred to as wet amplitude scintillation. It is shown that these factors are strongly variable: they depend on various meteorological parameters and on the aperture illumination efficiency of the receiving antenna. In addition, it is shown that amplitude scintillation can only be compensated partly by means of ULPC, owing to the limited correlation of amplitude scintillation measured on two radiowaves with different carrier frequencies propagating along the same path simultaneously. Furthermore, a new procedure is presented to separate rain attenuation and amplitude scintillation
    Original languageEnglish
    Pages (from-to)521-526
    Number of pages6
    JournalIEE Proceedings - Microwaves, Antennas and Propagation
    Volume143
    Publication statusPublished - 1996

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