Supanakoon, Pichaya

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Supanakoon, Pichaya
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Supanakoon, P.
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pichaya.su@kmitl.ac.th

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    Regression models of ultra wideband ground reflection path loss based on peak power loss
    (2007-12-01)
    Supanakoon, Pichaya
    ;
    Pokang, Apiradee
    ;
    Promwong, Sathaporn
    ;
    Noppanakeepong, Suthichai
    ;
    Takada, Jun Ichi
    In this paper, the regression models of ultra wideband (UWB) ground reflection path loss are proposed. The UWB ground reflection path loss is defined as the ratio between the maximum amplitude of the transmitted and received signal waveforms. The polarizations of transmitted signal and ground characteristics are considered. The double and triple linear regression models are derived from the closed form expression of ground reflection path loss based on peak power loss. The regression models are shown and compared with the closed form expression. From the results, the double and triple linear regression models are appropriate for conductor and dielectric grounds, respectively. Therefore, these proposed regression models are the one choice for modeling the UWB ground reflection path loss. ©2007 IEEE.
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    Ground reflection path loss based on average power loss for ultra wideband communications
    (2007-12-01)
    Supanakoon, Pichaya
    ;
    Kaewsirisin, Sarunya
    ;
    Promwong, Sathapom
    ;
    Noppanakeepong, Suthichai
    ;
    Takada, Jun Ichi
    In this paper, the ground reflection path loss based on average power loss for ultra wideband (UWB) communications is proposed. The expression is derived from the rectangular passband waveform and extension of Friis" transmission formula in the terms of the closed form formula based on average power loss. The results are compared with other models and verified with the measurement result. From the results, this proposed model corresponds with compared models and measurement result.