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Ku-band long distance site-diversity (SD) Characteristics using new measuring system

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6 Author(s)
Hatsuda, T. ; Hokkaido Inst. of Technol., Sapporo, Japan ; Aoki, Y. ; Echigo, H. ; Takahata, F.
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This paper deals with the short (10 km) and long distance (300-1400 km) site-diversity (SD) characteristics by using a newly developed measuring system. In the proposed measuring system, six earth stations transmit 14-GHz band QPSK signals, and one measuring earth station receives 12-GHz band signals and processes them to determine SD characteristics. As a result, easy operation and maintenance, low-cost measuring system construction and highly accurate data have been obtained. By comparing those measured results with the SD joint probability approximation equation in ITU-R Rec.P.618-7, a good agreement can be obtained. Furthermore, the effect of typhoons on SD characteristics were measured.

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Antennas and Propagation, IEEE Transactions on  (Volume:52 ,  Issue: 6 )