Title :
Long distance site-diversity (SD) characteristics by using new measuring system
Author :
Hatsuda, T. ; Mitsuhashi, R. ; Aoki, Y. ; Echigo, H. ; Takahata, F. ; Maekawa, Y. ; Fujisaki, K.
Author_Institution :
Hokkaido Inst. of Technol., Sapporo, Japan
Abstract :
This paper deals with the short and long distance (10-1400 km) site-diversity (SD) characteristics by using a newly developed measuring system. In the proposed measuring method six Earth-stations transmit QPSK signals and one measuring Earth-station receives signals and processes them for site-diversity characteristics. As a result, easy operation and maintenance, low cost measuring system construction and high accuracy data can be obtained. By comparing these measured results with the site-diversity joint probability approximation equation in CCIR Rep. 564-4, relatively good agreement can be found.
Keywords :
VSAT networks; diversity reception; quadrature phase shift keying; 10 to 1400 km; CCIR Rep. 564-4; Earth-stations; QPSK signals; long distance site-diversity characteristics; measuring system; short distance site-diversity; site-diversity joint probability approximation equation; Area measurement; Attenuation; Frequency measurement; Frequency synchronization; Quadrature phase shift keying; Rain; Satellite communication; Signal processing; Transmission line measurements; Transponders;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.789165
