Title :
Measured results of time delayed diversity (TDD) system characteristics for mobile broadcast satellite system
Author :
Hatsuda, T. ; Utada, D. ; Tsukahara, T.
Author_Institution :
Hokkaido Inst. of Technol., Sapporo, Japan
Abstract :
This paper deals with the time delayed diversity (TDD) system characteristics for mobile broadcast geostationary satellite orbit (GSO) system measured by using the GPS (Global Positioning System) satellite. To design digital mobile broadcast satellite system with TDD concept, it must estimate attenuation characteristics by urban building, electrical light poles and trees etc. Southern orbital arc GPS satellite signals with elevation angle about 40 degrees data are used for propagation characteristics measurements, rather than actual GSO satellite. To overcome urban signal attenuation, the effect of TDD system characteristics are examined from processing measured GPS data.
Keywords :
Global Positioning System; digital radio; diversity reception; mobile satellite communication; radiowave propagation; GPS satellite; attenuation characteristics; digital broadcast satellite system; electrical light poles; geostationary satellite orbit system; mobile broadcast satellite system; time delayed diversity system; trees; urban building; urban city; Buildings; Delay effects; Delay systems; Extraterrestrial measurements; Global Positioning System; Optical attenuators; Optical propagation; Position measurement; Satellite broadcasting; Time measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220425
