Measured results of time delayed diversity (TDD) system characteristics for mobile broadcast satellite system

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.