System studies have been carried out over the past three years at the Jet Propulsion Laboratory (JPL) on digital audio broadcasting (DAB) via satellite. The thrust of the work to date has been on designing power and bandwidth efficient systems capable of providing reliable service to fixed, mobile, and portable radios. It is very difficult to predict performance in an environment which produces random periods of signal blockage, such as encountered in mobile reception where a vehicle can quickly move from one type of terrain to another. For this reason, some signal blockage mitigation techniques were built into an experimental DAB system and a satellite experiment was conducted to obtain both qualitative and quantitative measures of performance in a range of reception environments. This paper presents results from the experiment and some conclusions on the effectiveness of these blockage mitigation techniques.
A direct broadcast satellite-audio experiment
AIAA International Communication Satellite Systems Conference and Exhibit ; 1992 ; Washington, DC, United States
1992-01-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
A direct broadcast satellite-audio experiment
AIAA | 1992
|Direct broadcast satellite service by Direct Broadcast Satellite Corporation
Tema Archiv | 1984
|A new higher performance NGO satellite for direct audio/video broadcast
Online Contents | 2010
|A new higher performance NGO satellite for direct audio/video broadcast
Elsevier | 2009
|