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A direct broadcast satellite-audio experimentSystem 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.
Document ID
19920047290
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vaisnys, Arvydas
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Abbe, Brian
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Motamedi, Masoud
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Communications And Radar
Report/Patent Number
AIAA PAPER 92-1995
Meeting Information
Meeting: AIAA International Communication Satellite Systems Conference and Exhibit
Location: Washington, DC
Country: United States
Start Date: March 22, 1992
End Date: March 26, 1992
Accession Number
92A29914
Distribution Limits
Public
Copyright
Other

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