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A digitally implemented communications experiment utilizing the Hermes (CTS) satelliteThe Hermes (CTS) experiment program made possible a significant effort directed toward new developments which will reduce the costs associated with the distribution of satellite services. Advanced satellite transponder technology and small inexpensive earth terminals were demonstrated as part of the Hermes program. Another system element that holds promise for reduced transmission cost is associated with the communication link implementation. An experiment is described which uses CTS to demonstrate digital link implementation and its advantages over conventional analog systems. A Digitally Implemented Communications experiment which demonstrates the flexibility and efficiency of digital transmission of television video and audio, telephone voice and high-bit-rate data is also described. Presentation of the experiment concept which concentrates on the evaluation of full-duplex digital television in the teleconferencing environment is followed by a description of unique equipment that was developed.
Document ID
19780005340
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jackson, H. D.
(NASA Lewis Research Center Cleveland, OH, United States)
Fiala, J. L.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1977
Subject Category
Communications And Radar
Report/Patent Number
NASA-TM-73827
Meeting Information
Meeting: Symp. on Hermes (Comm. Technol. Satellite) its Performance and Appl.
Location: Ottawa, Ontario
Country: Canada
Start Date: November 29, 1977
End Date: December 1, 1977
Sponsors: NASA, The Royal Soc. of Canada, Canadian Dept. of Commun.
Accession Number
78N13283
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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