Title :
Transmission of digital HDTV through the NASA Communications Network
Author :
Beakley, G.W. ; Kohn, E.S. ; Van Pelt, J.L.
Author_Institution :
StellaCom Inc., Rosslyn, VA, USA
Abstract :
A series of experiments conducted at the Johnson Space Center (JSC) in November 1991, to evaluate the quality of HDTV that was digitized, compressed to 45 Mb/s, and transmitted through the NASA Communications Network (NASCOM), is described. The experiments included back-to-back bench tests of the Alcatel Telettra 45 Mb/s high-definition coder/decoder (codec) with motion compensation, followed by data transmission through the NASA space shuttle Orbiter communication simulator, and, finally, transmission through the NASA Tracking and Data Relay Scientific System (TDRSS). The quality of the resultant HDTV signal was excellent
Keywords :
digital communication systems; high definition television; telecommunication networks; television broadcasting; 45 Mbit/s; AD 1991 11; Alcatel Telettra; HDTV signal; JSC; Johnson Space Center; NASA Communications Network; NASCOM; TDRSS; Tracking and Data Relay Scientific System; bench tests; codec; communication simulator; data transmission; digital HDTV transmission; motion compensation; picture quality; space shuttle Orbiter; Codecs; Communication networks; Data communication; Decoding; HDTV; Motion compensation; NASA; Space shuttles; System testing; Tracking;
Conference_Titel :
Global Telecommunications Conference, 1992. Conference Record., GLOBECOM '92. Communication for Global Users., IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0608-2
DOI :
10.1109/GLOCOM.1992.276357
