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Advanced Communications Technology Satellite (ACTS): Four-Year System PerformanceThe Advanced Communications Technology Satellite (ACTS) was conceived at the National Aeronautics and Space Administration (NASA) in the late 1970's as a follow-on program to ATS and CTS to continue NASA's long history of satellite communications projects. The ACTS project set the stage for the C-band satellites that started the industry, and later the ACTS project established the use of Ku-band for video distribution and direct-to-home broadcasting. ACTS, launched in September 1993 from the space shuttle, created a revolution in satellite system architecture by using digital communications techniques employing key technologies such as a fast hopping multibeam antenna, an on-board baseband processor, a wide-band microwave switch matrix, adaptive rain fade compensation, and the use of 900 MHz transponders operating at Ka-band frequencies. This paper describes the lessons learned in each of the key ACTS technology areas, as well as in the propagation investigations.
Document ID
19990062742
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Acosta, Roberto J. (NASA Lewis Research Center Cleveland, OH United States)
Bauer, Robert (NASA Lewis Research Center Cleveland, OH United States)
Krawczyk, Richard J. (NASA Lewis Research Center Cleveland, OH United States)
Reinhart, Richard C. (NASA Lewis Research Center Cleveland, OH United States)
Zernic, Michael J. (NASA Lewis Research Center Cleveland, OH United States)
Gargione, Frank (Lockheed Martin Missiles and Space Newtown, PA United States)
Date Acquired
August 19, 2013
Publication Date
February 1, 1999
Publication Information
Publication: IEEE Journal on Selected Areas in Communications
Volume: 17
Issue: 2
ISSN: 0733-8716
Subject Category
Communications and Radar
Distribution Limits
Public
Copyright
Other