Communications technologyThe technologies for optimized, i.e., state of the art, operation of satellite-based communications systems are surveyed. Features of spaceborne active repeater systems, low-noise signal amplifiers, power amplifiers, and high frequency switches are described. Design features and capabilities of various satellite antenna systems are discussed, including multiple beam, shaped reflector shaped beam, offset reflector multiple beam, and mm-wave and laser antenna systems. Attitude control systems used with the antenna systems are explored, along with multiplexers, filters, and power generation, conditioning and amplification systems. The operational significance and techniques for exploiting channel bandwidth, baseband and modulation technologies are described. Finally, interconnectivity among communications satellites by means of RF and laser links is examined, as are the roles to be played by the Space Station and future large space antenna systems.
Document ID
19870043619
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Cuccia, C. Louis (NASA Headquarters Washington, DC United States)
Sivo, Joseph (NASA Headquarters Washington, DC United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking