Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Philip Y. Sohn"'
Autor:
Alan L. Stern, William F. Cashman, Philip Y. Sohn, Joseph L. Balombin, David L. Wright, Richard T. Gedney
Publikováno v:
Acta Astronautica. 26:813-825
The NASA Advanced Communications Technology Satellite (ACTS) provides high risk technologies having the potential to dramatically enhance the capabilities of the satellite communications industry. This experimental satellite, which will be launched b
Publikováno v:
IEEE Journal on Selected Areas in Communications. 10:401-417
The feasibility of a personal communications network using portable terminals that can provide 4.8 kb/s voice communications to a hub station via Ka-band geosynchronous satellite has been investigated. Tradeoffs are examined so that the combined syst
Publikováno v:
Proceedings of the IEEE. 78:1165-1175
A description of the advanced communications technology satellite (ACTS) system is given with special emphasis on the communication characteristics. Potential satellite communications scenarios, including future operational ACTS-like satellite system
Publikováno v:
14th International Communication Satellite Systems Conference and Exhibit.
A possible operational system scenario for providing satellite communications services to the future aviation community was analyzed. The system concept relies on a Ka-band (20/30 GHz) satellite that utilizes multibeam antenna (MBA) technology. The a
Publikováno v:
14th International Communication Satellite Systems Conference and Exhibit.
The feasibility of personal communications networks that can provide 4.8-kbps voice communications between portable terminals and a hub station via a Ka-band geosynchronous satellite has been investigated. Tradeoffs are examined so that the combined
Publikováno v:
Space Programs and Technologies Conference.
Telecommunications, Navigation, and Information Management (TNIM) services are vital to accomplish the ambitious goals of the Space Exploration Initiative (SEI). A technology assessment is provided for four alternative lunar and Mars operational TNIM