Results 241 to 250 of about 25,846 (298)
Some of the next articles are maybe not open access.
Satellite systems for personal communications
Proceedings of the IEEE, 1997A number of industry groups are planning to construct satellite systems that will provide a personal communications service (PCS) (typically voice, data, and fax) to users over small, hand-held, cellular-type telephones. Some of these systems (e.g., Iridium and Globalstar) will be constructed using satellites in low Earth orbit.
openaire +1 more source
Issues in satellite personal communication systems
Wireless Networks, 1998In the paper various issues in personal satellite communications are addressed. Basic geostationary and non-geostationary satellite constellations are considered. The narrowband and wideband characterization of the mobile satellite channel and related system implications are discussed.
openaire +2 more sources
Satellite Communication Systems
2004Satellite-based communication has become a major facet of the telecommunication industry for two major reasons. First, it provides a means of broadcasting information to a large number of people simultaneously. Thus, satellite communication systems are an important ingredient in the implementation of a global communication infrastructure.
openaire +2 more sources
Satellite Communication Systems
1999* Chapter 1: Introduction * Chapter 2: Historical overview of satellite communications * Chapter 3: The satellite communications business * Chapter 4: Radio regulatory considerations relating to satellite communications systems * Chapter 5: Introduction to antennas * Chapter 6: Propagation considerations relating to satellite communications systems ...
openaire +2 more sources
Satellite Communications Systems
2009A new and updated edition of the highly successful comprehensive reference to satellite communications Since publication of the first edition, satellite ...
Maral, G, Bousquet, M, Sun, Z
openaire +3 more sources
Propagation considerations in satellite communication systems
Proceedings of the IEEE, 1990Radiowave propagation phenomena that affect the performance of satellite communication systems are concisely discussed to introduce some topics in propagation research related to satellite systems design and to illustrate related problems and uncertainties. The focus is on tropospheric effects. A summary of relevant propagation impairments is supplied,
Gert Brussaard, David V. Rogers
openaire +1 more source
Satellite communication systems
Physics Bulletin, 1965Within the last few months satellite communication systems have moved from the experimental phase of the Telstar and Relay satellites to the beginnings of commercial operation with the HS 303 (Early Bird) synchronous orbit satellite. When one considers the leap forward in technology, which the art of using satellites for world-wide communication itself
openaire +1 more source
ACE: A Satellite Communication System Emulator
20th AIAA International Communication Satellite Systems Conference and Exhibit, 2002ACE (a short for ASI CNIT Emulator) is a real time simulator of satellite communication systems based on IP packet transmissions. It has been implemented with the financial support of the Italian Space Agency (ASI) by CNIT, a consortium grouping all major technical universities in Italy. ACE is a “virtual satellite” able to operate with real traffic in
ALBERTENGO, GUIDO, PETROIANNI S.
openaire +2 more sources
System study on Gigabit satellite communications
Space Communications, 1998The objective of the Gigabit satellite is to provide the global high‐data‐rate communications network. The key technologies are the Ka‐band scanning sport beams, on‐board ATM switch, inter‐satellite laser link and the advanced beam control.
Ryoichi Imai +4 more
openaire +2 more sources

