Geostationary satellites carry a majority of the international telecommunications traffic not carried by transoceanic cable. However, because the radio path links to and from geostationary satellites total at least 70,000 km and because of inherent on-board spacecraft power limitations, earth stations used in conjunction with geostationary satellites are usually large and expensive. This limits their installation to areas with a well-developed industrial and economic infrastructure. This reality helps perpetuate a chicken egg dilemma for the developing countries and isolated regions. Economic integration with the developed world requires being 'networked'. But for many developing entities, even the initial price of entry exceeds their modes...
A major goal of the Digital Systems Technology Branch at the NASA Lewis Research Center is to identi...
The global navigation satellite systems (GNSSs) are increasingly suffering from interferences, such ...
Currently the geostationary type of satellite is the only one used to provide commercial mobile-sate...
Communication and information exchange play a decisive role in progress and social development. Howe...
There are only a few ways that a low Earth orbit (LEO) satellite can communicate with Earth without ...
Capital expenditures and indoor challenges are two of the main obstacles toward equal access positio...
Capital expenditures and indoor challenges are two of the main obstacles toward equal access positio...
Small satellites (small sats) are creating new and disruptive opportunities in today’s space industr...
With the continued growth in geosynchronous satellite communications transponders today, why could a...
Low Earth Orbit (LEO) communications satellite systems are emerging as attractive alternatives to th...
Two networking issues of communications systems with medium earth orbit (MEO) satellites, namely net...
GLOBALSTAR is a satellite-based mobile communications system that is interoperable with the current ...
Low Earth orbit (LEO) communication networks are the near future of the communication services. What...
Within the next few years the emergence of satellite-based personal communication networks operating...
Opportunities in communication satellite technology are identified and defined. Factors that tend to...
A major goal of the Digital Systems Technology Branch at the NASA Lewis Research Center is to identi...
The global navigation satellite systems (GNSSs) are increasingly suffering from interferences, such ...
Currently the geostationary type of satellite is the only one used to provide commercial mobile-sate...
Communication and information exchange play a decisive role in progress and social development. Howe...
There are only a few ways that a low Earth orbit (LEO) satellite can communicate with Earth without ...
Capital expenditures and indoor challenges are two of the main obstacles toward equal access positio...
Capital expenditures and indoor challenges are two of the main obstacles toward equal access positio...
Small satellites (small sats) are creating new and disruptive opportunities in today’s space industr...
With the continued growth in geosynchronous satellite communications transponders today, why could a...
Low Earth Orbit (LEO) communications satellite systems are emerging as attractive alternatives to th...
Two networking issues of communications systems with medium earth orbit (MEO) satellites, namely net...
GLOBALSTAR is a satellite-based mobile communications system that is interoperable with the current ...
Low Earth orbit (LEO) communication networks are the near future of the communication services. What...
Within the next few years the emergence of satellite-based personal communication networks operating...
Opportunities in communication satellite technology are identified and defined. Factors that tend to...
A major goal of the Digital Systems Technology Branch at the NASA Lewis Research Center is to identi...
The global navigation satellite systems (GNSSs) are increasingly suffering from interferences, such ...
Currently the geostationary type of satellite is the only one used to provide commercial mobile-sate...