Big or small, future satellites must be able to communicate efficiently with Earth-based stations. Historically, NASA has relied onradiofrequency (RF) communication, but RF is reaching its limit as demand for more capacity increases. To overcome this obstacle, NASA scientists have been developing a...
In 1961, NASA gave Hughes a contract to build the Syncom (synchronous communication) series of satellites. In July 1963, Rosen and his colleagues watched as Syncom 2 soared into space and navigated into a (roughly) geosynchronous orbit. President Kennedy used the new system to have a ...
Satellite Communication System: How Does It Work? Communication satellites are similar to space mirrors that let us bounce communications such as internet data, television, and radio from one side of the world to the other. It consists of three steps that might assist in explaining how it works...
In addition to the ionosphere, satellites can also communicate with each other using a space satellite. These satellites act as mirrors, reflecting signals towards the receiving satellite. They also amplify and re-transmit signals, which can be weakened due to dissipation and absorption in the atmos...
Satellites circling Mars could help send information back to Earth over an interplanetary Internet. You can talk to almost anyone, in any corner of the world, almost instantly because of theInternetand other advances in electronic communication. Scientists and space explorers now are looking for a ...
All geostationary satellites have a name like ‘Galaxy 18’ or ‘AMC-4’ and they also have a longitude position. Longitude refers to those imaginary long lines that travel down the Earth for global mapping. There are 360 degrees of longitude readings for Earth. If you know the longitude of...
The idea behind an antenna in a radio transmitter is to launch the radio waves into space. In a receiver, the idea is to pick up as much of the transmitter's power as possible and supply it to the tuner. For satellites that are millions of miles away,NASAuseshuge dish antennasup to ...
It has been debated that communication using fiber optics is more reliable than satellites and is less prone to errors. Yet, the terrestrial nature of the services from fiber internet providers means they can become damaged as cables can be cut accidentally or damaged through ...
Satellite internet is a type of internet connection that utilizes communication satellites stationed in space to transmit and receive data signals. Unlike traditional broadband connections that rely on physical cables, satellite internet bypasses the need for wired infrastructure by beaming data to and fro...
How can interference-rejection receivers increase the capacity of CDMA multi-beam satellite communication systems - Gaudenzi, Gianneti, et al. - 1996 () Citation Context ...recent work on extending multiuser detection into satellite systems. In particular, the extensive work of de Gaudenzi et al....