What is satellite link design?
What is satellite link design?
A satellite link is defined as an Earth station – satellite – Earth station connection. The Earth station – satellite segment is called the uplink. The satellite – Earth station segment is called the downlink.
What are the links in satellite communication?
In the context of satellite communications, a downlink (DL) is the link from a satellite to a ground station. Pertaining to cellular networks, the radio downlink is the transmission path from a cell site to the cell phone.
What are the factors on which link design of satellite depends?
It has been experienced that the factors, which influence system design in satellite communication are the choice of frequency band, atmospheric propagation effects and multiple access technique.
What is the difference between C N and G T ratio?
[CN0] is the carrier to noise density ratio. [GT] is the earth station receiver G/T ratio and units are dB/K.
What is G T in satellite communication?
G/T is the figure of merit for a satellite system. G is the Receive antenna gain. T is the system noise temperature. System noise temperature = antenna noise temperature + Receiver noise temperature (LNA)
What are the two types of communication satellite?
Two satellite types are used for North American television and radio: Direct broadcast satellite (DBS), and Fixed Service Satellite (FSS).
What are the elements of satellite communication?
Satellite communication has two main components: the ground segment, which consists of fixed or mobile transmission, reception, and ancillary equipment, and the space segment, which primarily is the satellite itself.
What are types of links in network?
Types of Links
| Link Type | Remote Node and Kind of Communication |
|---|---|
| SNA3270P | 3270 printer through VTAM |
| TCPASCII | ASCII printer or plotter within a TCP/IP network |
| TCPNJE | NJE system within a TCP/IP network |
| TN3270E | Link to a TCP/IP attached 3270 printer |
What are network links?
A link (or edge) of a network (or graph) is one of the connections between the nodes (or vertices) of the network. Links can be directed, meaning they point from one node to the next, as illustrated by the arrows in the first figure below.
What parameters should be considered before designing a satellite link?
The important parameters that influence the design of a satellite communication link include: (i) choice of operating frequency; (ii) propagation considerations; (iii) noise considerations; and (iv) interference-related problems.
What is the difference between SNR and CNR?
SNR versus CNR Contrast-to-noise ratio (CNR) is a measure used to determine image quality. CNR is similar to the metric signal-to-noise ratio (SNR), but subtracts a term before taking the ratio. Signal-to-noise ratio (SNR or S/N) compares the level of a desired signal to the level of background noise.