What is satellite link equation?

(A)  A fundamental relation in antenna theory is gain & area of an antenna are related by G = 4π Ae / λ2  Substituting above equation in equation (A) gives Pr = [Pt Gt Gr/ (4 πR / λ )2 ]watts  This expression is known as link equation & essential in calculation of power received in any radio link.

Which parameter should be calculated for designing a satellite link?

The parameters of the link are defined as: pt = transmitted power (watts); pr = received power (watts); gt = transmit antenna gain; gr = receive antenna gain; and r = path distance (meters).

How do you design a satellite communication link?

Link Design Process 1. Define Requirements for each link 2. Design Each Link – Select frequency – Select modulation & coding – Apply antenna size & beam width constraints – Estimate atmospheric, rain attenuation – Estimate received noise, interference power – Calculate required antenna gain & transmitter power 3. Size the Payload

Is the equation for satellite uplink the same as downlink?

The equation is same as the satellite uplink with a difference that we use the abbreviation “D” everywhere instead of “U” to denote the downlink phenomena. Here, all the losses that are present around earth stations. In the above equation we have not included the signal bandwidth B.

How to calculate the size of a satellite link?

Define Requirements for each link 2. Design Each Link – Select frequency – Select modulation & coding – Apply antenna size & beam width constraints – Estimate atmospheric, rain attenuation – Estimate received noise, interference power – Calculate required antenna gain & transmitter power 3. Size the Payload

How is the communication link between a satellite and the earth station ( es ) exposed?

The communication link between a satellite and the Earth Station (ES) is exposed to a lot of impairments such as noise, rain and atmospheric attenuations. It is also prone to loss such as those resulting from antenna misalignment and polarization.