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To design a satellite communication link using a Ku-band geostationary satellite in a DBS-TV system.

To apply MATLAB programming to find the feasibility of the satellite link budget.

To compare the value of the calculated link budget with the produced  Matlab  programming.

4 To discuss the rain attenuation effect to the designed link budget.

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The first step in designing a satellite network is performance of a satellite link budget analysis.

A link budget actually involves is a relatively simple addition and subtraction of gains and losses within a radio frequency (RF) link.

To arrive at an accurate answer, factors such as the uplink power amplifier gain, noise factors and etc.

In satellite communication systems, there are two types of power calculations. Those are transmitting power and receiving power calculations.

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The absence of the visible clouds across the entire sky dome and this condition can lead to a condition of clear sky irradiance

Clear sky condition can be identified and classified by measuring the solar irradiance of the sky and based on this value measured the sky condition can be divided into a clear sky, cloudy and partially cloudy.

Clear-sky day is parametric and not meteorological since the common meteorological procedure of quantifying the fraction of the cloud-covered sky is carried out by indicating the quantity of portions of sky (eighths or tenths) that are covered

This condition of clear sky is the best condition in transmitting the data in the satellite communication system as there will be less losses effected to the data transmitted due to less present of interference in the data transmitting and receiving path.

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Specification of the given systems for Uplink and Downlink

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For uplink AND DOWNLINK Clear sky condition

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Comparison between manual calculation and MATLAB simulation – Clear Sky

Manual Calculation MATLAB Transmitted Power  29.2 dB 29.1991 dB Noise Power  -124.29 dB -124.2864 dB Power Received  -94.29 dB -94.2864 dB Downlink (C/N) D 17.223 dB 17.22 dB Receiving antenna gain 45.302 dB 45.3049 dB

Satellite Communication System

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