STUPIDSID
1 (a)
Explain different Satellite services. What is footprint? What is the difference between polar orbit and geostationary orbit?
7 M
1 (b)
Calculate the radius of a circular orbit for which the period is one day.
7 M
2 (a)
An earth station is located at latitude 30°S and longitude 130°E.
Calculate the antenna-look angles for a satellite at 156°E.
7 M
2 (b)
Determine the angle of tilt required for a polar mount used with an earth station at latitude 49° north. Assume a spherical earth of mean radius 6371 km, and ignore earth-station altitude.
7 M
2 (c)
An antenna has a noise temperature of 35 K and is matched into a receiver which has a noise temperature of 100 K. Calculate (i) the noise
power density and (ii) the noise power for a bandwidth of 36 MHz.
7 M
3 (a)
Write a short note on Equipment reliability and space qualification for
Satellite Communication.
7 M
3 (b)
Draw and explain TT&C.
7 M
3 (c)
Explain the block diagram of Satellite Transponder. Also explain the
frequency reuse technique for Transponder.
7 M
3 (d)
Explain Cross-Polarization Discrimination.
7 M
4 (a)
How the error control done in Digital DBS-TV? Explain it.
7 M
4 (b)
Explain Orbit Consideration with respect to Non-Geostationary Satellite Orbit (NGSO)
7 M
4 (c)
What is VSAT ? List the application of VSAT. Also Draw and explain the architecture of VSAT system.
7 M
4 (d)
Write short notes on Master Control Station required for Direct Broadcast Satellite Television (DBS-TV) system.
7 M
5 (a)
Explain how to compute uplink and downlink C/N ratios for a typical satellite link.
7 M
5 (b)
Write differences between:
(i) Attitude control and orbital control.
(ii) East west and north south station keeping maneuvers.
(i) Attitude control and orbital control.
(ii) East west and north south station keeping maneuvers.
7 M
5 (c)
Explain the spade system.
7 M
5 (d)
Explain GPS receiver operation in short.
7 M
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