PAPER FOR 2ND SESSTIONAL
EXAM
SUBJECT-
SATELLITE COMMUNICATION
CODE-EC-021
Q1. Explain FDMA
Technique
Q 2.Explain TDMA
Technique
Q 3. Explain CDMA
Technique
Q4. Explain SDMA
Technique
Q.5 What are the
factors that affect the uplink and down
link design
Q.6 Explain VSAT
Q.7 the semimajor and
minor axis of an elliptical satellite orbit are 20,000 km and 1600 km
respectively.Determine the apogee and perigee distances
Q.8 Derive general link equation. Find outexpression
for C/N and G/T ratio.
Q.9 Discuss the antenna requirements for large and
small earth statiion
Q. 10 What are
the various interferences that may affect the satellite link performances?
Explain
Q.11 Two
amplifiers are connected in cascades having a gain of 20 db each. If the noise
temperature is 200k , determine the
overall gain
Q.12 The EURP of 240W Transponder is 57 dbW. Calculate
the approximate gain of the antenna if the transponder is switched to 120W.
calculate the new EIRP,assuming that the
same antenna is used
Q.13 what is mean by look angles? Explain them with
reference to a geostationary satellite
and the earth station
Q.14 Satellite-1 In An Elliptical Orbit has The orbit semi
major axis equal to 18000km and satellite-2 an elliptical orbit has semi major axis equal
to 24000 km . Determine the Relationship between their orbital periods.
Q. 15 with the aid of
a sketch. Explain what is meant by each of angle
Inclination ,
argument of pergee, right ascension of the ascending node
Q.16 Explain briefly what is meant by sun transit outage?
Q.17 Differentiate
between TDMA and FDMA
Q.18 Explain Noise Temperature
Q.19.Define
satellite switched TDMA?
Q20. Define EIRP and Find the Julian Date for 13 hours UT
on 18 Dec 2000
Q . 21 Define Satellite Communication and Satellite
Q.22 Explain Kepler’s
L:aws
Q.23 Explain Types of Attenuation
Q .24 Explain Types
Depolarization
Q.25 Explain Absorption Effect on Propagation in
Communication link Design
Q.26 Explain steps
for design in Satellite link for
Communication
Q 27Define
a)Ascending and Descending nodes
b) mean anomaly and true anomaly
Q.28 Derive the
Expression of power of Satellite link design for reciver
Q.29. calculate time in days, hours, minutes and
seconds for epoch day 324.95616765
Q.30 A
geostationary satellite is located 900 W.
Calculate the azimuth angle for an Earth station antenna located at latitude 350 W and longitude 1000 W.
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