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B.TECH.
THEORY EXAMINATION (SEM–VIII) 2016-17
MICROWAVE ENGINEERING & MEASUREMENT
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Max. Marks : 100
Note: Be precise in your answer. In case of numerical problem assume data wherever not provided.
SECTION – A
10 x 2 = 20
- Explain the following:
- What is look angle?
- What is uplink design in satellite.
- Define G/T ratio for satellite.
- Define cloud effect in satellite link.
- Define term absorption in satellite communication.
- What is S/N ratios for FM video transmission.
- What is error control coding?
- Define attenuation in satellite link.
- What are the multiplexing technique in satellite link.
- What are the different type of satellite system.
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SECTION – B
Attempt any five parts of the following questions:
5 x 10 = 50
-
- What is basic transmission theory. Hence calculate the system temperature, C/N and G/T ratio.
- Explain the orbital mechanism for satellite communication.
- What is VSAT. Explain the different implementation method of VSAT.
- What are different LEO and Non-geostationary orbits used. Explain each of them in detail.
- How a satellite is launched? Hence explain the launching mechanism.
- What are the various interferences that may effect the satellite link performance?
- Describe the error detection correction mechanism in satellite link.
- Explain the principle of GPS position location. What are different GPS codes, discuss them.
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SECTION – C
Attempt any two parts of the following questions:
2 x 15 = 30
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- Explain the different multiple access mechanism like FDMA, TDMA, CDMA.
- Describe the pre emphasis and de emphasis circuit in satellite link
- Explain cyclic block codes and linear block codes.
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