Rajiv Gandhi Proudyogiki Vishwavidyalaya 2011-7th Sem B.E Electronics & Communication Engineering (ester) , e,,(Electronics & Communication EnggBranch) TELEVISION AND RADAR ENGINEERING - Question

Attempt 1 ques. from every unit. All ques. carry equal marks.
Unit-I
1.(a) explain the scanning process in Basic Television System. What is Interlace scanning? define its Advantages over simple scanning.
(b) What is Vestigial Side band Transmission? Why is it used for Transmission of TV picture signal?
OR
2.(a) What is Composite video signal? Using circuit diagram discuss how sync pulses are found from composite video signal.
(b) explain in detail the working principle of television camera pics-ups.
Unit-II
3.(a) Draw the detailed Diagram of trinitron color Picture Tube. define its Working.
(b) explain in Detail antenna requirement for television system. define different antenna used for transmission and reception.
OR
4.(a) Why (G-Y) Difference signal is not chosen for transmission?
(b) Draw the Block Schematic for TV receiver. discuss its Working.
Unit-III
5.(a) provide the Merits of Digital TV Technology and Draw the basic Diagram of fully Digital TV.
(b) discuss the application and working of cable Television(CATV).
OR
6.(a) What is Close Circuit Television and High Definition Television syatem.
(b) discuss the working of Digital Television Receivers with suitable diagram.
Unit-IV
7.(a) Derive the radar range formula and explain the factors affecting the option of frequency of operation of radar system.
(b) What is Doppler's Effect ? Derive the formula for Doppler's shift and hence discuss the working of FM-CW radar.
OR
8.(a) compute the maximum range of a radar system which operates at three cm with a peak pulse power of 500 kW. If its minimum receivable power is 10^-13 W. The capture area of its antenna is 5m^2 and the target cross-section area of target is 20 m^2.
(b) define the role of Delay Line Canceller in MTI radar. Comment on the Disadvantages of MTI radar and how it can be overcome.
Unit-V
9.(a) Draw the diagram of Basic Radar Receiver and discuss its working. Also explain the Effect of Noise.
(b) discuss the subsequent -
(i) Synthetic aperture radar
(ii) Air Surveillance Radar(ASR)
OR
10.(a) With the help of suitable diagram discuss the kind A and PPI display system.
(b) discuss the subsequent -
(i) Duplexer
(ii) Bi static Radar.

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Earning:   Approval pending.