Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 8th Sem Old 181103 Radar And Navigational Aids Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 181103 Date: 26/11/2018
Subject Name: Radar & Navigational Aids
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Define the following parameters:
i) False alarm ii) Unambiguous range
iii) Radar Cross section iv) Minimum detectable signal
07
(b) Enlist the important applications of Radar? Also describe Frequency
band used for various applications.
07
Q.2 (a) Enlist different types of displays used in Radar? Explain any two in
detail.
07
(b) Prove that the amplitude of the direction finding loop antenna is
given by 2 ?? ?? ?? ?? ?? ( ?? ?? ?? ?? ).
07
OR
(b) Prove that clutter power is inversely proportional to the square of the
range.
07
Q.3 (a) Describe Second-time-around echoes effect in Radar with necessary
waveforms.
07
(b) Draw and explain block diagram of conical-scan tracking radar. 07
OR
Q.3 (a) What is Doppler effect? Draw the block diagram of Pulse Doppler
Radar. Explain function of each block in detail.
07
(b) What do you understand by blind speed? How to eliminate it. 07
Q.4 (a) Explain MTI radar operation with the help of block diagram. How
moving objects are recognized on an A Scope?
07
(b) Explain the principle of RADAR with the help of block diagram.
Explain radar range equation in terms of receiver noise figure,
bandwidth and other related parameters.
07
OR
Q.4 (a) Draw neat block diagram of FMCW radar and enlist its distinguished
features.
07
(b) Explain Global Positioning system. 07
FirstRanker.com - FirstRanker's Choice
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 181103 Date: 26/11/2018
Subject Name: Radar & Navigational Aids
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Define the following parameters:
i) False alarm ii) Unambiguous range
iii) Radar Cross section iv) Minimum detectable signal
07
(b) Enlist the important applications of Radar? Also describe Frequency
band used for various applications.
07
Q.2 (a) Enlist different types of displays used in Radar? Explain any two in
detail.
07
(b) Prove that the amplitude of the direction finding loop antenna is
given by 2 ?? ?? ?? ?? ?? ( ?? ?? ?? ?? ).
07
OR
(b) Prove that clutter power is inversely proportional to the square of the
range.
07
Q.3 (a) Describe Second-time-around echoes effect in Radar with necessary
waveforms.
07
(b) Draw and explain block diagram of conical-scan tracking radar. 07
OR
Q.3 (a) What is Doppler effect? Draw the block diagram of Pulse Doppler
Radar. Explain function of each block in detail.
07
(b) What do you understand by blind speed? How to eliminate it. 07
Q.4 (a) Explain MTI radar operation with the help of block diagram. How
moving objects are recognized on an A Scope?
07
(b) Explain the principle of RADAR with the help of block diagram.
Explain radar range equation in terms of receiver noise figure,
bandwidth and other related parameters.
07
OR
Q.4 (a) Draw neat block diagram of FMCW radar and enlist its distinguished
features.
07
(b) Explain Global Positioning system. 07
2
Q.5 (a) What is V.O.R? Explain its principle with necessary waveforms and
operation of the VOR ground equipment.
07
(b) Explain working of Microwave landing system (MLS). Also
mention its advantage and disadvantage.
07
OR
Q.5 (a) Explain the Distance Measuring Equipment in detail.
07
(b) Explain Principle of Hyperbolic Navigation. Compare the Operation
of LORAN-A and LORAN ?C.
07
*************
FirstRanker.com - FirstRanker's Choice
This post was last modified on 20 February 2020