This Paper is currently included in the syllabus of Electronics and Communication Engineering (ECE) in seventh sem(4th year-First sem). An elective paper.
CS/B.TECH/(ECE-New)/SEM-7/EC-704A/2013-14
2013
RADAR ENGINEERING
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
(Multiple Choice Type Question)
1. Choose the correct alternatives for any ten of the following:
10 x 1 = 10
i) For a pulse Radar, if the time of return of echo is 200 micro second, the range of the target will be
a) 20 km b) 30 km
c) 499 km d) infinity.
ii) The radial velocity of a target is 500 km/hr. If the wavelength of the Radar signal is 1 cm, the Doppler frequency shift will be
a) 27.7 kHz b) 39.7 kHz
c) 75.7 kHz d) 77 Hz.
iii) The frequency range of V-band is
a) 40 to 75 MHz b) 40 to 75 GHz
c) 3 to 30 GHz d) 3 to 30 MHz.
iv) If the pulse width is 200 ns, the range resolution of a pulse Radar will be
a) 24 km b) 16 m
c) 4 m d) 30 m.
