Download AKTU B-Tech 8th Sem 2015-16 EEC 035 Introduction To Radar Systems Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2015-16 EEC 035 Introduction To Radar Systems Question Paper

_ Printed Pages: 3 EEC-035
(Following Paper ID and Roll No. to be ?lled in your
' Answer Books)
Roll NoJ I _ E I
!
B.TECH.
Theory Examination (Semester-Vlll) 2015-16
INTRODUCTION TO RADAR SYSTEMS
Time : 3 Hours ? Max. Marks : 100
Note :- Attempt all questions. All questions carry equal marks.
S?ctlon-A
l. Attempt any four parts :- (lOXZ = 20)
(a) Explain basic principle of radar system with suitable
diagram.
(b) De?ne pulse width, pulse repetition time, rest time and
duty cycle with their fornmlae.
(0) Explain the term Blind speed.
(d) How MTI radar is different from other radar systems.
(e) What do you understand by second time around signal?
(1) P.T.O.
10663572095225
1/

2.
(f)
(h)
(1)
? *(i)
Attempt any ?ve questions.
(a)
(b)
(c)
(d)
(e)
(f)
Describe the concept of Doppler frequency shi?.
Explain minimmn detectable. signal.
Calculate average power when peak power is 200 kW,
pulse width is 2 us and rest time is 20003.
Describe the terms clutter and ambiguity.
What do you mean by false alarm?
Sec?on-B
[5x 10=50]
Explain MTI radar with suitable block diagram. Also give
its applications.
Explain conical scan and sequential lobbing in detail.
Discuss limitations of tracking accuracy. 1
Explain various antenna parameters,
Describe Automatic Tracking with Surveillance radars in
detail.
Whatd?youmderstandbyTracldngwithRada?Ewlain
mono pulse tracking.
(2)
106/653309/5225
(h)
Attempt any two questions
3.
Write short ~note on radar clutter and accuracy of Radar
nmsurements.
Derive exprssion for probability of Else alarm. Dismguish
it from probability of miss.
Sec?on-C
_ [2X 15=3 0]
Derive the expression for simple form of radar range
equation. Radar is operating at 1.5c1n with peak pulse
power of 300 kW. The capture area of antenna is 51112
and minimum detectable signal is 10?12 W. Calculate the
maximum range Ofradar if radar cross section of target
is 10 m2. ' '
Explain various system losses in detail.
Write short note on:
i. Low angle tracking
ii. Delay line canceller
(3)
106/655/209/5225