RADAR ENGINEERING (18EC823)

RADAR ENGINEERING

Course Code : 18EC823
CIE Marks :40
Lecture Hours/Week : 03 
SEE Marks : 60
Total Number of Lecture Hours 2 40 (08 Hrs / Module) 
Exam Hours :03
CREDITS — 03

Course Learning Objectives: This course will enable students to:

• Understand the Radar fundamentals and analyze the radar signals.
• Understand various technologies involved inthe designo fradar transmitters and receivers.
• Learn various radars like MTI, Doppler and tracking radars and their comparison

Module-1

Basics of Radar: Introduction, Maximum Unambiguous Range, Radar Waveforms, Definitions with respect to pulse wave form-PRF, PRI, Duty Cycle, Peak Transmitter Power, Average transmitter Power. Simple form of the Radar Equation, Radar Block Diagram and Operation, Radar Frequencies, Applications of Radar, The Origins of Radar, Illustrative Problems. (Chapter 1 of Text) L1, L2,L3

Module-2

The Radar Equation: Prediction of Range Performance, Detection of signal in Noise, Minimum Detectable Signal, Receiver Noise, SNR, Modified Radar Range Equation, Envelope Detector - False Alarm Time and Probability, Probability of Detection, Radar Cross Section of Targets: simple targets sphere, cone-sphere, Transmitter Power, PRF and Range Arnbiguities, System Losses (qualitative treatment), Illustrative Problems. (Chapter 2 of Text, Except 2.4, 2.6, 2.8 & 2.11) L1,L2,L3

Module-3

MTI and Pulse Doppler Radar: Introduction, Principle, Doppler Frequency Shift, Simple CW Radar, Sweep to Sweep subtraction and Delay Line Canceler, MTI Radar with— Power Amplifier Transmitter, Delay Line Cancelers Frequency Response of Single Delay— Line Canceler, Blind Speeds, Clutter Attenuation, MTI Improvement Factor, N- Pulse Delay-Line Canceler, Digital MTI Processing—Blind phases, I and Q Channels, Digital MTI Doppler signal processor, Moving Target Detector- Original MTD. (Chapter 3: 3.1, 3.2, 3.5, 3.6 of Text) L1,L2,L3

Module-4

Tracking Radar:Tracking with Radar- Types of Tracking Radar Systems, Monopulse Tracking- Amplitude Comparison Monopulse (one-and two-coordinates), Phase Comparison Monopulse. Sequential Lobing, Conical Scan Tracking, Block Diagram of Conical Scan Tracking Radar, Tracking in Range, Comparison of Trackers. (Chapter4: 4.1, 4.2, 4.3 of Text), L1,L2,L3

Module-5

The Radar Antenna : Functions of The Radar Antenna, Antenna Parameters, Reflector Antennas and Electronically Steered Phase darrayAntennas. (Chapter 9:9.1,9.29.4, 9.5 of Text) Radar Receiver: The Radar Receiver, Receiver Noise Figure, Super Heterodyne Receiver, Duplexers and Receivers Protectors, Radar Displays. (Chapter 11 of Text), L1, L2,L3

Course Outcomes: At the end of the course, students will be able to:

1. Describe the radar fundamentals.
2. Analyze the radar signals.
3. Explain the working principle of pulse Doppler radars, their applications and limitations.
4. Describe the working of various radar transmitters and receivers.
5. Analyze the range parameters of pulse radar system which affect the system performance.

Question paper pattern:

• Examination will be conducted for 100 marks with question paper containing 10 full questions, each of 20 marks.
• Each fiJll question can have a maximum of 4 sub questions.
• There will be 2 full questions from each module covering all the topics of the module.
• Students will have to answer 5 full questions, selecting one full question from each module.
• The total marks will be proportionally reduced to 60 marks as SEE marks is 60.

TEXTBOOK:

Introduction to Radar Systems- Merrill I Skolink, 3e, TMH, 2001

REFERENCE BOOKS:

1. Radar Principles, Technology, Applications—ByronEdde, Pearson Education, 2004.
2. Radar Principles—Peebles. Jr, P.Z. Wiley. New York, 1998.
3. Principles of Modern Radar: Basic Principles—Mark A. Rkhards, James A. Scheer, Mlliam A. HoIm. Yesdee, 2013