Principles And Techniques Of Modern Radar Systems

By Prof. Amitabha Bhattacharya | IIT Kharagpur

Learners enrolled: 746

ABOUT THE COURSE :

The course “Principles and Techniques of Modern Radar Systems” covers a broad spectrum of the radar system design and analysis, starting with the basic concepts of microwave radar principles. It first develops a simplified model called “radar range equation” to introduce the basic concepts of the Radar. Then it introduces the simple CW Radar and shows it limitations and how that can be overcome with the help of frequency modulation. Then it introduces the concept of pulsed radar to increase the range of the radar detection, Thereafter the concept of MTI filtering to discriminate clutter in the Doppler domain is introduced and performance metric of MTI filtering is introduced. The drawback of MTI filtering in airborne radar is introduced next to highlight the concept of pulsed Doppler radar. Thereafter tracking radar is introduced alongwith monopulse concept to measure angular position of a target with very high accuracy. Then the detection theory is introduced by elaborate description of match filtering, ambiguity function, range resolution and Doppler resolution concepts. Thereafter pulse compression is introduced to increase the downrange resolution and synthetic aperture processing to increase cross range resolution. Thus the concept of the imaging radar is introduced. The statistical nature of target and environment parameter fluctuations is introduced next by introducing the concept of probability of false alarm and probability of detection. Swerling models are introduced and with their help the radar equation model is modified to make it more realistic. The modern trend of close sensing of targets with ground penetrating radar is next introduced and also the topic of radar tomography is introduced to give the course students a thrill of various modern civil, industrial and mining applications of radar technology. This trend of radar technology evolution from defence applications to civilian applications is emphasized at the end of the course.

INTENDED AUDIENCE: BE/B. Tech students belonging to Electronics Engineering/Electronics and Communication Engineering/ ME/M.Tech/MS students belonging to RF and Microwave Engineering PhD fellows having research areaof Radar system design

PREREQUISITES: Basic Knowledge of Electromagnetic Theory and Microwave Engineering is required. Following existing NPTEL courses are prerequisites: (a) Electromagnetic Theory (b) Basic Tools in Microwave engineering (c) Basic Building Blocks of Microwave Engineering (d) Analysis and Design Principles of Microwave Antennas

INDUSTRY SUPPORT: Radar Industry, Space Industry, Avionics industry, Defense Industry, Internal security Industry, Mining industry, Geo-exploration Industry.

Summary

Course Status :	Completed
Course Type :	Elective
Language for course content :
Duration :	12 weeks
Category :	Electrical, Electronics and Communications Engineering Communication and Signal Processing
Credit Points :	3
Level :	Undergraduate/Postgraduate
Start Date :	25 Jul 2022
End Date :	14 Oct 2022
Enrollment Ends :	08 Aug 2022
Exam Date :	29 Oct 2022 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Basic Principles: Radar equation, Radar Cross section Week 2: CW Radar, FMCW Radar Week 3: Pulsed Radar Principles Week 4: Clutter Analysis, MTI Improvement Factor, Pulsed Doppler Radar Week 5: Tracking Radar, Angular resolution, Monopulse Technique Week 6: Detection Theory: Match Filtering, Radar Ambiguity Function Week 7: Imaging Radar: Resolution Concept, Pulse Compression Week 8: Synthetic Aperture Processing, ISAR Imaging Week 9: Probability of false alarm and Detection, Modified Radar Range Equation with Swerling Models Week 10: Ground Penetrating Radar for close sensing Week 11: Radar Tomography and Radar based Microwave Imaging Week 12: Emerging and Modern Applications of Radar Principles

Books and references

1. Introduction to Radar Systems, M.I. Skolnik, 3rdEdition, Tata Mcgraw hill edition, 2001 2. Radar Systems Analysis and Design using MATLAB, B.R.Mahafza, 3rd Edition, CRC Press, 2013 3. Monopulse Principles and Techniques, S.M.sherman and D.K.Barton, 2ndEdition,Artech house, 2011 4. Fundamentals of Radar Signal Processing, M.A.Richards, TMH, 2005 5. Ground Penetrating Radar: Theory and Applications, Ed: H.M. Jolt, Elsevier, 2009 6. Microwave Imaging, M.Pastorino, John Wiley, 2010

Instructor bio

Prof. Amitabha Bhattacharya

IIT Kharagpur

Amitabha Bhattacharya was born in Kolkata, West Bengal in the year 1964. He received his B.Tech, (E&ECE) Degree from IIT Kharagpur in 1986, M.E. (E&TCE) from Jadavpur University in 1994 and Ph.D. (E. & ECE) from IIT Kharagpur in 1998.

He started his professional career in 1986 by joining as Junior Research Engineer in an ISRO- sponsored research project at IIT Kharagpur and continued thereafter as a Senior Research Assistant in a DRDO sponsored Research Project till 1991. In 1997, he joined SAMEER, Mumbai and then Defence Lab, Jodhpur as a Research Scientist. From 2000 onwards he joined teaching profession, first as an Assistant Professor in the Electronics and Instrument Department of Indian School of Mines, Dhanbad and then in 2007, in the faculty of Electronics and Electrical Communication Engineering Department of IIT Kharagpur in 2007. Presently he is working as an Associate Professor in the same Department and is involved in the teaching and research activities of the RF and Microwave Group of the E&ECE Department.

Dr. Bhattacharya‘s research interest is in the areas of Microwave Imaging, Microwave Propagation, High Power Microwaves and Microwave Stealth Technology. He has published 97 international research publications, two technical reports for Indian Defense, written a Tata McGraw Hill published text book on “Digital Communication” and co-authored a book chapter on “Modal Analysis of Reflector backed Hybrid Printed dipole antenna”. He has also developed 3 NPTEL MOOC online courses on microwave technology. He has been principal Investigator of 19 research projects and consultancies sponsored by agencies like DRDO, ISRO, Indian Army, BARC, MHRD, Wipro etc., has conducted 18 short term courses specially training scientists from HAL, ISRO, DRDO, Indian tri-services etc. in the areas of Electromagnetic Environments and Microwave Technologies. Dr. Bhattacharya has supervised six Ph.D. thesis and thirty five postgraduate theses. Presently he is supervising nine research students.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 29 October 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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