Signal Processing Techniques And Its Applications

By Prof. Shyamal Kumar Das Mandal   |   IIT Kharagpur
Learners enrolled: 1241
Digital Signal Processing (DSP) is concerned with the representation, transformation and manipulation of signals on a computer. After half a century advances, DSP has become an important field, and has penetrated a wide range of application systems, such as consumer electronics, digital communications, medical imaging and so on. With the dramatic increase of the processing capability of signal processing microprocessors, it is the expectation that the importance and role of DSP is to accelerate and expand.


INTENDED AUDIENCE: UG and PG student of Electronics and Electrical Communication Engg, Electrical Engineering and Computer Science and Engineering along with Industry working in the area of Image and speech processing


Course Status : Completed
Course Type : Elective
Duration : 12 weeks
Category :
  • Electrical, Electronics and Communications Engineering
  • Communication and Signal Processing
Credit Points : 3
Level : Undergraduate/Postgraduate
Start Date : 24 Jan 2022
End Date : 15 Apr 2022
Enrollment Ends : 07 Feb 2022
Exam Date : 24 Apr 2022 IST

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

Page Visits

Course layout

Week 1: Concept of frequency in continuous-time and Discrete-time signal
Week 2: Concept of frequency in continuous-time and Discrete-time signal
Week 3: Discrete time system
Week 4: Linear Time-Invariant Systems
Week 5: Recursive and Non-recursive discrete time system and its application
Week 6: Realization of Linear Time-Invariant Systems
Week 7: Discrete Time Fourier Transform(DTFT)
Week 8: Discrete Fourier Transform(DFT) and Fast Fourier Transform(FFT)
Week 9: Short Time Fourier Transform(STFT) and Its Application
Week 10: Use of FFT in Linear Filtering and correlation, Discrete cosine transform (DCT) and its Application
Week 11: Introduction to Digital Filter design (FIR and IIR)
Week 12: Homomorphic Signal Processing and Multirate digital signal processing

Books and references

  1. J. G. Proakis, D. G. Manolakis: “Digital Signal Processing Principles, Algorithms and Application”, Prentice-Hall, 2007.
  2. A.V.Openhem, R.W Schafer and J. R. Buck, “Discrete time signal processing” Prentice Hall
  3. Noise reduction in speech application, Edited by Gillian M. Davis, CRC Press

Instructor bio

Prof. Shyamal Kumar Das Mandal

IIT Kharagpur
Dr. S K. Das Mandal was born on October 1975; He received the B.E degree in Electronics and Telecommunication engineering in 1998 and Ph.D degree in 2007 from Jadavpur University, India and currently working in Indian institute of Technology Kharagpur as an Assistant Professor. His current research interests include automatic speech recognition, speech synthesis, and computer assisted spoken language acquisition.

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: 24 April 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.


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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