Digital Signal Processing Notes – B.Tech 3rd Year Books

Check out the Complete note on Digital Signal Processing Pdf Notes Download We provide Digital Signal Processing study materials to B.Tech students free of cost and it can download easily and without registration need. You can get the Complete Notes on Digital Signal Processing in a Single Download Link for B.Tech Students. Digital Signal Processing (डिजिटल सिग्नल प्रोसेसिंग पीडीएफ नोट्स)  Study Materials (SLM), Important Questions List, Digital Signal Processing Syllabus, Digital Signal Processing Lecture Notes can be download in Pdf format.

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Digital Signal Processing Pdf Notes Download

Introduction to Digital Signal Processing: Discrete-time signals & sequences, Linear shift-invariant systems, Stability, and Causality, Linear constant coefficient difference equations, the Frequency domain representation of discrete-time signals and systems.

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List of Reference Books for Digital Signal Processing

  • John G Proakis and Manolakis, “Digital Signal Processing Principles, Algorithms and Applications”, Pearson, Fourth Edition, 2007.
  • S.Salivahanan, A. Vallavaraj, C. Gnanapriya, Digital Signal Processing, TMH/McGraw HillInternational, 2007
  • E.C. Ifeachor and B.W. Jervis, ” Digital signal processing – A practical approach”, Second edition, Pearson, 2002.
  • S.K. Mitra, Digital Signal Processing, A Computer Based approach, Tata Mc GrawHill, 1998.
  • P.P.Vaidyanathan, Multirate Systems & Filter Banks, Prentice-Hall, Englewood Cliffs, NJ, 1993.
  • Johny R. Johnson, Introduction to Digital Signal Processing, PHI, 2006.

Digital Signal Processing Syllabus- B.Tech Elective Subject

• To study DFT and its computation
• To study the design techniques for digital filters
• Study the finite word length effects in signal processing
• To study the non-parametric methods of power spectrum estimations
• To study the fundamentals of digital signal processors.

UNIT -I: Discrete Fourier Transform

DFT and its properties, Relation between DTFT and DFT, FFT computations using Decimation in time and Decimation in frequency algorithms, Overlap-add and save methods


Infinite Impulse Response Digital Filters Review of design of analog Butterworth and Chebyshev filters, Frequency transformation in the analog domain – Design of IIR digital filters using impulse invariance technique – Design of digital filters using bilinear transform – pre warping – Realization using direct, cascade and parallel forms.


Finite Impulse Response Digital Filters Symmetric and Ant symmetric FIR filters – Linear phase FIR filters – Design using Hamming, Henning and Blackman Windows – Frequency sampling method – Realization of FIR filters – Transversal, Linear phase and Polyphasestructures.

UNIT -IV: Finite Word Length Effects

Fixed point and floating-point number representations – Comparison – Truncation and Rounding errors – Quantization noise – derivation for quantization noise power – coefficient quantization error – Product quantization error –


Overflow error – Roundoff noise power – limit cycle oscillations due to product round off and overflow errors – signal scaling

UNIT -VI: Multirate Signal Processing

Introduction to Multirate signal processing-Decimation Interpolation-Polyphase implementation of FIR filters for interpolator and decimator -Multistage implementation of sampling rate conversion- Design of narrowband filters – Applications of Multirate signal processing.

• The ability to apply knowledge of mathematics, science, and engineering
• An ability to design and conduct experiments and interpret data
• An ability to design a system, component or process to meet desired needs within realistic constraints such as economic, environmental, social, political, ethical, health and safety, manufacturability, and sustainability
• The ability to function as part of a multi-disciplinary team

List of Digital Signal Processing Important Questions

  • Compute the DFT for the sequence {1, 2, 0, 0, 0, 2, 1, 1}. Using radix -2 DIF FFT and radix -2 DIT- FFT algorithm.
  •  Derive the equation to implement a butterfly structure In the DIT FFT algorithm.
  •  State and prove the time convolution property of Z-Transforms.
  • Obtain the impulse response of the digital filter to correspond to an analog filter with impulse response ha(t) = 0.5 e-2t and with a sampling rate of 1.0kHz using impulse invariant method.
  •  Compare bilinear transformation and impulse invariant mapping.
  • Explain the decimation and interpolation process with an example. Also, find the spectrum.
  • The sequence x(n)=[0,2,4,6,8] is interpolated using interpolation sequence bk =[1/2,1,1/2] and the interpolation factor is 2.find the interpolated sequence y(m).
  •  Describe the multiplier/adder unit of the TMS320c54xx processor with a neat block diagram.
  •  What are interrupts? What are the classes of interrupts available in the TMS320C5xx processor?

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