EC2312 Digital Signal Processing - SUBJECT CATALOG

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SYLLABUS:

EC2312           DIGITAL SIGNAL PROCESSING                                                              L T P C

3 1 0 4

To introduce the concept of analyzing discrete time signals & systems in the time and frequency domain.

OBJECTIVES

·          To classify signals and systems & their mathematical representation.

·          To analyse the discrete time systems.

·          To study various transformation techniques & their computation.

·          To study about filters and their design for digital implementation.

·          To study about a programmable digital signal processor & quantization effects.

UNIT I INTRODUCTION       9

Classification of  systems:  Continuous, discrete, linear,  causal,  stable, dynamic, recursive, time variance; classification of signals: continuous and discrete, energy and power; mathematical representation of signals; spectral density; sampling techniques, quantization, quantization error, Nyquist rate, aliasing effect. Digital signal representation.

UNIT II            DISCRETE TIME SYSTEM ANALYSIS      9

Z-transform and its properties, inverse z-transforms; difference equation – Solution by    z-transform, application to discrete systems - Stability analysis, frequency response – Convolution – Fourier transform of discrete sequence – Discrete Fourier series.

UNIT III           DISCRETE FOURIER TRANSFORM & COMPUTATION            9

DFT properties, magnitude and phase representation - Computation of DFT using FFT algorithm – DIT & DIF - FFT using radix 2 – Butterfly structure.

UNIT IV           DESIGN OF DIGITAL FILTERS      9

FIR & IIR filter realization – Parallel & cascade forms. FIR design: Windowing Techniques – Need and choice of windows – Linear phase characteristics. IIR design: Analog filter design - Butterworth and Chebyshev approximations; digital design using impulse invariant and bilinear transformation - Warping, prewarping - Frequency transformation.

UNIT V            DIGITAL SIGNAL PROCESSORS  9

Introduction – Architecture – Features – Addressing Formats – Functional modes - Introduction to

Commercial Processors

L = 45  T = 15  TOTAL = 60 PERIODS

TEXT BOOKS

1. J.G. Proakis and D.G. Manolakis, ‘Digital Signal Processing Principles, Algorithms and  Applications’, Pearson Education, New Delhi, 2003 / PHI.

2. S.K. Mitra, ‘Digital Signal Processing – A Computer Based Approach’, Tata McGraw

Hill, New Delhi, 2001.