EC2312 DIGITAL SIGNAL PROCESSING–Syllabus–Regulation 2008

Anna University Syllabus

EC2312 DIGITAL SIGNAL PROCESSING


Subject Code : EC2312

Subject Name : DIGITAL SIGNAL PROCESSING

L – 3

T- 1

P-0

C –4

Semester : 5th Sem

Year : 3rd yr

Department : EEE


Aim

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

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 toCommercial Processors


TEXT BOOKS

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.