Cec332 Advanced Digital signal processing

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SYllabuS

UNIT I INTRODUCTION 

Classification of systems: Continuous, discrete, linear, causal, stability, 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.

UNIT II DISCRETE TIME SYSTEM ANALYSIS 

Z-transform and its properties, inverse z-transforms; difference equation – Solution by z￾transform, application to discrete systems - Stability analysis, frequency response – Convolution – Discrete Time Fourier transform , magnitude and phase representation.

UNIT III DISCRETE FOURIER TRANSFORM & COMPUTATION 

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

structure.

UNIT IV DESIGN OF DIGITAL FILTERS 

FIR & IIR filter realization – Parallel & cascade forms. FIR design: Windowing Techniques – Need and choice of windows – Linear phase characteristics. Analog filter design – Butterworth and Chebyshev approximations; IIR Filters, digital design using impulse

invariant and bilinear transformation Warping, pre warping.

UNIT V DIGITAL SIGNAL PROCESSORS

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

Introduction to Commercial DS Processors.