EE8591 – NOTES & QP
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EE8591 – 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 ztransform, 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.