7EC2-DIGITAL SIGNAL PROCESSING |
Units: I-SAMPLING |
Discrete time processing of Continuous-time signals, continuous-time processing
of discrete-time signals, changing the sampling rate using discrete-time processing.
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Units: II-TRANSFORM ANALYSIS OF LTI SYSTEMS |
Introduction, The frequency response of LTI
systems, System functions for systems characterized by LCCD (Linear Constant Coefficient Difference)
equations, All-pass system, Minimum-Phase systems, Linear systems with linear phase. |
Units: III-STRUCTURES FOR DISCRETE-TIME SYSTEMS |
Block diagram and signal flow graph
representation of LCCD (LCCD – Linear Constant Coefficient Difference) equations, Basic structures for
IIR and FIR systems, Transposed forms.
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Units: IV-FILTER DESIGN TECHNIQUES |
Introduction, Analog filter Design: Butterworth &
Chebyshev.IIR filter design by impulse invariance & Bilinear transformation. Design of FIR filters by
Windowing: Rectangular, Hanning, Hamming & Kaiser.
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Units: V |
The Discrete Fourier transform (DFT), Properties of the DFT, Linear Convolution using DFT.
Efficient computation of the DFT: Decimation–in-Time and Decimation-in frequency FFT Algorithms.
Processing of speech signals: Vocoders, linear predictive coders.
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