Digital Signal Processing (IIT Delhi)

IIT Delhi , Prof.S.C. Dutta Roy

Lecture - 12 Z Transform


Lecture Description

Lecture Series on Digital Signal Processing by Prof.S. C Dutta Roy, Department of Electrical Engineering, IIT Delhi. For More details on NPTEL visit

Course Description

Introduction – Digital Systems – Characterization Description,Testing of Digital Syst – LTI Systems Step & Impulse Responses,Convolution – Inverse Systems,Stability,FIR & IIR-FIR & IIR; Recursive & Non Recursive – Discrete Time Fourier Transform – DFT (Contd.) Introduction to Z Transform – Discrete Time Systems in the Frequency Domain – Simple Digital Filters – All Pass Filters,Com.Filters – Linear Phase filters,Complementary Transfer Fn – Test for Stability using All Pass Functions – Digital Processing of Continuous Time Signals

Problem Solving Session: FT, DFT,& Z Transforms – Analog Filter Design – LPF Design – Transformations – analog frequency Transformation – Problem Solving Session on Discrete Time System – Digital Filter Structures – IIR Realizations – All Pass Realizations – Lattice Synthesis (Contd.) – FIR Lattice Synthesis and Digital Filter Design – IIR Design by Bilinear Transformation – Digital to Digital Frequency Transformation – FIR Digital Filter Design by Windowing & Frequency Sampling – Solving Problems on DSP Structures – FIR Design by Frequency Sampling

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