DSP - Notes for PC

The app is designed for quick learning, revisions at the time of internal and university examination. This app covers all the five units of IT6502-Digital signal processing subject for students studying in B.E. Computer Science Engineering and B.Tech –Information Technology department under Regulation 2013 in Anna University syllabus. This app will enhance the easy way of learning along with their regular class understanding. The app covers the following topics
UNIT I – SIGNALS AND SYTEMS
Classification of Basic signals – Continuous time and Discrete time signals
Signal Classification – Continuous time and Discrete Time signals
Classification of Systems – Continuous time and Discrete time system
Baseband sampling
Properties of Z-Transform
Z-Transform Pairs
Inverse Z-Transform using ROC
Convolution using Z-Transform
Analysis of discrete time LTI system using Z-Transform
Part A Question and Answers

UNIT II - FREQUENCY TRANSFORMATIONS
Relationship between DTFT-DFT, DFT – FFT and ZT - DFT
Properties of Discrete Fourier Transform
Fast Fourier Transform – Radix 2 Algorithm
(a) Decimation-in-Time FFT Algorithm
(b) Decimation-in-Frequency FFT Algorithm
Comparison of DIT-FFT/DIF–FFT Butterfly diagram
DFT problem using direct DFT, matrix DFT, DIT and DIF-FFT method
Comparison of Computational Complexity for DFT Vs FFT
Basics for solving 8–pt problem based on DIT / DIF using FFT / IFFT algorithm
Use of FFT in Linear Filtering – Overlap Save and Overlap Add Method
Part A Question and Answers

UNIT III – IIR FILTER DESIGN
Derivation of IIR Filter Transfer function
Structures of IIR Filter
Analog Filter Design
IIR filter design using Impulse invariance method
IIR filter using bilinear transformation method.
Conversion of H(s) into H(z) using Impulse Invariant method and Bilinear Method
Design procedure of IIR Digital Butterworth filter
Derive the order and cutoff frequency of digital IIR Butterworth filter
Design of Low Pass Butterworth filter using Bilinear method
Design of Low Pass Butterworth filter using Impulse method
Design of High Pass Butterworth filter using Bilinear method
Frequency Transformation in Analog Domain & Digital Domain
Part A Question and Answers

UNIT IV – FIR FILTER DESIGN
Transfer Function of Finite Impulse Response Filter
Structures of FIR
Basics in Causal and Non causal Sequences
Design of Linear Phase FIR Filter
(a) Design of Linear Phase FIR filter – Symmetry Condition
(b) Design of Linear Phase FIR filter – Asymmetry Condition
General Shapes of Windows & Window Functions for FIR filter design
FIR filter for Non causal specification (n ≠ α) and Causal specification (n ≠ 0)
Design Procedure for FIR filter using Window method
FIR Filter Design using Frequency Sampling Method
PART A – Question and Answers
UNIT V – FINITE WORD LENGTH EFFECTS IN DIGITAL FILTERS
Binary fixed point and floating point number representations
Quantization Noise-Truncation and Rounding error Quantization Noise power/ Signal to Quantization Noise Ratio Types of Quantization Error -
(a)Input Quantization Error
(b)Product Quantization Error (c) Coefficient Quantization Error
Limit Cycle Oscillations
(a)Zero input limit cycle oscillation / Dead band (b)Overflow limit cycle oscillation
Steady State Noise Power or Variance
Signal Scaling
Part A Question and Answers

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