Digital Signal Processing
UNIT- I
Introduction:
Introduction to Digital Signal Processing:
- Discrete Time Signals &Sequences
- Linear Shift
- Invariant Systems
- Stability, and Causality
- Linear Constant Coefficient Difference Equations,
- Frequency Domain Representation of Discrete Time Signals and Systems.
UNIT- II
Discrete Fourier series:
- DFS Representation of Periodic Sequences
- Properties of Discrete
- Fourier Series
Discrete Fourier Transforms:
- Properties of DFT
- Linear Convolution of Sequences using DFT
- Computation of DFT
- Relation between DTFT, DFS, DFT and Z-Transform.
Fast Fourier Transforms:
- Fast Fourier Transforms (FFT)-Radix-2
- Decimation-in-Time and
- Decimation-in-Frequency FFT Algorithms
- Inverse FFT, and FFT with General Radix N.
UNIT- III
Realization of Digital Filters:
- Applications of Z-Transforms
- Solution of Difference Equations of Digital Filters
- System Function, Stability Criterion
- Frequency Response of Stable Systems,
- Realization of Digital Filters - Direct, Canonical, Cascade and Parallel Forms.
UNIT- IV
IIR Digital Filters:
- Analog filter approximations-Butterworth and Chebyshev
- Design of IIR Digital Filters from
(i). Analog Filters
(ii). Impulse Invariant Techniques
(iii). Bilinear Transformation Method
UNIT- V
FIR Digital Filters:
- Characteristics of FIR Digital Filters
- Frequency Response
Design of FIR Filters:
- Fourier Method
- Digital Filters using Window Techniques
- Frequency Sampling Technique, and
- Comparison of IIR &FIR filters.
- Multi rate signal processing
UNIT 1 👇👇
UNIT 2 👇👇
UNIT 5 👇👇
DSP Important topics
UNIT- I
Introduction:
Discrete Time Signals & Sequences,
Stability, and Causality
Linear Constant Coefficient Difference Equations
UNIT- II
Discrete Fourier series:
Discrete Fourier Transforms: Properties of DFT,
Linear Convolution of Sequences using DFT,
Computation of DFT
Overlap add, overlap save techniques to compute DFT
Fast Fourier Transforms:
Fast Fourier Transforms (FFT)-Radix-2, Decimation-in-Time and Decimation-in-Frequency
FFT Algorithms,
Inverse FFT
UNIT- III
Realization of Digital Filters:
Solution of Difference Equations of Digital Filters,
Stability Criterion,
Realization of Digital Filters – Direct, Canonical, Cascade and Parallel Forms.
UNIT- IV
IIR Digital Filters:
Analog filter approximations–Butterworth and Chebyshev,
Comparison of both
Step and Impulse Invariant Techniques,
Bilinear Transformation Method.
Warping effect
Comparison of Analog and digital Filter
UNIT- V
FIR Digital Filters:
Design of FIR Filters: Fourier Method
Digital Filters using Window Techniques,
Comparison of IIR &FIR filters
