DIGITAL SIGNAL PROCESSING Beginner Guide

DFT and its properties, Relation between DTFT and DFT, FFT computations using Decimation in time and Decimation in frequency algorithms, Overlap-add and save methods
UNIT II INFINITE IMPULSE RESPONSE DIGITAL FILTERS 9
Review of design of analog Butterworth and Chebyshev filters, Frequency transformation in the analog domain – Design of IIR digital filters using impulse invariance technique – Design of digital filters using bilinear transform – pre warping – Realization using direct, cascade, and parallel forms.
UNIT III FINITE IMPULSE RESPONSE DIGITAL FILTERS 9
Symmetric and Antisymmetric FIR filters – Linear phase FIR filters – Design using Hamming, Hanning, and Blackman Windows – Frequency sampling method – Realization of FIR filters – Transversal, Linear phase and Polyphase structures.
UNIT IV FINITE WORD LENGTH AFFECTS 9
Fixed point and floating-point number representations – Comparison – Truncation and Rounding errors – Quantization noise – derivation for quantization noise power – coefficient quantization error – Product quantization error – Overflow error – Roundoff noise power – limit cycle oscillations due to product roundoff and overflow errors – signal scaling
UNIT V MULTIRATE SIGNAL PROCESSING 9
Introduction to Multirate signal processing-Decimation-Interpolation-Polyphase implementation of FIR filters for interpolator and decimator -Multistage implementation of sampling rate conversion- Design of narrow band filters – Applications of Multirate signal processing.

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