ELECTRONICS AND COMMUNICATION ENGINEERING


DTSP



Unit -I      DISCRETE FOURIER TRANSFORMS 

Introduction & Properties of DFT – Linear & Circular Convolution Methods, FFT algorithms – Radix-2 FFT algorithms – Decimation in Time – Decimation in Frequency algorithms –Use of FFT algorithms in Linear Filtering and correlation. 



Unit -II     IIR FILTER DESIGN 

Structures of IIR – Analog filter design – Discrete time IIR filter from analog filter – IIR filter design by using Approximation of derivatives – Impulse Invariance – Bilinear transformation, (LPF, HPF, BPF, BRF) filter design using frequency translation.



Unit -III  FIR FILTER DESIGN

Structures of FIR – Linear phase FIR filter - Filter design using windowing techniques (Rectangular Window, Hamming Window, Hanning Window), Frequency sampling techniques.


 

Unit -IV  FINITE WORD LENGTH EFFECTS & DSP PROCESSOR

Finite word length effects: Quantization- Truncation and Rounding errors - Quantization noise-coefficient quantization error – Product quantization error - Overflow error – limit cycle oscillations, scaling. Introduction to DSP architecture – Harvard architecture - Dedicated MAC unit - Multiple ALUs, Advanced addressing modes, Pipelining, Overview of instruction setC54X. 



Unit -V  MULTIRATE SIGNAL PROCESSING& APPLICATIONS 

Multirate signal processing: Decimation, Interpolation, Sampling rate conversion by a rational factor – Application-Sub band coding, Musical Sound Processing, Digital Audio sampling rate conversion, Oversampling A/D &D/A.