WITH EFFECT FROM THE ACADEMIC YEAR 2012 - 2013

EE 351

DIGITAL SIGNAL PROCESSING

Instruction                                             4              Periods per week

Duration of University Examination     3              Hours

University Examination                         75            Marks

Sessional                                                25            Marks

UNIT-I

Introduction to Digital Signal Processing: Classification of Signals & Systems. Linear shift invariant systems, stability and causality, Sampling of Continuous signals -Signal Reconstruction, quantizing & encoding, linear constant co-efficient difference equations, properties of discrete system-linearity.

UNIT-II

Fourier Analysis: Distinguishing Fourier transform of discrete singular & discrete Fourier transform, Discrete Fourier series, Phase and amplitude spectra, Properties of Discrete Fourier Transform, Linear Convolution of sequence using DFT, Frequency domain representation of discrete time system DTFT and DFT , Computation of DFT. Fast Fourier transform: Radix- 2 decimation in time and decimation in frequency FFT algorithms, Inverse FFT.

UNIT-III

Z- Transform: Application of Z- Transforms for solution of difference equations of digital filters system function -stability criterion, Realization of filters -direct, canonic. Cascade and parallel form, linear phase realization.

UNIT-IV

IIR Filters: Design of Butterworth Chebyshev filters, IIR filter design by impulse invariant bilinear transformation, impulse invariance method, step invariance method

UNIT-V

FIR Filters: Characteristics of FIR Digital Filters. Frequency response, comparison of FIR, IIR filters -Window techniques, Design of these filters,

using -Rectangular, Hamming, Bartlet, Kaiser windows, Architecture and features of TMS 320F/2047 and ADSP signal processing chips, Applications of DSP.

Suggested Reading:

1. 1.P. VenkataRamani, M.Bhaskar, “Digital Signal Processor; Architecture, Programming & Application “, TataMcGrawHill-2004

1. 2.Avatar Singh, S.Srinivasan, “Digital Signal Processing" , Thomson Publication, 2004.

1. 3.Lafley, "DSP Processing. fundamentals. architecture & feature". S Chand Publishers & Co. 2000

1. 4.Jackson L.B. "Digital Filters and Signal Processing". Second edition, Kluwer Academic Publishers. 1989

1. 5.Oppenheim A V, and Schafer R. W. "Digital Signal Processin", Prentice Hall Inc. 1975.