EC2302 DIGITAL SIGNAL PROCESSING Syllabus for ECE 5th Semester - Anna University

EC2302                              DIGITAL SIGNAL PROCESSING                              L T P C
3 1 0 4

To study the signal processing methods and processors.

·    To study DFT and its computation
·    To study the design techniques for digital filters
·    To study the finite word length effects in signal processing
·    To study the non-parametric methods of power spectrum estimations
·    To study the fundamentals of digital signal processors.

UNIT I         DISCRETE FOURIER TRANSFORM                                                            9
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 analogue Butterworth and Chebyshev Filters, Frequency transformation in analogue 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 Blackmann Windows Frequency sampling method Realization of FIR filters Transversal, Linear phase and Polyphase structures.

UNIT IV         FINITE WORD LENGTH EFFECTS                                                           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.
L: 45, T: 15, TOTAL= 60 PERIODS

1.  John G Proakis and Manolakis, Digital Signal Processing Principles, Algorithms and Applications, Pearson, Fourth Edition, 2007.
2.  S.Salivahanan,    A.    Vallavaraj,     C.    Gnanapriya,     Digital    Signal    Processing, TMH/McGraw Hill International, 2007

1.  E.C.     Ifeachor     and     B.W.     Jervis,     “     Digital     signal      processing     –     A
practicalapproach,Second edition, Pearson, 2002.
2.  S.K Mitra Digita Signa Processing  Compute Base approach Tata
Mc GrawHill, 1998.
3.  P.P.Vaidyanathan, Multirate Systems & Filter Banks, Prentice Hall, Englewood cliffs,  NJ, 1993.
4.  Johny R. Johnson, Introduction to Digital Signal Processing, PHI, 2006.

By Vinoth
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