EFFECT FROM THE ACADEMIC YEAR 2013 - 2014
EC 414
MULTI RATE SIGNAL PROCESSING
(Elective - I)
Instruction 4 Periods per week
Duration of University Examination 3 Hours
University Examination 75 Marks
Sessional 25 Marks
UNIT-I
Review of fundamentals of Multirate Systems: Decimation by a integer factor D, Interpolation by a integer factor I, Sampling rate conversion by a rational factor I/D, Inter connection of building blocks, Polyphase representation, Multi stage implementation of sampling-rate conversion, Applications of Multirate systems.
UNIT-II
Multirate Filter banks: Digital filter banks, Uniform DFT filter banks, Polyphase implementation of Uniform filter banks.
Nyquist filters: Lth -band filters, half band filters, design of Linear-phase Lth band FIR filters.
UNIT-III
Quadrature - Mirror Filter banks : Two Channel QMF structure and analysis, Alias free filter bank, Alias - free realization, Alias - free FIR QMF bank, Alias - free IIR QMF bank, perfect reconstruction (PR) two - channel FIR filter bank, Alias - free L - Channel filter bank.
UNIT-IV
Polyphase Representation. Condition for Perfect Reconstruction. Cosine - Modulated L -channel filter banks, Multilevel filter banks - filter with equal and unequal passband widths.
UNIT-V
Introduction to wavelet theory, wavelet transform, Definition and Properties, Introduction to multi dimensional Multirate signal processing.
Suggested Reading:
1. Mitra SK “Digital Signal Processing. A Computer Approach,”
TMH, 3/e, 2006.
2. Vaidyanathan PP “Multirate Systems and Filter Banks,” Pearson Education.2008.
3. Emmanuel C, Ifeachor and Barrie W. Jervis, “ Digital Signal Processing: A Practical Approach,” 2 /e, Pearson Education, 2004.
4. Bruce W. Suter, “Multirate and Wavelet Signal Processing,”
Volume 8, Academic Press,1998.
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