Multirate DSP

   

R. David Koilpillai received the B.Tech degree in Electrical Engineering from the Indian Institute of Technology Madras and the M.S. and Ph.D. degrees in Electrical Engineering from the California Institute of Technology, Pasadena, CA. In June 2002, David joined the EE faculty of IIT Madras. He is currently the Qualcomm Institute Chair Professor in EE and Dean (Planning). During the period April 2008 – December 2009, he served as the Co-Chair of the IITM special Task Force for setting up the new IIT at Hyderabad. David also served as Head, Central Electronics Centre of IITM during 20010-11. David’s technical areas of expertise include cellular and broadband wireless systems, and DSP techniques for wireless communications. He is the Faculty Coordinator of the IITMSAT Student Satellite initiative. During January – July 2007, David was on sabbatical from IITM and served as the Chief Scientist, Centre of Excellence in Wireless Technology (CEWiT), a public-private R&D initiative of the Govt. of India, and was responsible for launching the national project – Broadband Wireless Consortium of India (BWCI). Prior to joining IITM, David was at General Electric Corporate R&D for four years and Ericsson USA for eight years, where he held different technical and managerial positions. In 2000, he became the Director of the Ericsson’s Advanced Technologies and Research Department at RTP, North Carolina, developing GPRS/EDGE handset technology. David’s technical contributions at GE and Ericsson have resulted in 32 US patents, 10 Canadian Patents and 19 WIPO/European patents. In 1999 David received the “Ericsson Inventor of the Year” award, the highest technical recognition within Ericsson. In Nov 2003 David was elected Fellow of the Indian National Academy of Engineering. In 2014, David received the Srimathi Marti Annapurna Gurunath Award for Excellence in Teaching (Best Teacher Award of IIT Madras)David’s current technical activities are in the areas of Cellular evolution - 4G and 5G, Smart grid Communications, DSP for High Speed Coherent optical communications

COURSE LAYOUT:

Week 1  :  Introduction• Overview of Sampling and Reconstruction • Review Discrete-Time Systems, digital filters
Week 2  :  Oversampling techniques, DT processing of continuous time signals
Week 3  :  Fundamentals of Multi-rate Systems• Basic building blocks – Up sampling, down sampling, aliasing• Mathematical framework for sampling rate change
Week 4  :  Sampling rate change and filtering, fractional sampling rate change
Week 5 :  Interconnection of multirate DSP blocks, Multiplexer and Demultiplexer functionality, Polyphase decomposition, Noble Identities, efficient implementation of sampling rate conversion
Week 6  :  Applications of Multirate DSP - DFT-based Filterbanks, Interpolated FIR filter design, Cascaded-Integrator-Comb (CIC) filters, Transmultiplexer, Filterbank interpretation of Spectral analysis using DFT
Week 7  :  Two channel maximally decimated filter bank, Signal impairments - Aliasing, Magnitude distortion, Phase distortion, Aliasing cancellation
Week 8 : Allpass filters, properties, application in two channel filterbanks, Half-band filters, Power complementary filter pairs, Mth band filters, two channel perfection reconstruction filterbanks.
Week 9  :  Capacity of wireless channels, Waterfilling method, motivation for Multicarrier modulation
Week 10  :  Block transceivers with redundancy, Zero-padding, cyclic prefix, OFDM, extensions of OFDM incuding Filterbank Multicarrier (FBMC)
Week 11  :  Application of Multirate DSP – Delta Sigma A/D conversion
Week 12  :  Introduction to wavelets and M-channel perfect reconstruction filterbanks.

SUGGESTED READING MATERIALS:

Discrete-Time Signal Processing by Alan V. Oppenheim, Ronald W. Schafer, 3rd edition, 2016, Pearson, ISBN 978-93-325-3503-92. P. P. Vaidyanathan, “Multirate Systems and Filter Banks,” Pearson, 2004, ISBN 81-297-0685-73. Lin, Phoong & Vaidyanathan, “Filter Bank Transceivers for OFDM and DMT Systems, Cambridge University Press, 2011, ISBN 978-1-107-00273-94. Norbert Fliege, “Multirate digital signal processing: multirate systems, filter banks, wavelets,” Wiley, 1994, ISBN 978-04719397645. Frederic Harris, “Multirate Signal Processing for Communication Systems,” Prentice Hall, 2004, ISBN 978-0131465114.