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{{Short description|Indian American academic (born 1954)}}
{{Use dmy dates|date=August 2018}}
{{Use Indian English|date=August 2018}}
{{Infobox scientist
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| name = P. P. Vaidyanathan
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| fields = [[Digital signal processing]]
| workplaces = [[California Institute of Technology]] (Caltech)
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| alma_mater = [[University of California, Santa Barbara]] (PhD) <br /> [[University College of Science, Technology and Agriculture|Science College, University of Calcutta]] (BTech, MTech)
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| academic_advisors = Sanjit K. Mitra
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'''Palghat P. Vaidyanathan''' (born in [[Kolkata]], [[India]] on 16 October 1954) is the Kiyo and Eiko Tomiyasu Professor of Electrical Engineering at the [[California Institute of Technology]], [[Pasadena, California]], USA, where he teaches and leads research in the area of [[signal processing]], especially [[digital signal processing]] (DSP), and its applications. He has authored five books, and authored or coauthored close to six hundred papers in various [[IEEE]] journals and conferences. Prof. Vaidyanathan received his B.Tech. and M.Tech. degrees from the Institute of Radiophysics and Electronics, [[University College of Science, Technology and Agriculture|Science College campus]] of [[University of Kolkata]], and a Ph.D. degree in Electrical Engineering from [[University of California Santa Barbara]] in 1982.

Prof. Vaidyanathan's pioneering contributions include the development of the theory and structures for filter banks,<ref>
* P. P. Vaidyanathan, "Multirate digital filters, filter banks, polyphase networks, and applications: A tutorial," Proceedings of the IEEE, vol. 78, pp. 56-92, Jan. 1990. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=52200.
* R. D. Koilpillai, and P. P. Vaidyanathan, "Cosine-modulated FIR filter banks satisfying perfect reconstruction," IEEE Transactions on Signal Processing, vol. 40, pp. 770-783, April 1992. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=127951
* S-M. Phoong, C. W. Kim, P. P. Vaidyanathan, and R. Ansari, "A new class of two-channel biorthogonal filter banks and wavelet bases," IEEE Trans. Signal Proc., vol. SP-43, pp. 649--665, March 1995. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=370620
* P. P. Vaidyanathan, "Theory and design of M-channel maximally decimated quadrature mirror filters with arbitrary $M,$ having perfect reconstruction property," IEEE Trans. on Acoustics, Speech and Signal Processing, vol. 35, pp. 476-492, April 1987. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1165155</ref> especially perfect reconstruction and orthonormal filter banks, which find applications in data compression standards such as [[JPEG]] and [[MPEG]], and in [[digital communications]]. One of his early contributions is the development of the theory of robust [[digital filter]] structures directly in discrete time without recourse to classical circuit theoretical models.<ref>
* P. P. Vaidyanathan, S. K. Mitra and Y. Neuvo, "A new approach to the realization of low sensitivity IIR digital filters," IEEE Trans. on Acoustics, Speech and Signal Processing, vol. ASSP-34, pp. 350-361, April 1986. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1164829
* P. P. Vaidyanathan and T. Q. Nguyen, "Eigenfilters: a new approach to least squares FIR filter design and applications including Nyquist filters," IEEE Trans. on Circuits and Systems, vol. 34, pp. 11-23, January 1987. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1086033</ref> He has also contributed widely in other areas of signal processing including [[image processing]],<ref>M. Mese and P. P. Vaidyanathan, "Look Up Table (LUT) for inverse halftoning," IEEE Trans. Image Processing, pp. 1566--1578, Oct. 2001. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=951541</ref> genomic signal processing,<ref>P. P. Vaidyanathan, "Genomics and proteomics: a signal processor's tour," IEEE Circuits and Systems Magazine, vol. 4, no. 4, pp. 6--29, Dec. 2004. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1371584</ref> sampling theory,<ref>P. P. Vaidyanathan, "Generalizations of the sampling theorem: seven decades after Nyquist," IEEE Trans. Circuits and Systems-1, pp. 1094--1109, Sept. 2001. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=948437
</ref> optimal transceivers,<ref>
* Ching-Chih Weng, Chun-Yang Chen, and P. P. Vaidyanathan, "MIMO transceivers with decision feedback and bit loading: theory and optimization", IEEE Transactions on Signal Processing, March 2010. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5272297
* Chih-Hao Liu and P. P. Vaidyanathan, "MMSE DFE Transceiver Design over Slowly Time-varying MIMO Channels Using ST-GTD", IEEE Transactions on Signal Processing, vol. 59, pp. 277--289, Jan. 2011. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5601795</ref> radar signal processing,<ref>
* Chun-Yang Chen and P. P. Vaidyanathan, "MIMO radar space-time adaptive processing using prolate spheroidal wave functions", IEEE Transactions on Signal Processing, Feb, 2008. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4400830
* Chun-Yang Chen and P. P. Vaidyanathan, "MIMO Radar Waveform Optimization with Prior Information of the Extended Target and Clutter", IEEE Transactions on Signal Processing, vol. 57, no. 9, pp. 3533-3544, Sept. 2009. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4840496</ref> and [[sensor array]] processing.<ref>
* Piya Pal and P. P. Vaidyanathan, "Nested arrays: a novel approach to array processing with enhanced degrees of freedom," IEEE Transactions on Signal Processing, vol. 58, pp. 4167--4181, August 2010. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5456168
* P. P. Vaidyanathan and Piya Pal, "Sparse sensing with coprime samplers and arrays", ''IEEE Transactions on Signal Processing'', vol. 59, no. 2, pp. 573--586, Feb. 2011. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5609222</ref> He has also explored the role of [[number theory]] in signal processing applications.<ref>
* P. P. Vaidyanathan, "Ramanujan sums in the context of signal processing: Part I: fundamentals," IEEE Trans. on Signal Proc., vol. 62, no. 16, pp. 4145--4157, Aug., 2014. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6839014
* P. P. Vaidyanathan, "Ramanujan sums in the context of signal processing: Part II: FIR representations and applications," IEEE Trans. on Signal Proc., vol. 62, no. 16, pp. 4158--4172, Aug., 2014. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6839030&tag=1
* S. V. Tenneti and P. P. Vaidyanathan, "Nested Periodic Matrices and Dictionaries: New Signal Representations for Period Estimation," IEEE Trans. on Signal Proc., vol. 63, no. 14, pp. 3736--3750, July 2015. https://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7109930&tag=1</ref>

==Awards and honors==
* IEEE Jack S. Kilby Signal Processing Medal, 2024 <ref>{{Cite web|url=https://www.eas.caltech.edu/news/pp-vaidyanathan-receives-ieee-jack-s-kilby-signal-processing-medal|title = P.P. Vaidyanathan Receives IEEE Jack S. Kilby Signal Processing Medal| date=28 November 2023 }}</ref>
* Fellow of the [[Indian National Academy of Engineering]], 2021 <ref>{{Cite web|url=https://eas.caltech.edu/news/1461|title = Caltech Division of Engineering and Applied Science; Professor Vaidyanathan Elected to the National Academy of Engineering}}</ref>
* EURASIP Athanasios Papoulis Award, 2021 <ref>{{Cite web|url=https://eas.caltech.edu/news/1400|title = P. P. Vaidyanathan Receives Athanasios Papoulis Award}}</ref>
* Member of the U.S. National Academy of Engineering.<ref>{{Cite web|url=http://eas.caltech.edu/news/1174|title = Caltech Division of Engineering and Applied Science | News | Professor Vaidyanathan Elected to the National Academy of Engineering}}</ref>
* [[IEEE Signal Processing Society]] Award, 2016.<ref>{{Cite web|url=http://www.caltech.edu/news/caltech-electrical-engineering-professor-wins-ieee-signal-processing-societys-top-award-53511|title = Caltech Electrical Engineering Professor Wins IEEE Signal Processing Society's Top Award|date = 6 January 2017}}</ref>
* Northrop Grumman prize for Excellence in Teaching at [[California Institute of Technology]], 2016.
* [[IEEE Gustav Robert Kirchhoff Award]], 2016.<ref>{{Cite web|url=http://www.ieee.org/about/awards/tfas/kirchhoff.html|archive-url=https://archive.today/20130415034837/http://www.ieee.org/about/awards/tfas/kirchhoff.html|url-status=dead|archive-date=15 April 2013|title = Corporate Awards|website = [[Institute of Electrical and Electronics Engineers]] (IEEE)}}</ref>
* Education Award of the IEEE Signal Processing Society, 2011.<ref>{{Cite web|url=http://www.signalprocessingsociety.org/awards-fellows/awardspage/education-award/|title=Awards & Submit Award Nomination|date=3 January 2016}}</ref>
* Eliahu Jury Seminar Award, [[University of Miami]], 2007.
* Technical Achievement Award of the IEEE Signal Processing Society, 2001.<ref>{{Cite web|url=http://www.signalprocessingsociety.org/awards-fellows/awardspage/techachv/|title = Awards & Submit Award Nomination|date = 3 January 2016}}</ref>
* Golden jubilee medal, IEEE Circuits and Systems Society, 2000.
* Distinguished lecturer, IEEE Signal Processing Society, 1996–97.<ref>{{Cite web|url=http://www.signalprocessingsociety.org/community/lectures/|title = Attend an Event}}</ref>
* Awards for excellence in teaching, [[California Institute of Technology]] (multiple times).
* Best paper awards from IEEE Signal Processing Society (multiple times).
* F. E. Terman Award of the ASEE, sponsored by the Hewlett-Packard company, 1995.<ref>{{Cite web|url=http://www.asee.org/member-resources/awards/full-list-of-awards/professional-and-technical-division-awards|title = Professional and Technical Division Awards American Society for Engineering Education}}</ref>
* Fellow of the IEEE, 1991.<ref>{{Cite web|url=https://www.ieee.org/membership/fellows/index.html|title=About the IEEE Fellow Program|website=[[Institute of Electrical and Electronics Engineers]] (IEEE)}}</ref>
* [[Presidential Young Investigator Award]], [[National Science Foundation]], 1986.

== Books ==

# P. P. Vaidyanathan, Multirate systems and filter banks, [[Prentice Hall]], Englewood Cliffs, 1993.<ref name="PPbookSearch">{{cite web| url=https://www.amazon.com/s?k=P.P.+Vaidyanathan&i=stripbooks-intl-ship&crid=2RJ5Q40EZIL31&sprefix=p.p.+vaidyanathan%2Cstripbooks-intl-ship%2C171&ref=nb_sb_noss | title=1-16 of 35 results for "P.P. Vaidyanathan" | website=Amazon | access-date=2024-01-16}}</ref>
# P. P. Vaidyanathan, The Theory of Linear Prediction, Morgan & Claypool Publishers, 2008.<ref name="PPbookSearch" />
# P. P. Vaidyanathan, S.-M Phoong, and Y.-P Lin, Signal Processing and Optimization for Transceiver Systems, Cambridge University Press, 2010.<ref name="PPbookSearch" />
# Y.-P Lin, S.-M. Phoong, and P. P. Vaidyanathan, [[Filter bank]] transceivers for OFDM and DMT systems, Cambridge University Press, 2010.<ref name="PPbookSearch" />
# P. P. Vaidyanathan, Signals, Systems, and Signal Processing, Cambridge University Press, 2024.<ref name="PPbookSearch" />

==References==
{{Reflist}}

== External links ==

* [https://www.eas.caltech.edu/people/ppvnath P. P. Vaidyanathan's homepage]
* [https://scholar.google.com/citations?user=JZlbx8cAAAAJ&hl=en Google scholar page]
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{{DEFAULTSORT:Vaidyanathan, P. P.}}
[[Category:Scientists from Kolkata]]
[[Category:Indian electrical engineers]]
[[Category:California Institute of Technology faculty]]
[[Category:University of California, Santa Barbara alumni]]
[[Category:Living people]]
[[Category:1954 births]]
[[Category:Engineers from West Bengal]]
[[Category:20th-century Indian engineers]]
[[Category:Fellows of the IEEE]]

P. P. Vaidyanathan - Revision history

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