 ELECO 2021 Invited Talks |
Data Ram BHASKAR Department of Electrical Engineering Delhi Technological University, New Delhi, India Senior Member IEEE (USA), Fellow IETE (India), Fellow IE (India) Chartered Engineer (India), Life Member ISTE (India) Abstract – There are many situations in communication, control and instrumentation systems where inverse filters may be required to correct the distortion of the signal, caused by the signal processors or the transmission systems. The inverse filters, therefore, should have the frequency response which is reciprocal of the frequency response of the system that caused the distortion. In the area of digital signal processing there are several techniques for performing inverse digital filtering however, by contrast, the methods and circuits for realizing continuous-time analogue inverse filters have been investigated mainly during the last two decades (2000 onward), although a few articles were available even before 2000. Thus, analogue inverse filters have been realized using the conventional building blocks like Op-amps and OTAs as well as a number of modern current-mode active building blocks such as CCs, DDCCs, CFOAs, CDBAs, CDTAs, OTRAs, FTFNs, FTFNTAs and VDTAs etc. In this invited talk, a brief historical account of the research in this area will be given, significant progress made in this area will be highlighted and some unresolved problems related to the realization of inverse active analogue filters will be pointed out. 
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 Professor Data Ram BHASKAR Biography - Professor D. R. BHASKAR received B.Sc. degree from Agra University, B.Tech. degree from Indian Institute of Technology (IIT), Kanpur, M.Tech. from IIT, Delhi, and Ph. D. from the University of Delhi. Dr. Bhaskar held the positions of Assistant Engineer in DESU (1981-1984), Lecturer (1984-1990) and Senior Lecturer (1990-1995) at the EE Department of Delhi College of Engineering and Rader in ECE Department of Jamia Millia Islamia (1995-2002). He became full Professor in January 2002 and has served as the Head of the Department of ECE during 2002-2005. Since August 05, 2016, he has been re-employed as the Professor of EE at Delhi Technological University, Delhi. Professor Bhaskar’s teaching and research interests are in the areas of Analogue Integrated Circuits and Signal Processing/Generation, Communication Systems and Electronic Instrumentation. He has authored/co-authored over 100 research papers in various International Journals, 4 book chapters and 4 monographs. Professor Bhaskar is a Senior Member of IEEE, a Fellow of the Institution of Engineers, and a Life Fellow of the Institute of Electronics and Telecommunication Engineers (IETE), India. He served as an Editor of the IETE Journal of Education during 2012-2017 and co-edited (along with Professor Dalibor Biolek and Professor Raj Senani) a special issue of the Journal Advances in Electrical and Electronics Engineering published in December 2017. He has acted/has been acting as a Reviewer for several International Journals. His biography is included in Marquis Who’s Who and a number of other international biographical directories. In 2020, he was ranked among top 2% scientists in the world in a survey conducted by Standford University. |
