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Home | Seminars and Symposia | Past seminars/symposia: Monday, April 23, 2012

Recent Advances: Bootstrap for Signal Processing

by

Abdelhak Zoubir
Darmstadt, Germany

Monday, April 23, 2012
4:00–7:00 pm

402 Walter Library

Zoubir imageThe use of more accurate models in signal processing applications such as communications, radar, sonar, biomedical engineering, speech and image processing and machine learning has become a fundamental requirement. With an improved accuracy the models have become more complex and inferential statistical signal processing required in parameter estimation, signal detection and classification, for example, has become intractable. The signal processing practitioner requires a simple but accurate method for assessing errors of estimates and answering inferential questions. Asymptotic approximations are useful only when enough data is available, which is not always possible due to time constraints, the nature of the signal or the measurement setting. In place of the formulae and tables of parametric and non-parametric procedures based on complicated mathematics and asymptotic approximations, tools such as the bootstrap are powerful for solving complex engineering problems. It is the method of an engineer's choice for solving inferential signal processing problems, such as signal detection, confidence limits estimation and model selection, to mention a few. In this talk, we first give a brief overview of the basic principle underlying the bootstrap methodology. We then discuss bootstrap techniques for independent data, followed by bootstrap techniques for dependent data. Bootstrap methods for signal detection and model selection are presented along with frequency domain bootstrap methods for spectral analysis. Real-data examples are given throughout the talk.

 

Abdelhak M. Zoubir is a Fellow of the IEEE for contributions to statistical signal processing and an IEEE Distinguished Lecturer (2010-2011). He received the Dipl.-Ing degree (BSc/BEng) from Fachhochschule Niederrhein, Germany, in 1983, the Dipl.-Ing. (MSc/MEng) and the Dr.-Ing. (PhD) degree from Ruhr-Universität Bochum, Germany, in 1987 and 1992, respectively, all in Electrical Engineering. Early placement in industry (Klöckner-Moeller & Siempelkamp AG) was then followed by Associate Lectureship in the Division for Signal Theory at Ruhr-Universität Bochum, Germany. In June 1992, he joined Queensland University of Technology where he was Lecturer, Senior Lecturer and then Associate Professor in the School of Electrical and Electronic Systems Engineering. In March 1999, he took up the position of Professor of Telecommunications at Curtin University of Technology, where he was Head of the School of Electrical & Computer Engineering from November 2001 until February 2003. He has been Professor of Signal Processing at Technische Universität Darmstadt since February 2003. Research His general research interest lies in statistical methods for signal processing with applications to cooperative sensor communications, synthetic aperture sonar, synthetic aperture radar, biomedical engineering and monitoring and safety for automotive applications. His current research interest lies in bootstrap techniques for non-stationary and non-Gaussian signals and robust statistics for signal processing, with applications to distributed detection, spectrum sensing, localization of user equipment in wireless communications, and automatic detection and classification in Synthetic Aperture Sonar (SAS) and Through-The-Wall radar imaging. Dr Zoubir was a tutorial speaker at the 24th International Conference on Acoustics, Speech and Signal Processing (ICASSP-99) held in Phoenix (Arizona), at the 17th European Signal Processing Conference (EUSIPCO-09) held in Glasgow (United Kingdom), a Keynote Speaker at the 15th IEEE Workshop on Statistical Signal Processing (SSP 2009), held in Cardiff (United Kingdom), the 10th IEEE International Conference on Signal Processing (ICSP 2010), held in Beijing, China, and The 19th IEEE Conference on Signal Processing and Communications Applications (SIU 2011), held in Antalya, Turkey. He has been invited speaker at international conferences and research institutions. Dr Zoubir organized IEEE-sponsored conferences and numerous special sessions at international conferences. He was the General Co-Chair of the 5th IEEE International Workshop on Sensor Array and Multi-Channel Signal Processing held in July 2008. He was Plenary Co-Chair for ICASSP-08, held in May 2008, the General Co-Chair of the 3rd IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), held in December 2003, the Technical Chairman of the 11th IEEE Workshop on Statistical Signal Processing held in August 2001 and Deputy Technical Chairman (Special Sessions/Tutorials) of ICASSP-94. He is the Technical Co-Chair of ICASSP-14, to be held in Florence in Italy. He was an Associate Editor of the IEEE Transactions on Signal Processing from 1999-2005. He is the Chair (2010-2011) of the IEEE SPS Technical Committee (TC) on Signal Processing Theory and Methods, and its Vice-Chair (2008-2009). He served on that committee as a member from 2002-2007. He also has been a member of the IEEE SPS TC Sensor Array and Multi-channel Signal Processing since 2007 and served one term from 2006-2008 on the IEEE SPS TC Signal Processing Education. He currently serves on the Editorial Boards of the EURASIP journals Signal Processing and Journal on Advances in Signal Processing and is a member of the Senior Editorial Board of the IEEE Journal of Selected Topics in Signal Processing. He is a Member of the Board of Directors of the European Association for Signal Processing (EURASIP). Dr Zoubir is the incoming Editor-In-Chief (2012-2014) of the IEEE Signal Processing Magazine.