SIMO Blind System Identification and Order Determination

Dr. Issa Panahi

Assistant Professor, Electrical Engineering Department

University of Texas, Dallas

Tuesday, March 7^th, 2006, 3:30-4:30pm

113 Jerry Junkins Building

Abstract

In most of the existing methods for the blind identification of single input multiple output (SIMO) systems, such as the subspace (SS) and Least Squares (LS), the highest order of the unknown channels is assumed to be known or is overestimated. In this talk we present a new recursive method based on the modified Levinson algorithm which makes no such assumption. This method gives us the accurate orders of each of the unknown channels as long as at least one FIR channel is invertible. This algorithm when compared to the existing methods is robust, accurate and computationally simple. The proposed method also exhibits relatively better performance under noisy environments.

Biography:

Issa M.S. Panahi received Ph.D degree in electrical engineering from the University of Colorado at Boulder, Colorado. Dr. Panahi joined the department of electrical engineering at UTD as a visiting associate professor in Fall of 2001. He has been an assistant professor at UTD since September 1, 2003.

Dr. Panahi has over 13 years working experience in the industry. He worked on geophysical signal processing applications as a research scientist at the Bellaire Research Center - Shell Oil Development Company in Houston, TX for 3 years. Dr. Panahi joined the DSP Division of Texas Instruments (TI) Inc. in Houston, in 1991. Dr. Panahi established the worldwide DSP Embedded Control Systems business unit at TI. He was the Chief Architect of the TMS320F/C24xx and TMS320F/C28xx family of the Fixed-point DSP controllers. He was Senior Member of The TI’s Technical Staff and served as the Worldwide Applications Manager, Chief Technology Officer (CTO), and Advanced Systems Development Manager of the business unit. Dr. Panahi was Wireless/OMAP Application Manager at the TI’s Wireless business unit before joining UTD in 2001. He was member of the TI’s university relation team and member of the industry advisory groups at Rice University, Ohio State University, University of Wisconsin, Texas A&M University, and several universities in Europe, China, Korea, Taiwan, and Japan. Dr. Panahi directed the business unit’s R&D projects, as well as several research projects at universities in US and abroad that resulted in over 7 US patents and 60 technical publications. Dr. Panahi holds US patents and has authored/co-authored 4 TI’s books on ANC and DSP devices and over 50 technical journal and conference papers. Dr. Panahi has continued his collaboration with TI as a consultant over last 5 years.

At UTD, Dr. Panahi has been teaching senior and graduate level courses in digital signal processing including an advance graduate course that he created in the Spring of 2002. His research interests and experience in the areas of digital signal processing includes multiple-input multiple-output (MIMO) adaptive filtering, system identification, signal detection & estimation, spectrum estimation, active noise cancellation, embedded digital control systems. Dr. Panahi’s current research projects focuses on acoustic, bioacoustic, and optical signal processing. He has established and directed the Statistical Signal Processing Reach Lab and the UTD-UTSW Acoustic Research Lab at the EE Department where he conducts his research work with his team of MS and PhD students.

Dr Panahi is member of IEEE. He has served as the Secretary and Treasurer of the IEEE Dallas Chapter of Signal Processing Society. He is currently the Program Chair of the SP chapter of the IEEE Dallas. Dr. Panahi received the “2005 Outstanding Volunteer Award” for his services to the Dallas Section of the IEEE.

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