"Wideband Analog-to-Information Conversion: From Theory to VLSI Circuits"

Christoph Studer, Research Scientist, Rice University

February 1st (Friday), 10:00am
ROOM CHANGE: Harold Frank Hall (HFH), Rm 1132 - CS Conference Room

Recent advances in signal processing theory, algorithm design, and very-large scale integration (VLSI) are accelerating progress in a host of important applications, including signal processing, imaging, and wireless communication. Today’s key challenge for the VLSI designer is to realize increasingly complicated algorithms that process massive amounts of data using cost-effective, low-power circuits and systems.

In this talk, I will advocate a holistic design approach that jointly considers the theory, algorithms, and VLSI implementation aspects to master this challenge. To highlight the efficacy of this approach, I will present an example from my recent research on the design of a wideband analog-to-information (A2I) converter in 28nm CMOS technology. The proposed A2I converter performs simultaneous dimensionality reduction and acquisition of spectrally sparse wideband signals using a low-complexity random-subsampling analog-to-digital converter. A dedicated digital recovery unit then reconstructs the spectral information at high rates via convex optimization. I will demonstrate the capabilities of the proposed A2I converter design and discuss the pros and cons of compressive signal acquisition and sparse recovery from a VLSI implementation point-of-view.

About Christoph Studer:

photo of christoph studer Christoph Studer received his MS and PhD degrees in Information Technology and Electrical Engineering from ETH Zurich, in 2005 and 2009, respectively. In 2005, he was a Visiting Researcher with the Smart Antennas Research Group at Stanford University. From 2006 to 2009, he was a Research Assistant in both the Integrated Systems Laboratory (IIS) and the Communication Technology Laboratory (CTL) at ETH Zurich. From 2009 to 2012, Dr. Studer was a Postdoctoral Researcher at CTL, ETH Zurich, and in the Digital Signal Processing Group at Rice University. Since 2013, he has held the position of Research Scientist at Rice University. Dr. Studer's research interests include the design of digital VLSI circuits and systems, signal and image processing, analysis of massive datasets, and wireless communication.

Dr. Studer was the recipient of an ETH Medal in 2005 and 2011 for his MS and PhD theses, respectively. He has received best student paper awards at the 2007 Asilomar Conference on Signals, Systems, and Computers and the 2008 IEEE International Symposium on Circuits and Systems, and received the 2010 Swisscom/ICTnet Innovations Award. In 2011, Dr. Studer was awarded a two-year fellowship for Advanced Researchers by the Swiss National Science Foundation (SNSF).

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