Talk by Distinguished Lecturer Yonina Eldar: Defying Nyquist in Analog to Digital Conversion

The famous Shannon-Nyquist theorem has become a landmark in the development of digital signal processing. However, in many modern applications, the signal band- widths have increased tremendously, while the acquisition capabilities have not scaled sufficiently fast. Consequently, conversion to digital has become a serious bottleneck. In this talk a new framework for sampling wideband analog signals at rates far below that dictated by the Nyquist rate will be presented. The focus will be both on the theoretical developments, as well as on actual hardware implement- tations and considerations that allow realization of sub- Nyquist samplers in practice. Applications to a variety of different problems in communi- cations, bioimaging, and signal processing will also be described.


Time: May 16, 2012, 9am
Location: Ruhr-Universität Bochum, Gebäude ID, Ebene 94, Raum 653

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