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» Algebraic Signal Processing Theory
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ICASSP
2010
IEEE
13 years 8 months ago
Automatic detection of well sampled images via a new ringing measure
According to Shannon Sampling Theory, Fourier interpolation is the optimal way to reach subpixel accuracy from a properly-sampled digital image. However, for most images this inte...
Gwendoline Blanchet, Lionel Moisan, Bernard Roug&e...
ICASSP
2011
IEEE
12 years 11 months ago
Shannon meets Nyquist: Capacity limits of sampled analog channels
We explore several fundamental questions at the intersection of sampling theory and information theory. In particular, we study how capacity is affected by a given sampling mechan...
Yuxin Chen, Yonina C. Eldar, Andrea J. Goldsmith
ICASSP
2011
IEEE
12 years 11 months ago
On the implementation of MIMO-OFDM schemes using perturbation of the QR decomposition: Application to 3GPP LTE-a systems
Consider a flat-fading Multiple-Input Multiple-Output (MIMO) system. The near-optimum detection problematic has been shown to be efficiently solved through QR Decomposition (QRD...
Sébastien Aubert, Jane Tournois, Fabienne N...
LICS
2008
IEEE
14 years 2 months ago
On the Axiomatizability of Impossible Futures: Preorder versus Equivalence
We investigate the (in)equational theory of impossible futures semantics over the process algebra BCCSP. We prove that no finite, sound axiomatization for BCCSP modulo impossible...
Taolue Chen, Wan Fokkink
MKM
2007
Springer
14 years 1 months ago
A Rational Reconstruction of a System for Experimental Mathematics
Abstract. In previous papers we described the implementation of a system which combines mathematical object generation, transformation and filtering, conjecture generation, provin...
Jacques Carette, William M. Farmer, Volker Sorge