Publications associées à Radioastronomie

Compressed sensing reconstruction of a string signal from interferometric observations of the cosmic microwave background

Pierre Vandergheynst, Yves Wiaux, Gilles Puy

We propose an algorithm for the reconstruction of the signal induced by cosmic strings in the cosmic microwave background (CMB), from radio-interferometric data at arcminute resolution. Radio interferometry provides incomplete and noisy Fourier measurement ...

Wiley-Blackwell2010

Securing Every Bit: Authenticated Broadcast in Radio Networks

Rachid Guerraoui, Seth Gilbert, Dan Alistarh, Zarko Milosevic

This paper studies non-cryptographic authenticated broad- cast in radio networks subject to malicious failures. We in- troduce two protocols that address this problem. The first, NeighborWatchRB, makes use of a novel strategy in which honest devices monito ...

Acm Order Department, P O Box 64145, Baltimore, Md 21264 Usa2010

Compressed sensing imaging techniques for radio interferometry

Pierre Vandergheynst, Yves Wiaux, Gilles Puy, Laurent Jacques

Radio interferometry probes astrophysical signals through incomplete and noisy Fourier measurements. The theory of compressed sensing demonstrates that such measurements may actually suffice for accurate reconstruction of sparse or compressible signals. We ...

Wiley-Blackwell2009

Compressed sensing for radio interferometry: prior-enhanced Basis Pursuit imaging techniques

Pierre Vandergheynst, Yves Wiaux, Gilles Puy, Laurent Jacques

We propose and assess the performance of new imaging techniques for radio interferometry that rely on the versatility of the compressed sensing framework to account for prior information on the signals. The present manuscript represents a summary of recent ...

2009

Spread spectrum for imaging techniques in radio interferometry

Pierre Vandergheynst, Yves Wiaux, Gilles Puy

We consider the probe of astrophysical signals through radio interferometers with small field of view and baselines with non-negligible and constant component in the pointing direction. In this context, the visibilities measured essentially identify with a ...

Wiley-Blackwell2009

Compressed sensing for radio interferometry: spread spectrum imaging techniques

Pierre Vandergheynst, Yves Wiaux, Gilles Puy

We consider the problem of reconstruction of astrophysical signals probed by radio interferometers with baselines bearing a non-negligible component in the pointing direction. The visibilities measured essentially identify with a noisy and incomplete Fouri ...

2009

Localized Plasmonic Control of Extraordinary Light Tranmission in Rectangular Coaxial Aperture Arrays at Mid-IR

Hatice Altug, Shyamsunder Erramilli, Xiaoyan Wang

It has been theoretically predicted and experimentally shown that circular coaxial aperture arrays have higher transmissivities with respect to simple circular ones. This observation is mainly attributed to the propagating waveguide modes supported by the ...

SPIE-INT SOC OPTICAL ENGINEERING2009

Hybridation MEMS/UWB pour la navigation pédestre intra-muros

Valérie Jeanne Thérèse Renaudin-Schouler

Facing the expansion of geolocation needs, illustrated by the GALILEO European project, the growth of Location Based Services (LBS) and the need to identify the location of emergency mobile phone calls in Europe (standard E112), the research on localizatio ...

EPFL2009

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Radioastronomie

Method for wireless transmission between two electroacoustic transducers, and device for carrying out said method

Compressed sensing reconstruction of a string signal from interferometric observations of the cosmic microwave background

Securing Every Bit: Authenticated Broadcast in Radio Networks

Compressed sensing imaging techniques for radio interferometry

Compressed sensing for radio interferometry: prior-enhanced Basis Pursuit imaging techniques

Spread spectrum for imaging techniques in radio interferometry

Spread spectrum for imaging techniques in radio interferometry and strings detection

Compressed sensing for radio interferometry: spread spectrum imaging techniques

Localized Plasmonic Control of Extraordinary Light Tranmission in Rectangular Coaxial Aperture Arrays at Mid-IR

Hybridation MEMS/UWB pour la navigation pédestre intra-muros

Graph Chatbot

Chattez avec Graph Search

Hybridation MEMS/UWB pour la navigation pédestre intra-muros

Method for wireless transmission between two electroacoustic transducers, and device for carrying out said method

Spread spectrum for imaging techniques in radio interferometry and strings detection

Compressed sensing imaging techniques for radio interferometry

Compressed sensing reconstruction of a string signal from interferometric observations of the cosmic microwave background

Spread spectrum for imaging techniques in radio interferometry

Securing Every Bit: Authenticated Broadcast in Radio Networks

Compressed sensing for radio interferometry: prior-enhanced Basis Pursuit imaging techniques

Compressed sensing for radio interferometry: spread spectrum imaging techniques

Localized Plasmonic Control of Extraordinary Light Tranmission in Rectangular Coaxial Aperture Arrays at Mid-IR