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Communication dans un congrès

Time-Frequency Processing Adapted for the Different Electromagnetic Compatibility Issues in the Railway Domain

Mohammed Raouf Kousri, Virginie Deniau, Marc Heddebaut, S. Baranowski, Jean Rioult

The railway environment is very rich in terms of electromagnetic disturbances. The variety of the transient and permanent interferences and the current evolution of the communication and signaling railway systems require the adaptation of EMC railway standards. In particular, standardized emission…, L'environnement électromagnétique du chemin de fer est très riche en termes de perturbations électromagnétiques. La variété des signaux transitoires et des interférences permanentes et l'évolution actuelle des systèmes de communication et de signalisation ferroviaire nécessitent l'…

EMC 2015, Joint IEEE International Symposium on Electromagnetic Compatibility and EMC Europe, Aug 2015, Dresden, Germany. 6p, ⟨10.1109/ISEMC.2015.7256353⟩. ⟨hal-01471551⟩

Article dans une revue

A Unified Explanation of gm /ID -Based Noise Analysis

Jack Ou, Pietro Maris Ferreira

We present an unified explanation of the transconductance-to-drain current (gm/ID)-based noise analysis in this paper. We show that both thermal noise coefficient (γ) and device noise corner frequency (fco) are dependent on the gm/ID of a transistor. We derive expressions to demonstrate the…

Journal of Circuits, Systems, and Computers, 2015, 24 (1), pp.1550010. ⟨10.1142/S0218126615500103⟩. ⟨hal-01222077⟩

Communication dans un congrès

0.69 THz room temperature heterodyne detection using GaN nanodiodes

Carlos Daher, Jeremie Torres, Ignacio Iñiguez-De-La-Torre, Philippe Nouvel, Luca Varani, Paul Sangaré, Guillaume Ducournau, Christophe Gaquière, Javier Mateos, And Tomás González

GaN-based asymmetric nanodiodes have been used as heterodyne detectors up to 0.69 THz in free-space configuration where Intermediate Frequency bandwidth has been measured up 13 GHz. Monte Carlo simulations, used to estimate nano-device intrinsic conversion losses of 27 dB have confirmed these…

19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures, 2015, Salamanca, Spain. ⟨10.1088/1742-6596/647/1/012006⟩. ⟨hal-01920765⟩

Communication dans un congrès

Experimental Study of Multilayer Piezo-magnetic SAW Delay Line for Magnetic Sensor

Meriem Elhosni, Sébastien Petit-Watelot, Michel Hehn, Sami Hage-Ali, Keltouma Ait Aissa, Daniel Lacour, Abdelkrim Talbi, Omar Elmazria

<div><p>This communication describes an experimental study of multilayer piezo-magnetic acoustic wave devices used as sensors of external magnetic fields applied in plane, parallel or perpendicular to the direction of the acoustic wave propagation direction. The considered device…

Eurosensors 2015, Sep 2025, Freiburg (Allemagne), France. pp.870 - 873, ⟨10.1016/j.proeng.2015.08.743⟩. ⟨hal-05415947⟩

Article dans une revue

Two-frequency excitation of single-mode Faraday waves

William R. Batson, Farzam Zoueshtiagh, Raviprasad Narayanan

The purpose of this work is to investigate, for the first time, excitation of Faraday waves in small containers using two commensurate frequencies. This spatial restriction, which is encountered at low frequencies, leads to a wave composed primarily of one spatial eigenmode of the container. When…

Journal of Fluid Mechanics, 2015, 764, pp.538-571. ⟨10.1017/jfm.2014.724⟩. ⟨hal-03277848⟩

Article dans une revue

A distributed antenna system for indoor accurate WiFi localization

Christophe Loyez, Michael Bocquet, C. Lethien, N. Rolland

Specific infrastructures are a key challenge for indoor geo-localization systems. In particular, an accurate narrowband localization technique using 802.11 g WiFi signals is proposed in this letter. The related system architecture is built on the basis of radio over fiber topology of distributed…

IEEE Antennas and Wireless Propagation Letters, 2015, 14, pp.1184-1187. ⟨10.1109/LAWP.2015.2396901⟩. ⟨hal-03561323⟩

Communication dans un congrès

Experimental characterisation of IEEE 802.15.4 channel running at 2.4 GHz inside buildings

Laïd Sadoudi, Ulrich Biaou, Michael Bocquet, Emmanuel Moulin, Atika Rivenq, Jamal Assaad

In order to reduce energy consumption in buildings, sensor networks can be deployed to manage and control equipment in buildings. The WSNs based on ZigBee/IEEE 802.15.4 in the 2.4 GHz ISM (Industry Science and Medical) band, supports low prices and long battery life with moderate rates, low…

3rd IEEE International Workshop on Measurements and Networking, M and N 2015, Oct 2015, Coimbra, Portugal. pp.42-47, ⟨10.1109/IWMN.2015.7322971⟩. ⟨hal-03528692⟩

Communication dans un congrès

Estimation of the area of a reverberant plate using average reverberation properties

Hossep Achdjian, Emmanuel Moulin, Farouk Benmeddour, Jamal Assaad

This paper aims to present an original method for the estimation of the area of thin plates of arbitrary geometrical shapes. This method relies on the acquisition and ensemble processing of reverberated elastic signals on few sensors. The acoustical Green's function in a reverberant solid…

International Congress on Ultrasonics, ICU 2015, May 2015, Metz, France. pp.139-142, ⟨10.1016/j.phpro.2015.08.065⟩. ⟨hal-04087466⟩

Article dans une revue

The Faraday instability in miscible fluid systems

S.V. Diwakar, Farzam Zoueshtiagh, Sakir Amiroudine, Ranga Narayanan

The Faraday instability arising in distinct miscible fluid layers, when the parametric forcing is parallel to the gravity vector, is analysed. A time-dependent density gradient is established from the moment the fluid layers are placed in contact with one another. The operating parameters in a…

Physics of Fluids, 2015, 27 (8), pp.084111. ⟨10.1063/1.4929401⟩. ⟨hal-03277845⟩

Article dans une revue

Modelling based on Spatial Impulse Response Model for Optimization of Inter Digital Transducers (SAW Sensors) for Non Destructive Testing

Dame Fall, Marc Duquennoy, Mohammadi Ouaftouh, Bogdan Piwakowski, Frédéric Jenot

This study deals with modelling SAW-IDT transducers for their optimization. These sensors are specifically developed to characterize properties of thin layers, coatings and functional surfaces. Among the methods of characterization, the ultrasonic methods using Rayleigh surface waves are…

Physics Procedia, 2015, Proceedings of the 2015 ICU International Congress on Ultrasonics, Metz, France, 70, pp.927-931. ⟨10.1016/j.phpro.2015.08.192⟩. ⟨hal-03810639⟩