Publicaciones

• Communication dans un congrès

Inversion of V(z) responses for determination Cij elastic constants by using an optimization method on the singularities of the reflection coefficient

Youssef Benmehrez, Michael Lematre, G. Bourse, Wei-Jiang Xu, Mohamed Ourak

The measurement of the V(z) curve, also called acoustical material signature has been used to determine cij elastic constants. The method is based on the comparison of measured and calculated R(θ,f) reflection coefficient. The measured R(θ,f) is determined by inversion of the V(z) curve. The cij...

QUANTITATIVE NONDESTRUCTIVE EVALUATION, Jul 2001, Brunswick, United States. pp.1353-1360, ⟨10.1063/1.1472952⟩. ⟨hal-00149914⟩

• Communication dans un congrès

Spectroscopie STM de semiconducteurs et de molécules organiques

D. Stievenard

Ecole Thématique de Porquerolles, 2002, Porquerolles, France. ⟨hal-00149688⟩

• Article dans une revue

High linearity performance of gallium nitride HEMT devices on silicon substrate at 4 GHz

Nicolas Vellas, Christophe Gaquière, Yannick Guhel, Matthieu Werquin, Frédéric Bue-Erkmen, Sylvain Laurent Delage, B. Boudart, Fabrice Semond, Jean-Claude de Jaeger

In this letter, we demonstrate that, for high linearity application, GaN devices benefit from their high drain-source bias voltages. An improvement up to 20 dB in intermodulation ratio can be observed at high power levels compared to usual GaAs PHEMT devices. This study demonstrates that the high...

IEEE Electron Device Letters, 2002, 23 (8), pp.461-463. ⟨10.1109/LED.2002.801328⟩. ⟨hal-00149698⟩

• Autre publication scientifique

Conception et réalisation d'un séparateur acousto-optique de polarisation

A. Sakkour

2002. ⟨hal-00162705⟩

• Communication dans un congrès

Unsupervised characterization of digital modulations

David Boulinguez, Christelle Garnier, Yves Delignon, Laurent Clavier

With the rising number of modulation types used in multi-user communication systems, we need to find efficient methods to discriminate them. Indeed, modulation recognition has become important in wireless communications for both civilian and military applications. Traditionally, to classify...

6th International Conference on Signal Processing, Aug 2002, Beijing, China. pp.1316-1319, ⟨10.1109/ICOSP.2002.1180034⟩. ⟨hal-00148333⟩

• Article dans une revue

Détection d'obstacles devant les véhicules de transports guidés. Utilisation d'un radar coopératif et d'un stéréoscope optique

L. Khoudour, S. Ambellouis, C. Vieren, P. Deloof

Instrumentation, Mesure, Métrologie, 2002, 2, pp.81-116. ⟨hal-00149879⟩

• Communication dans un congrès

Inspection de billes par spectroscopie de résonance des ondes ultrasonores de surface

S. Petit, J. Gualandri, H. Carrerot, C. Bruneel

2002, pp.360-363. ⟨hal-00149922⟩

• Article dans une revue

Characterization method of film-shaped materials. Pressure effect measurement on the electromagnetic properties into an absorbent material of compressed powder

J. Hinojosa, K. Lmimouni

AEU. International Journal of Electronics and Communications, 2002, 56, pp.211-214. ⟨hal-00148716⟩

• Communication dans un congrès

Transport électronique dans les systèmes organiques auto-assemblés sur des surfaces solides : applications en électronique moléculaire

D. Vuillaume

8èmes Journées de la Matière Condensée, JMC8, 2002, Marseille, France. ⟨hal-00148727⟩

• Communication dans un congrès

Rectifying molecular diodes from self-assembly on silicon

S. Lenfant, Christophe Krzeminski, C. Delerue, D. Vuillaume

Electronic Materials Conference, 2002, Santa Barbara, CA, United States. ⟨hal-00148725⟩