A5005026809- Antenna Design and Analysis
- Wireless Body Area Networks
- Millimeter-Wave Propagation and Modeling
- Indoor and Outdoor Localization Technologies
- Microwave Engineering and Waveguides
- Antenna Design and Optimization
- Advanced Antenna and Metasurface Technologies
- Advanced MIMO Systems Optimization
- Radio Frequency Integrated Circuit Design
- Energy Harvesting in Wireless Networks
- Molecular Communication and Nanonetworks
- Marine Biology and Ecology Research
- Metamaterials and Metasurfaces Applications
- Direction-of-Arrival Estimation Techniques
- Surgical Simulation and Training
- Non-Invasive Vital Sign Monitoring
- Speech and Audio Processing
- Power Line Communications and Noise
- Renal and Vascular Pathologies
- Wireless Communication Security Techniques
- Advanced Power Amplifier Design
- Anatomy and Medical Technology
- Photonic and Optical Devices
- Microwave Imaging and Scattering Analysis
- Target Tracking and Data Fusion in Sensor Networks
Laboratoire de Génie Électrique et Électronique de Paris
2019-2025
Sorbonne Université
2015-2024
Centre National de la Recherche Scientifique
2012-2024
Sorbonne University Abu Dhabi
2023
CentraleSupélec
2020-2022
Université Paris-Saclay
2020-2022
Supélec
2021
Centre Hospitalier Universitaire de Bordeaux
2021
Ifremer
2007-2020
Université de Pau et des Pays de l'Adour
2020
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 153:5-24 (1997) - doi:10.3354/meps153005 Biological and geological dynamics over four years on a high-temperature sulfide structure at Juan de Fuca Ridge hydrothermal observatory Sarrazin J, Robigou V, Juniper SK, Delaney JR An extensive videoscopic study of (northeast Pacific) examined temporal variation in...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 190:89-112 (1999) - doi:10.3354/meps190089 Physical and chemical factors influencing species distributions on hydrothermal sulfide edifices of Juan de Fuca Ridge, northeast Pacific Jozée Sarrazin1,*, S. Kim Juniper2, Gary Massoth3, Pierre Legendre4 1Woods Hole Oceanographic Institution, 360 Woods Road, MS#8,...
We present new high‐resolution bathymetry and backscatter data acquired in 2006 with the ROV Victor 6000 over Lucky Strike hydrothermal field, Mid‐Atlantic Ridge. As long‐term monitoring of area (MoMAR project) is being implemented, these offer an unprecedented view distribution edifices, eruptive facies, small‐scale tectonic features vent field. show that vents located NW NE correspond wide expanses lumpy seafloor which we interpret as primarily made broken chimneys sulfide edifices. They...
A new single-feed reconfigurable antenna for pattern diversity is presented in this paper. The proposed structure based on a metallic cubic cavity which radiates through rectangular slots. reconfiguration achieved with PIN diode switches by short-circuiting slots their center. designed can switch between three different radiation patterns radiate 4pi steradian range and receive any incident field polarizations. prototype of the antenna, including diodes operating 5 GHz band, has been built...
Exergames have been proposed as a potential tool to improve the current practice of musculoskeletal rehabilitation. Inertial or optical motion capture sensors are commonly used track subject's movements. However, use these tools suffers from lack accuracy in estimating joint angles, which could lead wrong data interpretation. In this study, we real time quaternion-based fusion scheme, based on extended Kalman filter, between inertial and visual sensors, estimation angles. The outcome was...
In this letter, characterization of circular high-impedance surfaces (HISs) is investigated. The reflection phase used for rectangular HISs here extended to lattices. Circular discussed in letter present a 2-D periodicity, and consequently the diagram determined concentric radial polarizations. effect mapping HIS into one investigated order give some insights regarding design such metasurface. presented constitutes useful tool low-profile antennas using as reflector.
Abstract. Understanding the ecological processes and connectivity of chemosynthetic deep-sea ecosystems requires comparative studies. In Guaymas Basin (Gulf California, Mexico), presence seeps vents in absence a biogeographic barrier, comparable sedimentary settings depths offers unique opportunity to assess role ecosystem-specific environmental conditions on macrofaunal communities. Six seep four vent assemblages were studied, three which characterised by common major foundation taxa:...
Neural networks (NNs) are efficient techniques for behavioral modeling of power amplifiers (PAs). This letter proposes a genetic algorithm to determine the optimal hyperparameters NN model PA. Different activation functions compared. The necessary number training epochs is also studied get an solution with significantly reduced computational complexity. Experimental measurements on PA different signals validate models determined by proposed method.
A numerical model of the fading a receiver (Rx) located near user body at 60 GHz in an indoor environment is presented. The based on channel IEEE 802.11ad. results are presented for a-Rx zone from 5 to 30 cm away body. With shadowing depending region (front or back) with respect base station, mean attenuation over bandwidth analyzed and modeled thanks two-wave diffuse power distribution model.
Abstract. Mud volcanoes are a~special type of cold seeps where life is based on chemoautotrophic processes. They considered to be extreme environments and characterized by unique megafaunal macrofaunal communities. However, very few studies mud taking into account the smaller meiobenthic communities have been carried out. Two were explored during MEDECO (MEditerranean Deep-sea ECOsystems) cruise (2007) with remotely operated vehicle (ROV) Victor-6000: Amsterdam, located south Turkey between...
A fast computation and accurate analytical model for off-body propagation is derived in this paper. The paper discusses the from an external source to a receiver located on body. developed normal incident plane wave by describing human body with circular cylinder. We show that total received electric field around can be written as creeping shadow region geometrical optics result lit region. It also shown at 60 GHz, boundary width negligible. shows perfect agreement experimental results...
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The use, as diversity antennas, of electromagnetic cavities with radiated slots etched on their faces is discussed. From this kind geometries, many antenna configurations can be designed in order to provide uncorrelated signals. As an example, a three-port which combines polarization and radiation pattern diversities presented. structure operates the 5 GHz band exhibits coupling between input ports less than -30dB measurement. Envelope correlations patterns each port are 0.035 makes...
Abstract Colaço, A., Blandin, J., Cannat, M., Carval, T., Chavagnac, V., Connelly, D., Fabian, Ghiron, S., Goslin, Miranda, J. Reverdin, G., Sarrazin, Waldmann, C., and Sarradin, M. 2011. MoMAR-D: a technological challenge to monitor the dynamics of Lucky Strike vent ecosystem. – ICES Journal Marine Science, 68: 416–424. The MoMAR (monitoring Mid-Atlantic Ridge) project was initiated in 1998 by InterRidge programme promote coordinate long-term multidisciplinary monitoring hydrothermal vents...
This communication studies the effect of a hybrid reflector on radiation pattern an ultrawideband diamond dipole antenna. The cause split in broadside direction appearing when using uniform artificial-magnetic-conductor-based is investigated and found to be due destructive interference produced by surface currents localized certain areas reflector. A then proposed mitigate this problem both electrical magnetic conductors. solution enhances gain complete antenna with feeding system has been...
In this study, a bound-constrained optimization algorithm is applied for estimating physiological data (pulse and breathing rate) of human body using 60 GHz Doppler radar, by detecting displacements induced the heartbeat subject. The influence mutual phasing between two movements analyzed in theoretical framework application algorithms proved to be able accurately detect both rates, despite intermodulation effects them. Different procedures are compared shown more robust receiver noise...
Performance of impulse radio-based ultrawideband (IR-UWB) communications in wireless body area networks is investigated using the dedicated IEEE 802.15.6 standard. An IR-UWB transceiver system implemented for both on-off keying and differential binary phase-shift modulations. Bit error rates are determined from measurements different on-body links with data rates. It shown that a 25-dB-gain low noise amplifier (LNA) at receiver, reaching an uncoded bit rate BER 10 <sup...
Digital predistorsion (DPD) is a commonly used approach to compensate for the power amplifiers (PA) nonlinearities and memory effects as well improve its efficiency. To alleviate restriction brought by high peak-to-average ratio (PAPR) of input signals, crest factor reduction (CFR) needed higher In modern communication systems, transmitted signals gets lower, which makes complexities CFR DPD become nonnegligible. This article proposes new realize joint model using neural networks (NN). The...
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