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Fréquence de coupure

Publications associées (195)

Real-time multi-signal frequency tracking with a bank of notch filters to estimate the respiratory rate from the ECG

Jean-Marc Vesin, Leila Mirmohamadsadeghi

Measuring the instantaneous frequency of a signal rapidly and accurately is essential in many applications. However, the instantaneous frequency by definition is a parameter difficult to determine. Fourier-based methods introduce estimation delays as compu ...

Institute of Physics2016

Multidrop data transfer

Mohammad Amin Shokrollahi, Ali Hormati

Multi-drop communications channels can have significantly deep notches in their frequency response causing a corresponding limitation of the effective data transmission rate. A special time-ordered coding method is described which results in the emitted sp ...

2016

Scattering-dominated high-temperature phase of 1T-TiSe2: An optical conductivity study

László Forró, Helmuth Berger, Eduard Tutis, Neven Barisic

The controversy regarding the precise nature of the high-temperature phase of 1T-TiSe2 lasts for decades. It has intensified in recent times when new evidence for the excitonic origin of the low-temperature charge-density wave state started to unveil. Here ...

Amer Physical Soc2016

Minimally Invasive Optical Photoacoustic Endoscopy with a Single Waveguide for Light and Sound

Demetri Psaltis, Christophe Moser, Ioannis Papadopoulos, Salma Farahi, Nicolino Stasio, Emmanuel André Henri Bossy

An endoscopic device for photoacoustic imaging, including a multimode optical fiber having a distal end and a proximal end, a light source to provide a light beam to the proximal end of the multimode optical fiber, a transducer to capture acoustic waves th ...

2016

94-GHz Large-Signal Operation of AlInN/GaN High-Electron-Mobility Transistors on Silicon With Regrown Ohmic Contacts

Nicolas Grandjean, Jean-François Carlin, Marco Malinverni, Lorenzo Lugani

We report the first 94-GHz (W-band) large-signal performance of AlInN/GaN high-electron-mobility transistors (HEMTs) grown on high-resistivity silicon (111) substrates. A maximum output power density of 1.35 W/mm and peak power-added-efficiency of 12% are ...

Ieee-Inst Electrical Electronics Engineers Inc2015

Investigation of Flow Separation Control by Nanosecond Pulsed Dielectric Barrier Discharge Actuators

Peter Ott, Pénélope Leyland, Philip Peschke, Nadia Grech

The ability of nanosecond pulsed DBD actuators to control flow separation was investigated on a NACA 0015 profile for velocities reaching Re = 230,000 (24 m/s). The optimal location for the actuator was determined from oil flow experiments. Moderate voltag ...

EUCASS, Torus Press2015

Volume refractometry of liquids using stable optofluidic Fabry-Perot resonator with curved surfaces

Maurine Malak Karam Awadallah

This work reports a simple, miniaturized optical sensing module for liquid refractometry. It is based on a stable Fabry-Perot resonator consisting of two silicon cylindrical mirrors with a cylindrical lens in the core. The lens is formed by a capillary tub ...

Spie-Int Soc Optical Engineering2015

Generalized impedance boundary conditions for strongly absorbing obstacle: The full wave equation

Hoài-Minh Nguyên

This paper is devoted to the study of the generalized impedance boundary conditions (GIBCs) for a strongly absorbing obstacle in the time regime in two and three dimensions. The GIBCs in the time domain are heuristically derived from the corresponding cond ...

World Scientific Publishing2015

What’s the Frequency, Kenneth?: Sublinear Fourier Sampling Off the Grid

Volkan Cevher, Yen-Huan Li

We design a sublinear Fourier sampling algorithm for a case of sparse off-grid frequency recovery. These are signals with the form f(t)=∑kj=1ajeiωjt+ν^ , t∈Z ; i.e., exponential polynomials with a noise term. The frequencies {ω j } satisfy ω j ∈ [η,2π − η ...

Springer Verlag2015

MECHANICAL SPECTROSCOPY OF ORDERED BINARY Au-Cu

Daniele Mari, Robert Schaller, Iva Tkalcec Vâju

We have studied a binary Au-Cu single crystal by mechanical spectroscopy. Upon very slow cooling from high temperatures, additional relaxation peaks arise at lower frequencies in isothermal spectra after the disappearing of the Zener peak below 665 K due t ...

Polska Akad Nauk, Polish Acad Sciences, Inst Metall & Mater Sci Pas2015

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