Concept

Filtre contrôlé en tension

Publications associées (33)

A Non-linear Filter to Detect Atrial Activation from Intracardiac Electrograms

Jean-Marc Vesin, Sasan Yazdani, Andréa Buttu, Etienne Pruvot

Atrial activation (AA) detection during atrial fibrillation (AF) can be considered as a first step in estimating AF characteristics such as the AF cycle length. The detection of AA from intracardiac electrograms (EGM) remains challenging due to the constan ...

2017

Driven dual phase lock loop

Pierre-André Farine, Steve Tanner, Yazhou Zhao

The invention relates to a phase lock loop (100) comprising: - a loop filter (140), - a voltage controlled oscillator (150), - a frequency divider (160), - a frequency lock detector (113), able to emit a frequency lock indication signal (LOCK), - a digital ...

2016

A noise reduction circuit technique for CMOS terahertz imaging

Christian Enz, Assim Boukhayma

This paper presents a noise reduction technique for Terahertz imaging based on modulating the THz source in order to transpose the signal at the output of the rectifier at a higher frequency where there is no 1/f noise and then filtering with a high Q band ...

IEEE2015

Fragmentation in Time-of-Flight Spectrometry-Based Calculations of Ionic Electrospray Thruster Performance

Herbert Shea, Daniel George Courtney

A method has been presented for accounting for ion fragmentation that occurs within the nonzero field of an ionic electrospray thruster. Given the complexities associated with direct thrust measurements, indirect means (and time-of-flight (TOF) in particul ...

American Institute of Aeronautics and Astronautics2015

Fixed-order decentralized/distributed control of islanded inverter-interfaced microgrids

Alireza Karimi, Mahdieh Sadat Sad Abadi

This paper focuses on the problem of voltage control of islanded inverter-interfaced microgrids consisting of several distributed generation (DG) units with radial structure. The main objectives are to (i) design a decentralized/distributed voltage control ...

Elsevier2015

Low Energy Collisions in Merged Neutral Molecular Beams

Benjamin Bertsche

Within this thesis two experiments will be described. In the first experiment a velocity filter was used to obtain a beam of polar molecules (ND3) with a translational temperature of less than 5K. For the first time the dynamics of individual rotational st ...

EPFL2014

FADE: A Programmable Filtering Accelerator for Instruction-Grain Monitoring

Babak Falsafi, Boris Robert Grot, Yusuf Onur Koçberber, Sotiria Fytraki, Evangelos Vlachos

Instruction-grain monitoring is a powerful approach that enables a wide spectrum of bug-finding tools. As existing software approaches incur prohibitive runtime overhead, researchers have focused on hardware support for instruction-grain monitoring. A recu ...

2014

Dynamic Analysis and State Feedback Voltage Control of Single-Phase Active Rectifiers with DC-Link Resonant Filters

Alfred Rufer, Michail Vasiladiotis

Single-phase active rectifiers exhibit an inherent strong second-order current harmonic on their DC-link. The latter is often undesirable from a load point of view and is therefore chosen to be eliminated. A common method is the use of a resonant passive L ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Efficient Schemes for Adaptive Frequency Tracking and their Relevance for EEG and ECG

Jérôme Sébastien Van Zaen

Amplitude and frequency are the two primary features of one-dimensional signals, and thus both are widely utilized to analysis data in numerous fields. While amplitude can be examined directly, frequency requires more elaborate approaches, except in the si ...

EPFL2012

Multi-parametric source-filter separation of speech and prosodic voice restoration

Olaf Schleusing

In this thesis, methods and models are developed and presented aiming at the estimation, restoration and transformation of the characteristics of human speech. During a first period of the thesis, a concept was developed that allows restoring prosodic voic ...

EPFL2012

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