Publications related to A real-time control system architecture for industrial power amplifiers

A 2.4-GHz low complexity polar transmitter using dynamic biasing for IEEE 802.15.6

Christian Enz, Vladimir Kopta, Raghavasimhan Thirunarayanan, Franz Xaver Pengg

A 2.4 GHz polar transmitter compliant with the IEEE 802.15.6 standard is presented in this paper. A Linearized class-C power amplifier, employing dynamic biasing is used to minimize the adjacent channel interference and satisfy the defined spectrum mask re ...

IEEE2015

A closed-form expression for the total degradation in OFDM systems

Stefano Rosati

In this paper, building upon Bussgang's theorem, we present a new expression for the total degradation (TD) in OFDM systems. This novel expression is applicable to any high power amplifier (HPA) model. In case of ideal clipping HPA model and for particular ...

Wiley-Blackwell2015

Control strategies for a distributed active acoustic skin

Hervé Lissek, Sami Driss Karkar

New miniaturization and integration capabilities made available from the emerging MEMS technology allow for the design of artificial linings involving distribution of a large number of elementary cells, that may be composed of loudspeakers and microphones. ...

2015

Distributed digital real-time control system for TCV tokamak

Olivier Sauter, Basil Duval, Stefano Coda, Jean-Marc Moret, Federico Alberto Alfredo Felici, Damien Fasel, Philippe Marmillod, James Paley, Hoang Bao Le

A new digital feedback control system (named the SCD "Systeme de Controle Distribue") has been developed, integrated and used successfully to control TCV (Tokamak a Configuration Variable) plasmas. The system is designed to be modular, distributed, and sca ...

Elsevier Science Sa2014

Open-loop control of a separated boundary layer

François Gallaire, Edouard Boujo

Linear optimal gains

G_{opt}(\omega)

are computed for the separated boundary-layer flow past a two-dimensional bump in the subcritical regime. Very large values are found, making it possible for small-amplitude noise to be strongly amplified and to desta ...

Elsevier France-Editions Scientifiques Medicales Elsevier2014

Fixed-order Discrete-time LPV Controller Design

Alireza Karimi, Zlatko Emedi

A new method for the design of fixed-order dynamic output-feedback Linear Parameter Varying (LPV) controllers for discrete-time LPV systems with bounded scheduling parameter variations is presented in this paper. Sufficient conditions for the stability, H2 ...

2014

A 10.5 cm Ultrasound Link for Deep Implanted Medical Devices

Catherine Dehollain, Francesco Mazzilli

A study on ultrasound link for wireless energy transmission dedicated to deeply implanted medical devices is presented. The selection of the frequency to avoid biological side effects (e. g., cavitations), the choice of the power amplifier to drive the ext ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Fixed-order Sparse Control of Interconnected Systems with Polytopic Uncertainty

Alireza Karimi

This paper deals with the problem of sparse H-infinity dynamic output-feedback control of LTI interconnected systems with polytopic uncertainty. The main objective is to find a controller structure with minimum information exchange between subsystems and l ...

2014

Distributed Measurement of Signal Power Evolution in a Phase Sensitive Parametric Amplifier

Luc Thévenaz, Camille Sophie Brès, Marcelo Alfonso Soto Hernandez, Fatemeh Alishahi, Andrey Denisov

A method to measure the signal power evolution along phase-sensitive parametric amplifiers is proposed using Brillouin optical time-domain analysis. Different evolutions along the fiber are reported by varying input wave phases, including amplification and ...

OSA2014

Forced reattachment in separated flows: a variational approach to recirculation length reduction

François Gallaire, Edouard Boujo

Sensitivity analysis is used to design an open-loop control for separated flows. The length of the recirculation region

l_c

is expressed as a cost functional, and its sensitivity to actuation is derived analytically. This analysis allows to identify regi ...

2013

A real-time control system architecture for industrial power amplifiers

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A 2.4-GHz low complexity polar transmitter using dynamic biasing for IEEE 802.15.6

A closed-form expression for the total degradation in OFDM systems

Control strategies for a distributed active acoustic skin

Distributed digital real-time control system for TCV tokamak

Open-loop control of a separated boundary layer

Fixed-order Discrete-time LPV Controller Design

A 10.5 cm Ultrasound Link for Deep Implanted Medical Devices

Fixed-order Sparse Control of Interconnected Systems with Polytopic Uncertainty

Distributed Measurement of Signal Power Evolution in a Phase Sensitive Parametric Amplifier

Forced reattachment in separated flows: a variational approach to recirculation length reduction

Control strategies for a distributed active acoustic skin

Distributed digital real-time control system for TCV tokamak

A 2.4-GHz low complexity polar transmitter using dynamic biasing for IEEE 802.15.6

A closed-form expression for the total degradation in OFDM systems

A 10.5 cm Ultrasound Link for Deep Implanted Medical Devices

Fixed-order Discrete-time LPV Controller Design

Fixed-order Sparse Control of Interconnected Systems with Polytopic Uncertainty

Open-loop control of a separated boundary layer

Forced reattachment in separated flows: a variational approach to recirculation length reduction

Distributed Measurement of Signal Power Evolution in a Phase Sensitive Parametric Amplifier