Publications associées à Compression d'impulsion

Reconfigurable radiofrequency filters based on versatile soliton microcombs

Tobias Kippenberg, Camille Sophie Brès, Jianqi Hu, Junqiu Liu, Maxim Karpov, Arslan Sajid Raja, Jijun He, Anton Lukashchuk

The rapidly maturing integrated Kerr microcombs show significant potential for microwave photonics. Yet, state-of-the-art microcomb-based radiofrequency filters have required programmable pulse shapers, which inevitably increase the system cost, footprint, ...

2020

Massively parallel coherent laser ranging using a soliton microcomb

Tobias Kippenberg, Junqiu Liu, Maxim Karpov, Erwan Guillaume Albert Lucas, Wenle Weng, Anton Lukashchuk

Coherent ranging, also known as frequency-modulated continuous-wave (FMCW) laser-based light detection and ranging (lidar)(1) is used for long-range three-dimensional distance and velocimetry in autonomous driving(2,3). FMCW lidar maps distance to frequenc ...

NATURE PUBLISHING GROUP2020

Pulses in Upward Negative Lightning at the Säntis Tower in Northeastern Switzerland

Marcos Rubinstein, Mohammad Azadifar, Davide Pavanello, Lixia He

Upward lightning happens predominantly from tall objects. The channel-base currents associated with upward negative lightning initiated from towers exhibit pulses that can be classified, based on their waveform features and on the concurrence with other pr ...

2019

Photon detecting 3d imaging sensor device

Edoardo Charbon, Preethi Padmanabhan, Augusto Ronchini Ximenes

The invention relates to a photon detecting 3D imaging sensor device for detecting a distance information for pixels in an image, comprising: - an array of detector units, wherein each detector unit is configured to receive a light signal pulse and to prov ...

2019

Combined Optical and Electrical Spectrum Shaping for High-Baud-Rate Nyquist-WDM Transceivers

Camille Sophie Brès

We discuss the benefits and limitations of optical time-division multiplexing (OTDM) techniques based on the optical generation of a periodic train of sinc pulses for wavelength-division multiplexing (WDM) transmission at high baud rates. It is shown how t ...

Ieee-Inst Electrical Electronics Engineers Inc2016

In vivo evaluation of a novel 'diastole-patching' algorithm for the estimation of pulse transit time: advancing the precision in pulse wave velocity measurement

Nikolaos Stergiopoulos, Orestis Vardoulis

Carotid-to-femoral pulse wave velocity (PWV) is the gold standard for the assessment of aortic stiffness. It is calculated by the ratio of pulse transit time (PTT) between two arterial sites and the distance between them. The precision of PTT estimation de ...

Institute of Physics2015

Modelling the effect of fluctuating herbicide concentrations on algae growth

Sylvain Coutu, Pierre-Jean Copin

Herbicide concentrations fluctuate widely in watercourses after crop applications and rain events. The level of concentrations in pulses can exceed the water chronic quality criteria. In the present study, we proposed modelling the effects of successive pu ...

Elsevier2015

A Versatile 1.4-mW 6-bits CMOS ADC for Pulse-Based UWB Communication Systems

Pierre-André Farine, Cyril Botteron, Christian Robert, Frédéric Chastellain, Saeed Ghamari

An Analog to Digital Converter (ADC) using the low duty-cycle nature of pulse-based Ultra Wide-Band (UWB) communications to reduce its power consumption is proposed. Implemented in CMOS 180 nm technology, it can capture a 5 ns window at 4 GS/s each 100 ns, ...

2014

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Compression d'impulsion

Reconfigurable radiofrequency filters based on versatile soliton microcombs

Massively parallel coherent laser ranging using a soliton microcomb

Pulses in Upward Negative Lightning at the Säntis Tower in Northeastern Switzerland

Photon detecting 3d imaging sensor device

Combined Optical and Electrical Spectrum Shaping for High-Baud-Rate Nyquist-WDM Transceivers

Optical Signal Processing and Pulse Shaping for Wavelength Multiplexed High Speed Communication Systems

In vivo evaluation of a novel 'diastole-patching' algorithm for the estimation of pulse transit time: advancing the precision in pulse wave velocity measurement

Modelling the effect of fluctuating herbicide concentrations on algae growth

Design of efficient single-stage chirped pulse difference frequency generation at 7 μm, driven by a dual wavelength Ti:sapphire laser

A Versatile 1.4-mW 6-bits CMOS ADC for Pulse-Based UWB Communication Systems

Graph Chatbot

Chattez avec Graph Search

Pulses in Upward Negative Lightning at the Säntis Tower in Northeastern Switzerland

Photon detecting 3d imaging sensor device

Design of efficient single-stage chirped pulse difference frequency generation at 7 μm, driven by a dual wavelength Ti:sapphire laser

Reconfigurable radiofrequency filters based on versatile soliton microcombs

Combined Optical and Electrical Spectrum Shaping for High-Baud-Rate Nyquist-WDM Transceivers

Optical Signal Processing and Pulse Shaping for Wavelength Multiplexed High Speed Communication Systems

A Versatile 1.4-mW 6-bits CMOS ADC for Pulse-Based UWB Communication Systems

In vivo evaluation of a novel 'diastole-patching' algorithm for the estimation of pulse transit time: advancing the precision in pulse wave velocity measurement

Modelling the effect of fluctuating herbicide concentrations on algae growth

Massively parallel coherent laser ranging using a soliton microcomb