Publications related to Reflection coefficient

Electroacoustic absorbers for the low-frequency modal equalization of a room: what is the optimal target impedance for maximum modal damping, depending on the total area of absorbers?

Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Sami Driss Karkar, Véronique Adam

Electroacoustic absorbers consist of loudspeakers, shunted with an electrical circuit designed to obtain a given acoustic impedance. Their design and principles are now well understood. Unidimensional experiments, using plane waves under normal incidence i ...

2014

Structured Sparsity Models for Reverberant Speech Separation

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei, Mohammad Golbabaee

We tackle the multi-party speech recovery problem through modeling the acoustic of the reverberant chambers. Our approach exploits structured sparsity models to perform room modeling and speech recovery. We propose a scheme for characterizing the room acou ...

2014

Wideband generation of pulses in dual-pump optical parametric amplifier: theory and experiment

Camille Sophie Brès, Mohammad Amin Shoaie, Amirhossein Mohajerin Ariaei

The generation of pulses in dual-pump fiber optical parametric amplifier is investigated. Theoretically, it is shown that in an analogical manner to pulse generation in single-pump fiber optical parametric amplifiers, the generated pulse shape depends on t ...

Optical Society of America2014

Dynamic response of a rock fracture filled with viscoelastic materials

Jian Zhao, Wei Wu, Jianbo Zhu

Rock fractures filled with viscoelastic materials, such as sand, usually contribute to rock mass instability under the influence of seismic waves and dynamic loads. The purpose of this study is to verify that the specific fracture stiffness and the specifi ...

Elsevier2013

A further study on seismic response of a set of parallel rock fractures filled with viscoelastic materials

Jian Zhao, Wei Wu, Jianbo Zhu

The purpose of this study is to further investigate the seismic response of a set of parallel rock fractures filled with viscoelastic materials, following the work by Zhu et al. Dry quartz sands are used to represent the viscoelastic materials. The split H ...

Wiley-Blackwell2013

Design and comparison of class-C and class-D power amplifiers for remotely powered systems

Catherine Dehollain, Enver Gürhan Kilinç, Kerim Türe, Franco Maloberti

This paper presents the effect of coupling between the coils on the power amplifier efficiency and comparisons between the class-C and class-D performance for different coupling conditions. In remotely powered systems, the coupling of the coils can influen ...

2013

Unit Cell for Frequency-Tunable Beamscanning Reflectarrays

Julien Perruisseau-Carrier, Daniel Rodrigo Lopez

A reflectarray cell able to dynamically control the reflection phase at a variable frequency is presented. This capability enables beam-scanning reflectarrays with frequency reconfigurability, which is a novel capability with applications in frequency-hopp ...

Institute of Electrical and Electronics Engineers2013

Empirical Study of Noise Dependence in Electrochemical Sensors

Giovanni De Micheli, Sandro Carrara, Seyedeh Sara Ghoreishizadeh

We report the experimental study of noise in electrochemical biosensors as related to voltage and concentration. A comparison with experiments is performed for H2O2 and Ferrocyanide with bare sensors and with sensors functionalized wi ...

2013

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Reflection coefficient

Electroacoustic absorbers for the low-frequency modal equalization of a room: what is the optimal target impedance for maximum modal damping, depending on the total area of absorbers?

Structured Sparsity Models for Reverberant Speech Separation

Wideband generation of pulses in dual-pump optical parametric amplifier: theory and experiment

Dynamic response of a rock fracture filled with viscoelastic materials

Electromagnetic Simulation of CERN Accelerator Components and Experimental Applications

A further study on seismic response of a set of parallel rock fractures filled with viscoelastic materials

Design and comparison of class-C and class-D power amplifiers for remotely powered systems

Unit Cell for Frequency-Tunable Beamscanning Reflectarrays

Obliquely incident wave propagation across rock joints with virtual wave source method

Empirical Study of Noise Dependence in Electrochemical Sensors

Graph Chatbot

Chat with Graph Search

Structured Sparsity Models for Reverberant Speech Separation

Empirical Study of Noise Dependence in Electrochemical Sensors

Unit Cell for Frequency-Tunable Beamscanning Reflectarrays

Design and comparison of class-C and class-D power amplifiers for remotely powered systems

Wideband generation of pulses in dual-pump optical parametric amplifier: theory and experiment

Electroacoustic absorbers for the low-frequency modal equalization of a room: what is the optimal target impedance for maximum modal damping, depending on the total area of absorbers?

A further study on seismic response of a set of parallel rock fractures filled with viscoelastic materials

Dynamic response of a rock fracture filled with viscoelastic materials

Electromagnetic Simulation of CERN Accelerator Components and Experimental Applications

Obliquely incident wave propagation across rock joints with virtual wave source method