C.D. Llorens

Acoustic Parametric Signal Generation for Underwater Communication

María Campo-Valera, M. Ardid, D. Diego-Tortosa, I. Felis et autres

This paper presents a study of different types of parametric signals with application to underwater acoustic communications. In all the signals, the carrier frequency is 200 kHz, which corresponds to the resonance frequency of the transducer under study and different modulations are …

es (code pays fourni par la source)

Acoustic Parametric Signal Generation for Underwater Communication

María Campo-Valera, M. Ardid, D. Diego-Tortosa, I. Felis et autres

This paper presents a study of different types of parametric signals with application to underwater acoustic communications. In all the signals, the carrier frequency is 200 kHz, which corresponds to the resonance frequency of the transducer under study and different modulations are …

es (code pays fourni par la source)

Underwater Communication Using Acoustic Parametric Arrays

M. Ardid, María Campo-Valera, D. Diego-Tortosa, I. Felis et autres

This paper presents a study of different types of parametric signals with application to submarine acoustic telecommunications. In all of them, the carrier frequency is 200 kHz, which corresponds to that resonation of the transducer under study, while they differ by the …

es (code pays fourni par la source)

Transducer Development and Characterization for Underwater Acoustic Neutrino Detection Calibration

María Saldaña, C.D. Llorens, I. Felis, J. A. Martínez-Mora et autres

A short bipolar pressure pulse with "pancake" directivity is produced and propagated when an Ultra-High Energy (UHE) neutrino interacts with a nucleus in water. Nowadays, acoustic sensor networks are being deployed in deep seas to detect this phenomenon as a first step …

es (code pays fourni par la source)

A compact array calibrator to study the feasibility of acoustic neutrino detection

M. Ardid, Francisco Camarena, I. Felis, Alicia Herrero et autres

Underwater acoustic detection of ultra-high-energy neutrinos was proposed already in 1950s: when a neutrino interacts with a nucleus in water, the resulting particle cascade produces a pressure pulse that has a bipolar temporal structure and propagates within a flat disk-like volume. A …

es (code pays fourni par la source)

New design of an acoustic array calibrator for underwater neutrino telescopes

María Saldaña, C.D. Llorens, I. Felis, J. A. Martínez-Mora

A short bipolar pressure pulse with ‘pancake’ directivity is produced and propagated when an Ultra-High Energy (UHE) neutrino interacts with a nucleus in water. Nowadays, several acoustic sensors are deployed in deep sea trying to detect the phenomena as first step to …

es (code pays fourni par la source)

Acoustic signal detection through the cross-correlation method in experiments with different signal to noise ratio and reverberation conditions

S. Adrián-Martínez, M. Ardid, M. Bou-Cabo, I. Felis et autres

The study and application of signal detection techniques based on cross-correlation method for acoustic transient signals in noisy and reverberant environments are presented. These techniques are shown to provide high signal to noise ratio, good signal discernment from very close echoes and …

Ultrasonic Transmitter for Positioning of the Large Underwater Neutrino Telescope KM3NeT

M. Saldaña, S. Adrián-Martínez, M. Bou-Cabo, I. Felis et autres

Underwater ultrasonic transducers are commonly used for marine applications including communication and positioning systems. In this work, an ultrasonic transmitter transducer developed for the very large underwater neutrino telescope KM3NeT positioning is presented. The telescope infrastructure will have some degree of motion …

es (code pays fourni par la source)

Acoustic Signal Detection Through the Cross-Correlation Method in Experiments with Different Signal to Noise Ratio and Reverberation Conditions

S. Adrián-Martínez, M. Bou-Cabo, I. Felis, C.D. Llorens et autres

es (code pays fourni par la source)

A versatile compact array calibrator for UHE neutrino acoustic detection

S. Adrián-Martínez, M. Ardid, M. Bou-Cabo, I. Felis et autres

In situ acoustic calibration devices are necessary to assure the optimal performance of sensors and detectors for the acoustic detection of ultra-high energy neutrinos in underwater telescopes. Moreover, they provide evidences for the feasibility evaluation of the technique and for the determination …

es (code pays fourni par la source)

Development of an acoustic transceiver for the KM3NeT positioning system

G. Larosa, M. Ardid, C.D. Llorens, M. Bou-Cabo et autres

NEMO-SMO acoustic array: A deep-sea test of a novel acoustic positioning system for a km3-scale underwater neutrino telescope

S. Viola, M. Ardid, V. Bertin, A. Enzenhöfer et autres

it, fr (code pays fourni par la source)