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Browsing by Author "Miralles Ricós, Ramón"

Now showing items 1-20 of 31

A Risk-Based Model Using Communication Distance Reduction for the Assessment of Underwater Continuous Noise: An Application to the Bottlenose Dolphin (Tursiops truncatus) Inhabiting the Spanish North Atlantic Marine Demarcation

Bou-Cabo, Manuel; Lara, Guillermo; Gutiérrez-Muñoz, Paula; Saavedra, C.; Miralles Ricós, Ramón; Espinosa Roselló, Víctor (MDPI AG, 2022-05)

[EN] Over the last decade, national authorities and European administrations have made great efforts to establish methodological standards for the assessment of underwater continuous noise, especially under the requirements ...
Aplicación de Técnicas de Procesado de Señal para la Detección de Cuerpos Extraños en Materiales

Nieto Juan, Patricia (Universitat Politècnica de València, 2014-04-15)

Analysis and programming of several algorithms which allow non-destructive test using ultrasound in order to detect flaws in high grain noise presence environment.
Application of non-destructive evaluation and signal processing for diagnosis of historic heritage buildings

Gosálbez Castillo, Jorge; Salazar Afanador, Addisson; Safont Armero, Gonzalo; Bosch Roig, Ignacio; Miralles Ricós, Ramón; Vergara Domínguez, Luís; Albert Pérez, Vicente (Instituto de Telecomunicaciones y Aplicaciones Multimedia (ITEAM), 2011)

[EN] In this work, signal processing techniques are combined with non-destructive evaluation (NDE) to evaluate the capability for detecting defects in historic walls. To join this aim, ashlar masonry walls of 3x2x0.2m ...
Assessment of Arrow-of-Time Metrics for the Characterization of Underwater Explosions

Miralles Ricós, Ramón; Lara, Guillermo; CARRIÓN GARCÍA, ALICIA; Bou-Cabo, Manuel (MDPI AG, 2021-09)

[EN] Anthropogenic impulsive sound sources with high intensity are a threat to marine life and it is crucial to keep them under control to preserve the biodiversity of marine ecosystems. Underwater explosions are one of ...
Automatic Detection and Classification of Beluga Whale Vocalizations

Miralles Ricós, Ramón; Lara Martínez, Guillermo-Fernán; Carrión García, Alicia; Esteban, Jose Antonio (Science and Engineering Publishing Company, 2013-05)

[EN] In this work, an algorithm has been proposed for real time detection and classification of beluga whale calls. The detection algorithm is based on an adaptive activity detector that exploits a priori knowledge of the ...
Calibración de un sistema acústico pasivo para el seguimiento del descriptor 11 de la Directiva Europea de Estrategia Marina

Arques Carbonell, Rafael Enrique (Universitat Politècnica de València, 2017-10-25)

La directiva de estrategia marina establece, mediante la decisión 2010/477/UE, que los estados miembros deben evaluar el buen estado ambiental de sus mares en base a once indicadores o descriptores, y que esa evaluación ...
Caracterización y modelado de la producción de sonidos de las ballenas beluga (Delphinapterus Leucas) basado en modelos de análisis / síntesis de voz

Lara Martínez, Guillermo-Fernán (Universitat Politècnica de València, 2016-11-28)

[EN] This thesis deals with the study of the sounds produced by beluga whales (Delphinapterus leucas) with a fundamental objective: its characterization and modeling. To this end, analysis / synthesis algorithms of the ...
Characterization of the complexity in short oscillating time series: An application to seismic airgun detonations

Miralles Ricós, Ramón; Carrión García, Alicia; Looney, D.; Lara Martínez, Guillermo-Fernán; D. Mandic (Acoustical Society of America, 2015-09)

Extracting frequency-derived parameters allows for the identification and characterization of acoustic events, such as those obtained in passive acoustic monitoring applications. Situations where it is difficult to achieve ...
Descriptores Geométricos y de Forma: Aplicación a la caracterización ultrasónica de materiales

Gómez García, Soledad (Universitat Politècnica de València, 2010-11-02)

Entre otras aplicaciones, el Grupo de Tratamiento de Señal (GTS) de la Universidad Politécnica de Valencia ha trabajado tradicionalmente en el campo de los ensayos no destructivos por ultrasonidos. el GTS ha desarrollado ...
Design and Application of a Passive Acoustic Monitoring System in the Spanish Implementation of the Marine Strategy Framework Directive

Lara, Guillermo; Bou-Cabo, Manuel; Esteban, José Antonio; Espinosa Roselló, Víctor; Miralles Ricós, Ramón (MDPI, 2019-11-30)

[EN] A passive acoustic monitoring (PAM) device named SAMARUC has been developed to acquire underwater sounds following the specifications of the Monitoring Guidance for Underwater Noise in European Seas: Monitoring Guidance ...
Detección robusta de silbidos de delfines en presencia de ruido

Wang, Dizhi (Universitat Politècnica de València, 2020-10-19)

[ES] La presencia de ruido producido por el hombre en el medio ambiente marino se ha incrementando junto con la expansión en la navegación, la explotación de gas y petróleo, el desarrollo de infraestructuras, etc. Todos ...
Detección y clasificación automática de los sonidos producidos por cetáceos aplicada al control de su bienestar

Lara Martínez, Guillermo-Fernán (Universitat Politècnica de València, 2013-09-11)

[ES] Este trabajo trata de proporcionar a los biólogos del Oceanográfico de Valencia una herramienta capaz de detectar y clasificar en tiempo real los sonidos (vocalizaciones) producidos por las ballenas beluga. A partir ...
Extracting dolphin whistles in complex acoustic scenarios: a case study in the Bay of Biscay

Miralles Ricós, Ramón; Gallardo-Llopis, Carles; Lara Martínez, Guillermo-Fernan; Bou Cabo, Manuel (Taylor & Francis, 2024-05-03)

[EN] Accurate whistle contour extraction is crucial in many dolphin behavioural studies. Traditionally, whistle contour extraction involves a first step of finding whistle candidates by peak-level detection in the ...
Improved visualization of large temporal series for the evaluation of good environmental status

Miralles Ricós, Ramón; Lara Martínez, Guillermo-Fernan; Gosálbez Castillo, Jorge; Bosch Roig, Ignacio; León Fernández, Antonio (Elsevier, 2019-05)

[EN] Passive acoustic monitoring of underwater sounds is an emerging discipline that can be used to guarantee that anthropogenic noise meets acceptable limits, to detect the presence of cetacean species, and to ensure ...
Machine learning techniques (including deep learning) for identification and tracking of marine mammal sounds

Wang, Shuojie (Universitat Politècnica de València, 2022-05-10)

[ES] Los sistemas de monitorización acústica pasiva se emplean para investigar las distribuciones estacionales y espaciales de diferentes especies de mamíferos marinos, así como el efecto negativo que las fuentes antropogénicas ...
Measuring Predictability in Ultrasonic Signals: An Application to Scattering Material Characterization

Carrión García, Alicia; Miralles Ricós, Ramón; Lara Martínez, Guillermo-Fernán (Elsevier, 2014-09)

[EN] In this paper, we present a novel and completely different approach to the problem of scattering material characterization: measuring the degree of predictability of the time series. Measuring predictability can provide ...
Medida del determinismo en señales de inspección ultrasónica para la caracterización de materiales dispersivos

Carrión García, Alicia (Universitat Politècnica de València, 2015-01-21)

Este trabajo presenta un nuevo enfoque en el problema de la caracterización de materiales dispersivos: la medida del grado de determinismo en señales de inspección ultrasónica. La medida del nivel de determinismo puede dar ...
New analysis and extensions of split-spectrum processing algorithms

Rodríguez, A.; Miralles Ricós, Ramón; Bosch Roig, Ignacio; Vergara Domínguez, Luís (ELSEVIER SCI LTD, 2012-01)

[EN] In this paper we compare the performances of different variants of split-spectrum algorithms and propose some new extensions based on the use of variable bandwidth filters equally spaced in frequency and energy gain ...
New Insights into the Design and Application of a Passive Acoustic Monitoring System for the Assessment of the Good Environmental Status in Spanish Marine Waters

Lara Martínez, Guillermo-Fernan; Miralles Ricós, Ramón; Bou-Cabo, Manuel; Esteban, José Antonio; Espinosa Roselló, Víctor (MDPI AG, 2020-09)

[EN] Passive acoustic monitoring systems allow for non-invasive monitoring of underwater species and anthropogenic noise. One of these systems has been developed keeping in mind the need to create a user-friendly tool to ...
Optimized ultrasonic attenuation measures for non-homogeneous materials

Genovés Gómez, Vicente; Gosálbez Castillo, Jorge; Carrión García, Alicia; Miralles Ricós, Ramón; Paya Bernabeu, Jorge Juan (Elsevier, 2016-02)

In this paper the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous materials is addressed. To determine the attenuation accurately over a wide frequency range, it is necessary to have suitable ...