Weathering the storm: developments in the acoustic sensing of wind and rain [PDF]
, 2003 An Acoustic Rain Gauge (ARG) analyses the underwater sound levels across a wide frequency range, classifies the observed spectrum according to likely source and then determines the local wind speed or rain rate as appropriate. Thispaper covers a trial on
Guymer, Trevor H. +5 more
core +2 more sources
Modified Green's Functions for Shallow Water Acoustic Wave Propagation [PDF]
, 2004 This article presents an assessment of alternative forms of the Green’s function for boundary element simulations of acoustic wave propagation in shallow water. It is assumed that the problem is two-dimensional, the source of acoustic disturbance is time-
Santiago, J A F S, Wrobel, L C
core +1 more source
Time Reversal Acoustic Communication Using Filtered Multitone Modulation
Sensors, 2015 The multipath spread in underwater acoustic channels is severe and, therefore, when the symbol rate of the time reversal (TR) acoustic communication using single-carrier (SC) modulation is high, the large intersymbol interference (ISI) span caused by ...
Lin Sun +4 more
doaj +1 more source
Underwater Channel Characterization to Design Wireless Sensor Network by Bellhop [PDF]
, 2016 Acoustic underwater link due to low attenuation is employed for underwater sensor network (UWSN). Due to water changing physical properties and different environmental conditions, the sound propagation for every underwater channel are different.
Bahrami, Nima; Universiti Teknologi Malaysia +3 more
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Low-Cost Fiber Optic Cantilever Accelerometer With a Spherical Tip Based on Gaussian Beam Focusing
IEEE Photonics Journal, 2021 We propose and demonstrate a low-cost and simple fiber optic cantilever accelerometer with a spherical tip based on Gaussian beam focusing. The accelerometer consists of ceramic ferrule, ceramic sleeve, receiving fiber and emitting fiber, where both ...
Lianjin Hong +3 more
doaj +1 more source
Applied Sciences, 2021 In the non-free-field, with the effect of reflection sounds from the reflection boundary, the vibration character of a submerged structure often changes, which may have significant influences on the measurement system configurations.
Wenbo Wang, Desen Yang, Jie Shi
doaj +1 more source
Environmental-friendly underwater acoustic communication and networks [PDF]
, 2012 Intense harvesting of ocean resources extended exploitation activities to previously unexplored open ocean areas, to greater ocean depths and to remote polar regions. Such activities include, but are not limited to, energy, geology and fisheries.
Jesus, S. M.
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Properties of the Acoustic Vector Field near the Underwater Planar Cavity Baffle and Its Application
Journal of Marine Science and Engineering, 2022 In order to apply the acoustic vector hydrophone on a ship, the properties of the acoustic vector field near the underwater planar cavity baffle are studied based on the Euler description and Lagrange description.
Hongyue Chen, Zhongrui Zhu, Desen Yang
doaj +1 more source
Design and Development of an acoustic positioning system for a cubic kilometre underwater neutrino telescope [PDF]
, 2012 En los últimos años los telescopios submarinos de neutrinos han cobrado una mayor importancia ya que consisten en un nuevo y único instrumento para observar el Universo.
Larosa ., Giuseppina
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ADOS-CFAR Algorithm for Multibeam Seafloor Terrain Detection
International Journal of Distributed Sensor Networks, 2016 To solve the false terrain problem caused by the tunnel effect in the conventional multibeam seafloor terrain detection, a detection method of multibeam seafloor terrain based on the ADOS-CFAR (Amplitude Dichotomy Order-Statistics Constant False Alarm ...
Weidong Du +4 more
doaj +1 more source