Results 21 to 30 of about 5,216 (194)

ACGAN-Based Multi-Target Elevation Estimation with Vector Sensor Arrays in Low-SNR Environments [PDF]

open access: yesSensors
To mitigate the reduced accuracy of direction-of-arrival (DOA) estimation in scenarios with low signal-to-noise ratios (SNR) and multiple interfering sources, this paper proposes an Auxiliary Classifier Generative Adversarial Network (ACGAN) architecture
Biao Wang, Ning Shi, Yangyang Xie
doaj   +2 more sources

Design and Implementation of a Composite Hydrophone of Sound Pressure and Sound Pressure Gradient

open access: yesMicromachines, 2021
The bionic cilium MEMS vector hydrophone has the characteristics of low power consumption, small volume, and good low-frequency response. Nevertheless, there exists the problem of left–right ambiguity in the azimuth estimation of a single hydrophone.
Guojun Zhang   +6 more
doaj   +1 more source

Design and Simulation of Flexible Underwater Acoustic Sensor Based on 3D Buckling Structure

open access: yesMicromachines, 2021
The exploration of marine resources has become an essential part of the development of marine strategies of various countries. MEMS vector hydrophone has great application value in the exploration of marine resources.
Guochang Liu   +8 more
doaj   +1 more source

Three-dimensional acoustic vector field model using Gaussian beam tracing [PDF]

open access: yesJASA Express Letters, 2023
A three-dimensional acoustic vector field model was developed using Gaussian beam tracing. The field at any location is computed by coherently summing all contributing beams, where the beam equation of particle velocity depends only on beam width and ...
Yuchen Chen, Minghui Zhang, Lijia Gong
doaj   +1 more source

Nonlinear time-warping made simple: a step-by-step tutorial on underwater acoustic modal separation with a single hydrophone [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Bonnel, J., Thode, A., Wright, D., & Chapman, R.
Bonnel, Julien   +3 more
core   +1 more source

A miniaturized acoustic vector sensor with PIN-PMN-PT single crystal cantilever beam accelerometers

open access: yesActa Acustica, 2020
Directional sound detection using vector sensors rather than large hydrophone arrays is highly advantageous for target detection in SONAR. However, developing highly sensitive and compact vector sensors for use in a system whose size is limited has been ...
Cho Yohan, Je Yub, Jeong Weui-Bong
doaj   +1 more source

Properties of the Acoustic Vector Field near the Underwater Planar Cavity Baffle and Its Application

open access: yesJournal 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

Development and testing of a dual accelerometer vector sensor for AUV acoustic surveys [PDF]

open access: yes, 2017
This paper presents the design, manufacturing and testing of a Dual Accelerometer Vector Sensor (DAVS). The device was built within the activities of theWiMUST project, supported under the Horizon 2020 Framework Programme, which aims to improve the ...
Agni Mantouka   +10 more
core   +1 more source

A Monolithic Integration Bio-Inspired Three-Dimensional MEMS Vector Hydrophone

open access: yesIEEE Access, 2019
Three-dimensional vector hydrophone plays an important role in underwater spatial location. In order to solve the problems of monolithic integration and linearity of previous three-dimensional vector hydrophones, a three-dimensional micro-electro ...
Jinlong Song   +5 more
doaj   +1 more source

Dynamic Response of Suspended Underwater Systems [PDF]

open access: yes, 1972
A method is presented for analyzing the steady-state or stationary random heave response of suspended underwater systems. The nonlinear continuous system is replaced by a discretized pseudolinear system by means of an equation difference minimization ...
Iwan, Wilfred D.
core   +1 more source

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