Results 51 to 60 of about 4,788,429 (284)
Bayesian Fusion Based Robust Array Shape Estimation for Distorted Towed Hydrophone Array
Journal of Marine Science and EngineeringTowed hydrophone arrays are widely employed for underwater target detection and direction-of-arrival (DOA) estimation. However, array shape distortion induced by ocean currents, internal waves, and platform maneuvers severely degrades beamforming ...
Chuanqi Zhu +3 more
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Sensors, 2018 In active sonar systems, the target echoes are usually equivalent to a superposition of the Doppler-scaled reflections from multiple highlights. The reflections overlap with each other both in the time and frequency domain, which results in a decreased ...
Shuxia Huang, Shiliang Fang, Ning Han
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Advanced Engineering Materials, EarlyView.An explicit constitutive reconstruction framework enables accurate tensile characterization of miniaturized additively manufactured specimens using only the grip‐to‐grip displacement measurements. Progressive validation through self‐consistency, analytical comparison, and inverse finite element method (iFEM) benchmarking demonstrates constitutive ...
Junqing Leng +4 more
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Entropy, 2019 Since digital communication signals are widely used in radio and underwater acoustic systems, the modulation classification of these signals has become increasingly significant in various military and civilian applications.
Yangjie Wei, Shiliang Fang, Xiaoyan Wang
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Graph Convolutional Network Surrogate Model for Mesh-Based Structure-Borne Noise Simulation
Applied Sciences, 2023 This study presents a unique method of building a surrogate model using a graph convolutional network (GCN) for mesh-based structure-borne noise analysis of a fluid–structure coupled system.
Sang-Yun Lee, Sang-Kwon Lee
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Spatial Acoustic Signal Processing
, 2012 A sound field on a line or in a plane has an effectively limited spatial bandwidth determined by the temporal frequency. Similar can be said for sound fields from far-field sources when analyzed on circular and spherical apertures. Namely, for a given frequency and aperture size, a sound field is effectively composed of a finite number of circular or ...
openaire +2 more sources
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
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Active Noise Control over Space: A Subspace Method for Performance Analysis
Applied Sciences, 2019 In this paper, we investigate the maximum active noise control performance over a three-dimensional (3-D) spatial space, for a given set of secondary sources in a particular environment.
Jihui Zhang +3 more
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An Underwater Acoustic Target Recognition Method Based on Restricted Boltzmann Machine
Sensors, 2020 This article focuses on an underwater acoustic target recognition method based on target radiated noise. The difficulty of underwater acoustic target recognition is mainly the extraction of effective classification features and pattern classification ...
Xinwei Luo, Yulin Feng
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Particle-Velocity-Based Mixed-Source Sound Field Translation for Binaural Reproduction
Applied Sciences, 2023 Following the rise of virtual reality is a demand for sound field reproduction techniques that allow the user to interact and move within acoustic reproductions with six-degrees-of-freedom.
Huanyu Zuo +4 more
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