Enhancing passive underwater localization with small mobile directional sensors using a source of opportunity [0.03%]
利用机会声源改善基于小型移动导向传感器的被动水下定位性能
Karim G Sabra,Eddy Boufarah,Davis Rider et al.
Karim G Sabra et al.
A passive self-localization method is demonstrated to relatively position underwater two towed acoustic modules (TAM) located ∼1 km apart within a few meters using only a drifting source of opportunity-a broadband acoustic pinger (1.25-1.5...
Amplitude-invariant phase masking for coherence recovery in scattered wavefields [0.03%]
散射波前相干恢复的振幅无关相位掩模法
Akshika Rohatgi,Andrey Bakulin,Sergey Fomel
Akshika Rohatgi
Coherent summation of multichannel recordings relies on phase stability across measurements. In scattered wavefields, near-surface heterogeneities introduce record-dependent phase distortions that decorrelate otherwise coherent signals and ...
Detecting continuous and discrete frequency changes as a function of spectral resolvability and modulation rate [0.03%]
基于频谱可分辨性和调制率的连续型和离散型频率变化检测方法
Penelope J Corbett,Kelly L Whiteford,Andrew J Oxenham
Penelope J Corbett
This study measured detection of frequency modulation (FM) and frequency differences in alternating tones with spectrally resolved and unresolved harmonics for modulation rates between 2 and 20 Hz. The hypotheses were that FM detection invo...
Bearings-only acoustic source localization method using two distributed gliders and deep ocean experimental validation in the South China Sea [0.03%]
基于 bearings-only 信息的深海滑翔器合作定位目标声源方法及南海实验验证
Zihao Zhou,Yang Shi,Yixin Yang et al.
Zihao Zhou et al.
Passive acoustic localization using distributed mobile underwater sensor networks has emerged as an important research subject. This paper presents a bearings-only localization method for two distributed gliders equipped with conformal unif...
Block-sparse enhancement and detection of envelope modulation on noise for ship radiated noise [0.03%]
基于噪声的Envelope调幅包络稀疏增强及检测方法研究船舶辐射噪声中的超低信噪比信号探测问题
Ge Yu,Mingxun Liu,Yanli Chen
Ge Yu
Underwater target recognition is essential for ocean monitoring, with ship radiated noise analysis being a fundamental technique. This paper proposes a detection method based on block sparse enhancement. A harmonic dictionary is constructed...
Predicting acoustic field with a separate variable ocean physics-informed neural network [0.03%]
基于分离变量海洋物理的声场预测信息神经网络
Yong Ding,Peng Xiao,Bo Zhao et al.
Yong Ding et al.
High-frequency underwater acoustic field modeling is challenging for physics-informed neural networks (PINNs) due to the strongly oscillatory nature of acoustic pressure fields. Building upon the OceanPINN framework, this paper proposes a s...
Extending Sottek Hearing Model loudness to estimate partially-masked sound qualities of loudness, tonality, and sharpness [0.03%]
扩展Sottek响度模型以估计部分被掩蔽声音的响度、音调和尖锐度属性
Michael J B Lotinga,Matt Torjussen,Marc C Green et al.
Michael J B Lotinga et al.
The Sottek Hearing Model provides a means to analyse perceptual sound qualities including loudness, tonality, roughness, and fluctuation strength. An extension to the loudness algorithms is described, which addresses cases in which a source...
MRI and acoustic study of angry screaming versus trained belting with vocal health implications [0.03%]
磁共振和声学研究愤怒的尖叫与训练有素的 belts 对声音健康的影响及相关性研究
Karen Perta,Zhaoyan Zhang,Donna Erickson et al.
Karen Perta et al.
Intense vocalizations, such as screaming and yelling, may yield negative vocal health consequences. The purpose of this study was to investigate physiological and acoustic differences between emotional versus learned high-intensity voice pr...
Nicholas Mehlman,Shrikanth Narayanan
Nicholas Mehlman
We demonstrate that speaker verification models are amenable to the creation of "ghost speakers." In particular, we devise a model poisoning method based on contrastive learning that causes the system to perform very poorly for a specific i...
Imaging vocal fold medial surface vibration across chest, head, whistle, and creaky voice production using optical coherence tomography: A single subject study [0.03%]
运用光学 coherence 横断层扫描技术成像声带内表面的振动：一次针对不同音域发声的研究
Zhaoyan Zhang,Anna Wisniowiecki,Melissa Treinkman et al.
Zhaoyan Zhang et al.
This single-subject study used optical coherence tomography to image medial surface vibratory patterns during the production of chest, head, whistle, and creaky voice. Chest and head registers differed in medial surface thickness, with the ...