Acoustical Physics最新文献

Influence of Weightlessness on Vocal Source Parameters 失重对声源参数的影响

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600944

V. N. Sorokin, A. S. Leonov, D. N. Rulev, E. V. Prokopyev

引用次数: 0

Study of Frequency Dependence of Hysteretic Nonlinearity of Sandstone 砂岩滞回非线性的频率依赖性研究

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600452

A. V. Lebedev, S. A. Manakov, V. V. Kazakov

引用次数: 0

An Efficient Algorithm for Constructing Discontinuous Solutions to the Hopf Equation in Simulating a Sonic Boom 音爆模拟中构造Hopf方程不连续解的一种有效算法

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600798

E. A. Beltikov, R. V. Galev, A. N. Kudryavtsev, A. V. Lazarev, I. V. Menshchikova, I. S. Miskov

引用次数: 0

Experimental Studies of Underwater and Airborne Noise of Hovercraft in the Ural River Estuary 乌拉尔河河口气垫船水下与空气噪声试验研究

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600713

A. I. Vedenev, O. Yu. Kochetov, A. A. Lunkov, A. S. Shurup

{"title":"Experimental Studies of Underwater and Airborne Noise of Hovercraft in the Ural River Estuary","authors":"A. I. Vedenev, O. Yu. Kochetov, A. A. Lunkov, A. S. Shurup","doi":"10.1134/S1063771026600713","DOIUrl":"10.1134/S1063771026600713","url":null,"abstract":"In an ecologically sensitive region—the Ural River Delta Nature Reserve near the Caspian Sea shelf—simultaneous measurements of underwater and airborne noise from a Griffon BHT130 hovercraft were conducted. The measurements were designed to assess the potential negative impact of hovercraft noise on the fish and birds of the reserve. In addition to determining sound pressure levels, a gradient-type vector receiver, formed by four spatially spaced hydrophones, was used to estimate the absolute particle velocity levels of underwater noise. Such measurements are an important part of underwater noise research, as a significant proportion of fish perceive sound as particle vibrations. Simultaneous recording of underwater and airborne noise allowed us to evaluate their mutual correlation. The resulting correlation between the underwater and airborne noise levels from the hovercraft can be used to simplify the estimation of the upper limit of underwater noise based on the measured airborne noise levels. The measured and estimated maximum underwater noise levels of the hovercraft were significantly lower than those of conventional submersible motor-driven vessels, making the hovercraft an attractive alternative for operation in areas with particularly high requirements for permissible levels of anthropogenic noise impact in the aquatic environment.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 2","pages":"240 - 248"},"PeriodicalIF":0.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical Realization of a Perfectly Matched Layer (PML) at the Open End of a Waveguide and a Dispersionless Interference PML Antenna 波导开放端完美匹配层和无色散干扰PML天线的物理实现

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600889

A. O. Subbotkin, A. V. Shanin

引用次数: 0

Application of Convolutional Neural Networks Using Multitaper Processing to Acoustic Signal Classification Problems for River Navigation 基于多锥度处理的卷积神经网络在河道航行声信号分类中的应用

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771025601025

A. S. Polyakov, P. I. Korotin, D. A. Kosteev, D. D. Razumov, R. V. Travin

{"title":"Application of Convolutional Neural Networks Using Multitaper Processing to Acoustic Signal Classification Problems for River Navigation","authors":"A. S. Polyakov, P. I. Korotin, D. A. Kosteev, D. D. Razumov, R. V. Travin","doi":"10.1134/S1063771025601025","DOIUrl":"10.1134/S1063771025601025","url":null,"abstract":"Sound source identification based on the temporal realization of the signal is a pressing problem for various practical applications, ranging from speech recognition to vibration defect diagnostics. This paper proposes a classification algorithm based on modern convolutional neural networks. The input data is a log-mel spectrogram obtained by multitaper processing—a power spectrum estimation method that uses orthogonal windows (tapers) to suppress noise components and improve the information content of features. Multitaper processing allows one to estimate the power spectral density of a stationary ergodic random process using a finite segment of its realization. The mel scale is a psychophysical pitch scale that simulates human perception. This paper presents a description of the algorithm and its validation using river navigation data collected using a directional sound source—a microphone located in the focal plane of a parabolic reflector. Model training is evaluated depending on the amount of data, and the performance of various convolutional networks is compared.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 2","pages":"249 - 260"},"PeriodicalIF":0.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pulse-Echo Measurement of Frequency-Dependent Phase Velocities and Absorption of Longitudinal and Shear Waves in Solid Plates 脉冲回波测量的频率相关相速度和吸收的纵波和横波在固体板

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600865

L. M. Kotelnikova, S. A. Asfandiyarov, S. A. Tsysar, O. A. Sapozhnikov

{"title":"Pulse-Echo Measurement of Frequency-Dependent Phase Velocities and Absorption of Longitudinal and Shear Waves in Solid Plates","authors":"L. M. Kotelnikova, S. A. Asfandiyarov, S. A. Tsysar, O. A. Sapozhnikov","doi":"10.1134/S1063771026600865","DOIUrl":"10.1134/S1063771026600865","url":null,"abstract":"When solving problems in industrial and medical acoustics, it is necessary to know the elastic and dissipative parameters of the used materials, which are determined by the phase velocities and absorption coefficients of acoustic waves. In this work, a pulse-echo double through-transmission method in oblique incidence has been used to measure the phase velocities and absorption coefficients of longitudinal and shear acoustic waves in materials. The polycarbonate, plexiglass, nylon, and Teflon plates have been used as the samples under study. A setup has been designed consisting of a piezoelectric transducer serving as a transmitter and receiver, a flat reflector positioned parallel to the transducer surface, and a plane-parallel sample under study mounted in a rotating device between the transmitter and reflector. The reflector allows the beam to be reversed so that it entirely passes the same path backward as it did forward, i.e., without displacement, returning to the transmitter. When the beam is obliquely incident on the plate, two refracted waves are generated in the latter, namely, longitudinal and shear one separated by arrival time. By separating these components in the received signal and performing their spectral analysis, the frequency dependences of the phase velocities and absorption coefficients of the longitudinal and shear waves have been measured with high accuracy.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 2","pages":"141 - 156"},"PeriodicalIF":0.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Algorithms for Suppressing Noise from Local Interference Sources in Sonar Active Mode 声纳主动模式下局部干扰源噪声抑制算法

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600658

A. I. Mashoshin, V. S. Mel’kanovich

引用次数: 0

Rapid Estimation of the Sonic Boom Characteristics from Supersonic Passenger Aircraft in a Standard Atmosphere Based on Analytical Solutions: Caustics in Nonsteady Flight Modes 基于解析解的标准大气下超音速客机音爆特性快速估计：非定常飞行模式下的焦散

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600129

A. O. Korunov

{"title":"Rapid Estimation of the Sonic Boom Characteristics from Supersonic Passenger Aircraft in a Standard Atmosphere Based on Analytical Solutions: Caustics in Nonsteady Flight Modes","authors":"A. O. Korunov","doi":"10.1134/S1063771026600129","DOIUrl":"10.1134/S1063771026600129","url":null,"abstract":"The exact solutions for rays and ray tube areas in a standard atmosphere made it possible to formulate a criterion for sonic boom focusing on the ground in supersonic turn mode, as well as to calculate the caustic–ground intersection line width in acceleration mode in elementary functions. The dichotomy method was used as the basis for simple algorithms to calculate the caustic–ground intersection lines (focusing lines) arising in the acceleration and supersonic turn modes of a supersonic passenger aircraft. The dependence of the geometry of the focusing lines on the main flight trajectory parameters has been investigated. In acceleration mode, these parameters are flight altitude and acceleration, and in the case of supersonic turn, flight altitude, Mach number, and trajectory curvature radius. The focusing lines “stabilization” effect with increasing acceleration in acceleration mode and Mach number in supersonic turn mode has been observed. It has been established that flight altitude has a significantly smaller effect on the focusing lines shape than other trajectory parameters.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 2","pages":"210 - 230"},"PeriodicalIF":0.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic Distance Measurement in the Kara Sea in the Presence of Large-Amplitude Nonlinear Internal Waves 大振幅非线性内波存在下喀拉海声距离测量

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771026600373

V. G. Petnikov, Yu. V. Nazarenko, D. D. Sidorov, A. A. Lunkov

引用次数: 0