標(biāo)題: Titlebook: Underwater Acoustics and Signal Processing; Proceedings of the N Leif Bj?rn? Conference proceedings 1981 D. Reidel Publishing Company, Dord [打印本頁(yè)] 作者: 代表 時(shí)間: 2025-3-21 17:17
書(shū)目名稱Underwater Acoustics and Signal Processing影響因子(影響力)
書(shū)目名稱Underwater Acoustics and Signal Processing影響因子(影響力)學(xué)科排名
書(shū)目名稱Underwater Acoustics and Signal Processing網(wǎng)絡(luò)公開(kāi)度
書(shū)目名稱Underwater Acoustics and Signal Processing網(wǎng)絡(luò)公開(kāi)度學(xué)科排名
書(shū)目名稱Underwater Acoustics and Signal Processing被引頻次
書(shū)目名稱Underwater Acoustics and Signal Processing被引頻次學(xué)科排名
書(shū)目名稱Underwater Acoustics and Signal Processing年度引用
書(shū)目名稱Underwater Acoustics and Signal Processing年度引用學(xué)科排名
書(shū)目名稱Underwater Acoustics and Signal Processing讀者反饋
書(shū)目名稱Underwater Acoustics and Signal Processing讀者反饋學(xué)科排名
作者: Ankylo- 時(shí)間: 2025-3-21 21:11 作者: interference 時(shí)間: 2025-3-22 00:33
Chemical Sound Absorption in the Seamber of processes occur in sea water, only two account for most of the absorption in the frequency range of interest. These involve MgSO. (relaxation frequency f.~100 kHz) and B(OH). (f.~1 kHz). Investigations by the resonator method have revealed a third relaxation involving MgCO. (f.~10 kHz) which作者: 他姓手中拿著 時(shí)間: 2025-3-22 07:47
Scattering from Inhomogeneitiestheoretical and experimental descriptions concentrate on the smaller scatterers, especially fish, since internal waves and other wave motions will be covered else-where. A great variety of effects is listed, together with their significance for the scatterers themselves and for the resulting sonar l作者: 花爭(zhēng)吵 時(shí)間: 2025-3-22 09:04 作者: 靈敏 時(shí)間: 2025-3-22 14:28 作者: 發(fā)源 時(shí)間: 2025-3-22 20:46
Acoustic Detection, Communication, and Signal Processing Requirements for the Optional Deployment of system for the next decade. It involves deploying five SSBNs at any given time in two shallow regions off the cost of Western Europe each with a surface area of 5000 km. and depths of 45–80 m. It also involves placing a grid of sonic sources with characteristic spacing of 500 m in fixed and accurat作者: 傻 時(shí)間: 2025-3-22 22:35
Signal Processing Aspects of Nonlinear Acousticsed on the possibilities nonlinear effects might offer. In 1968, Mellen (2) illustrated some of these possibilities through laboratory tank experiments. Berktay returned in 1972 (3) to present some engineering models for the design of parametric sources. In 1976, Bj?rn? (4) presented a survey of theo作者: 確定 時(shí)間: 2025-3-23 04:11 作者: OMIT 時(shí)間: 2025-3-23 07:52 作者: Galactogogue 時(shí)間: 2025-3-23 10:34 作者: Debate 時(shí)間: 2025-3-23 15:05 作者: obstinate 時(shí)間: 2025-3-23 18:52 作者: 不能強(qiáng)迫我 時(shí)間: 2025-3-24 01:32
A Brief History of Submarine Exploration of the Arctic Basin and Contiguous Marginal Sea Ice Zonesnited States and which continue to the present day. The 1970 USS QUEENFISH Arctic expedition, which the author commanded, further refined many methods of collecting scientific information developed during this period.作者: HIKE 時(shí)間: 2025-3-24 03:47
Acoustic Detection, Communication, and Signal Processing Requirements for the Optional Deployment ofely known positions on the sea floor spanning the entire deployment area in order to provide the SSNBs on station with 1) a sonic noise cover, 2) a reference grid for accurate navigation, 3) a sonic receiving communication channel, and 4) means of near-range detection of submarines and surface ships without the use of active Sonar.作者: PALL 時(shí)間: 2025-3-24 06:34 作者: 口味 時(shí)間: 2025-3-24 12:43
Signal Processing Aspects of Nonlinear Acoustics. Berktay returned in 1972 (3) to present some engineering models for the design of parametric sources. In 1976, Bj?rn? (4) presented a survey of theoretical and experimental results on parametric arrays developed at several laboratories.作者: 知識(shí) 時(shí)間: 2025-3-24 15:04 作者: GEAR 時(shí)間: 2025-3-24 19:16 作者: gene-therapy 時(shí)間: 2025-3-25 00:42 作者: 幻想 時(shí)間: 2025-3-25 05:03 作者: 恭維 時(shí)間: 2025-3-25 10:14
Underwater Explosives: Scaling of Source SpectraUnderwater explosives are a popular source of acoustic energy because of their ease of deployment, broad bandwidth, high power and low cost. A significant disadvantage of using explosives is the difficulty in obtaining accurate source calibration, largely due to the sensitivity at low frequencies of the source spectrum to detonation depth.作者: 微塵 時(shí)間: 2025-3-25 12:38
The Remote Sensing of Factors Influencing Underwater AcousticsThe marine factors influencing sound propagation in sea water are listed and their remote sensing is concisely reviewed in the light of presently available instrumentation, processing, and oceanographic modelling.作者: APEX 時(shí)間: 2025-3-25 19:24
Deterministic Propagation Modelling I: Fundamental PrinciplesThe physics of sound propagation in the ocean is briefly reviewed. The wave equation is presented and a set of solutions under a variety of approximations are discussed. The consistency among these solutions is illustrated.作者: 簡(jiǎn)略 時(shí)間: 2025-3-25 20:16
Deterministic Propagation Modelling II: Numerical ResultsThe most commonly used propagation models are presented and their areas of applicability are indicated. Furthermore, the use of these models for gaining insight into the physical mechanisms governing sound propagation in the ocean is illustrated through a sequence of modelling examples.作者: 母豬 時(shí)間: 2025-3-26 03:16
Stochastic Propagation ModellingSome remarks on modelling stochastic oceanic quantities in acoustic propagation models will be given first. Then the most commonly used propagation models will roughly be outlined and some examples will be given.作者: RAFF 時(shí)間: 2025-3-26 05:37
Ambient Noise Generation in Pack IceThe deformation of pack ice represents the release of significant mechanical energy. Some of this is coupled into acoustical signals which propagate in the ocean. The nature of the acoustical noise field depends on the nature of the deformation and the mechanical properties of the ice.作者: Corporeal 時(shí)間: 2025-3-26 10:52
Propagation of Sound in Marine SedimentsThe Biot theory for the propagation of sound in marine sediments is reviewed and discussed. An important feature of this theory is that it allows for the movement of the fluid relative to the solid medium resulting in a small velocity dispersion and a viscous contribution to the attenuation.作者: 背叛者 時(shí)間: 2025-3-26 14:46 作者: 河潭 時(shí)間: 2025-3-26 19:22
https://doi.org/10.1007/978-94-009-8447-9Ocean; Phase; Sea ice; acoustics; algorithm; detection; digital signal processing; filtering; image processi作者: Favorable 時(shí)間: 2025-3-27 00:48
Scattering from Inhomogeneitiestheoretical and experimental descriptions concentrate on the smaller scatterers, especially fish, since internal waves and other wave motions will be covered else-where. A great variety of effects is listed, together with their significance for the scatterers themselves and for the resulting sonar limitations.作者: 山間窄路 時(shí)間: 2025-3-27 01:23
A Calculation of Complex Wavenumbers of Virtual Modes in a Pekeris Modelequency (100Hz) in a Pekeris model. The propagation loss of the virtual modes in water is calculated by using the imaginary part of the wavenumbers. This result is compared with the propagation loss evaluated by the method of C.T. Tindle.作者: Commodious 時(shí)間: 2025-3-27 08:11 作者: 使聲音降低 時(shí)間: 2025-3-27 10:35 作者: CANT 時(shí)間: 2025-3-27 17:16
Sigurd O. Nielsenichtsprinzip bei der Bewertung von Pensionsrückstellungen Anwendung fin-den kann. Dabei wurde der Versuch unternommen, diesen nur vage formulier-ten Grundsatz ordnungsm??iger Buchführung in Anlehung an . st?rker zu operationalisieren. Dabei wurde stets vermieden, den Ansatz einer Rech-nungsgrundlage作者: Resection 時(shí)間: 2025-3-27 19:46 作者: 你正派 時(shí)間: 2025-3-27 22:47
Conference proceedings 1981ng place, which makes it an extre- mely difficult task for scientists to follow-up the development in all its phases and to preserve the general view of its rapid- ly increasing number of possibilities. The present Proceedings of the NATO ASI held in Copenhagen during August 1980 join the series of 作者: Ambulatory 時(shí)間: 2025-3-28 04:29
1389-2185 eral view of its rapid- ly increasing number of possibilities. The present Proceedings of the NATO ASI held in Copenhagen during August 1980 join the series of 978-94-009-8449-3978-94-009-8447-9Series ISSN 1389-2185 作者: gospel 時(shí)間: 2025-3-28 08:51 作者: 壯觀的游行 時(shí)間: 2025-3-28 13:08
L. Bj?rn?ehrmalige Besprechung in der Presse, Er?rterung dafür und dagegen zu empfehlen. Da die Verh?ltnisse klein und leicht übersehbar sind, ist zu erwarten, dass die Bewohner der von einer Kleinbahn durchzogenen Gegend auch auf die Betriebsführung einen Einfluss zu üben versuchen werden, und, da hier viel作者: outskirts 時(shí)間: 2025-3-28 15:04
Sigurd O. Nielsenndlagen sowie der Bewertungsprinzipien. Der Vorteil des allgemein gültigen Verfahrens liegt in der separaten Analy-sierbarkeit der genannten Teilbereiche, d.h. beispielsweise, da? die Zustim-mung zum Vorsichtsprinzip unabh?ngig von der Befürwortung bzw. Ablehnung eines variablen Rechnungszinses ist 作者: MEN 時(shí)間: 2025-3-28 22:44
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