標(biāo)題: Titlebook: Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment; A. Caiti,J.-P. Hermand,M. B. Porter Book 2000 Sp [打印本頁(yè)] 作者: Monroe 時(shí)間: 2025-3-21 17:07
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書(shū)目名稱Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment影響因子(影響力)學(xué)科排名
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書(shū)目名稱Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment網(wǎng)絡(luò)公開(kāi)度學(xué)科排名
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書(shū)目名稱Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment讀者反饋
書(shū)目名稱Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment讀者反饋學(xué)科排名
作者: 悄悄移動(dòng) 時(shí)間: 2025-3-21 21:23 作者: 賄賂 時(shí)間: 2025-3-22 01:48
Acoustically Focused Oceanographic Sampling and Ocean Forecasting,e sampling of oceanic fields using synoptic estimates derived from the assimilation of acoustic data. The experimental feasibility of AFOS was demonstrated in the coastal environment of Haro Strait, British Columbia in 1996 using an acoustic-tomographic approach. The experiment’s main results are re作者: Bravado 時(shí)間: 2025-3-22 04:41
The Haro Strait Geoacoustic Tomography Experiment,em of three vertical line arrays and broadband sources were used to create the multiplicity of acoustic paths to sample the area enclosed by the arrays. The approach taken for the inversion is based on ray theory to calculate the acoustic field quantities. The method employs a broadband matched fiel作者: 深淵 時(shí)間: 2025-3-22 10:31
Quantitative Performance Comparison Among Processors in MFP,vely flat bottom, are used to quantitatively evaluate the performance of processors used in matched field processing (MFP). The MVDR processor, the dominant-mode rejection processor and the partially-adaptive reduced-rank processor have been evaluated using data on a tilted line array (TLA). Accordi作者: implore 時(shí)間: 2025-3-22 14:15
Broadband Shallow Water Localization with a Mobile Array: Experimental Results, type local-ization algorithms for towed arrays. Results from two sea tests, one conducted in the Gulf of Mexico in 118 m of water, and one conducted southwest of Key West Fl in 600 m of water will be described. Both tests used a towed multiline array consisting of five horizontal lines, towed nomin作者: implore 時(shí)間: 2025-3-22 17:12 作者: 得體 時(shí)間: 2025-3-23 00:16
Inverse Acoustical Determination of Photosynthetic Oxygen Productivity of Posidonia Seagrass,asurements were performed in the winter and spring of 1995 over a dense and extensive prairie of Posidonia seagrasses which surrounds Scoglio d’Africa, a minor island of the Tuscan Archipelago. The purpose of the measurements was to determine the applicability of model-based, geoacoustic inversion t作者: 慷慨援助 時(shí)間: 2025-3-23 03:35
Transient Bistatic Scattering from Buried Objects,frequency directive transient source both above and below critical grazing angle are considered. The predictions are compared with results from a recent tank experiment for investigating the field scattered by buried spherical objects. An ultrasonic Ricker-like waveform with center frequency 500 kHz作者: 珊瑚 時(shí)間: 2025-3-23 06:47
Inversion of Normal Incidence Backscattered Data: Getting Seabed Geoacoustic and Morphological Para incidence backscattered data obtained using a parametric sonar as a sound source are inverted by comparison with model predictions in a generalized time-frequency domain. Results from several shallow-water sites in the Mediterranean Sea are presented and compared with ground truth, demonstrating go作者: 后退 時(shí)間: 2025-3-23 10:52
New Theoretical Basis for Determining the Geoacoustic Parameters of the Seabed,indicate the following: the wave speeds show very weak, logarithmic frequency dispersion; the attenuations are closely proportional to frequency, f; and both wave speeds increase with increasing mean grain size. A new theoretical approach to wave propagation in unconsolidated sediments is described,作者: 飛鏢 時(shí)間: 2025-3-23 13:57 作者: 能得到 時(shí)間: 2025-3-23 21:39 作者: 陶器 時(shí)間: 2025-3-23 23:37 作者: 軟弱 時(shí)間: 2025-3-24 05:26
Application of Geo-Acoustic Inversion Techniques to Subsurface Imaging of Seismic Near Field Scenardisposal sites, former military or industrial regions up to 50 m depth. Using seismic methods becomes more and more popular in this part of environmental protection. In near-surface seismics the elastic wavefield is excited by a seismic source, e.g. a falling weight or a sledge hammer acting on a me作者: Gingivitis 時(shí)間: 2025-3-24 08:23 作者: 富足女人 時(shí)間: 2025-3-24 11:02
Lih-Rong Wang,Michael P. H. Liu few oceanographic modes. We also used the echo-pattern to track the source over a period of several days. During this period the isotherms in the ocean wavered by 20 m as a result of the tides, providing a challenge for model-based tracking. We will discuss these acoustic results with emphasis on the source tracking.作者: Obituary 時(shí)間: 2025-3-24 16:20 作者: Myocyte 時(shí)間: 2025-3-24 21:24
ical processes in shallow water environments. Toreview the state of the art, an international workshop was held atCarvoeiro, Portugal, in March 1999, bringing together leadinginternational researchers in the field. In contrast to much of therecent theoretical work, emphasis was placed on the .experi作者: 使混合 時(shí)間: 2025-3-25 01:51 作者: 高原 時(shí)間: 2025-3-25 05:15
Gra?a Le?o Fernandes,Margarida Chagas Lopesects, can be clearly seen on the signals and they can be processed separately. The acoustical effect of tides enables to perform inversion with simple and fast methods. The results of INTIMATE96 confirm the efficiency of broadband analysis on a single hydrophone to infer the geophysical environment.作者: 新鮮 時(shí)間: 2025-3-25 07:40 作者: 記成螞蟻 時(shí)間: 2025-3-25 12:32 作者: paradigm 時(shí)間: 2025-3-25 15:50 作者: aggrieve 時(shí)間: 2025-3-25 21:57 作者: Kaleidoscope 時(shí)間: 2025-3-26 00:46
Transient Bistatic Scattering from Buried Objects, function of vertical scattering angle are found to agree well with observations. Predictions of the energy distributions and arrival times of multiple- and creeping wave scattering components are presented. However, such components were not clearly identifiable in the observed data.作者: 改良 時(shí)間: 2025-3-26 05:35 作者: 悠然 時(shí)間: 2025-3-26 11:55
,Geoacoustic Inversion with Drifting Buoys: Enverse 1997–98 Experiments (Marettimo Is.),tained between a controlled source and a field of receivers drifting over carbonate bioclastic sediments with outcropping rocky substratum. Inversion results agree with ground truth data obtained during the EnVerse 98 geophysic survey.作者: 洞穴 時(shí)間: 2025-3-26 15:31
Book 2000sses in shallow water environments. Toreview the state of the art, an international workshop was held atCarvoeiro, Portugal, in March 1999, bringing together leadinginternational researchers in the field. In contrast to much of therecent theoretical work, emphasis was placed on the .experimental.val作者: 狂怒 時(shí)間: 2025-3-26 18:21
Inversion of Normal Incidence Backscattered Data: Getting Seabed Geoacoustic and Morphological Paraime-frequency domain. Results from several shallow-water sites in the Mediterranean Sea are presented and compared with ground truth, demonstrating good agreement between estimation and direct measurements. The field trial has provided valuable lessons about how best to conduct such an experiment and analyze the data.作者: Diskectomy 時(shí)間: 2025-3-27 00:48 作者: 止痛藥 時(shí)間: 2025-3-27 01:45
Sumi Madhok,Anne Phillips,Kalpana Wilsond processor and an efficient global search process that improves the resolution of the heat bath algorithm of simulated annealing. The inversion method was applied to estimate the local geoacoustic properties at one of the arrays.作者: 殺菌劑 時(shí)間: 2025-3-27 07:03
https://doi.org/10.1057/9781137460455ng to this evaluation, the MVDR processor with white noise gian constraint (WNGC) has the best performance, followed by the dominant-mode rejection processor, the partially-adaptive reduced-rank processor and the linear processor.作者: DEBT 時(shí)間: 2025-3-27 10:08 作者: 警告 時(shí)間: 2025-3-27 17:18 作者: 不出名 時(shí)間: 2025-3-27 21:43
The Haro Strait Geoacoustic Tomography Experiment,d processor and an efficient global search process that improves the resolution of the heat bath algorithm of simulated annealing. The inversion method was applied to estimate the local geoacoustic properties at one of the arrays.作者: BUDGE 時(shí)間: 2025-3-27 22:02 作者: Chivalrous 時(shí)間: 2025-3-28 03:03 作者: 不自然 時(shí)間: 2025-3-28 07:54
978-94-010-5800-1Springer Science+Business Media Dordrecht 2000作者: 臭了生氣 時(shí)間: 2025-3-28 10:30 作者: 孤僻 時(shí)間: 2025-3-28 16:10 作者: progestogen 時(shí)間: 2025-3-28 19:11 作者: Neutral-Spine 時(shí)間: 2025-3-29 00:35
Gra?a Le?o Fernandes,Margarida Chagas Lopess the effects of internal tides on the acoustic propagation. A towed broadband acoustic source and a 4-hydro-phone vertical array were used. Acoustic data were collected for 5 days, including legs where the source ship was moving and legs with the ship on station. Intensive environmental surveys (XB作者: 寒冷 時(shí)間: 2025-3-29 05:50 作者: optional 時(shí)間: 2025-3-29 11:17 作者: JAUNT 時(shí)間: 2025-3-29 15:21 作者: LIEN 時(shí)間: 2025-3-29 17:39 作者: 相信 時(shí)間: 2025-3-29 23:13 作者: 大方一點(diǎn) 時(shí)間: 2025-3-30 02:30
https://doi.org/10.1057/9780230106239asurements were performed in the winter and spring of 1995 over a dense and extensive prairie of Posidonia seagrasses which surrounds Scoglio d’Africa, a minor island of the Tuscan Archipelago. The purpose of the measurements was to determine the applicability of model-based, geoacoustic inversion t作者: 信任 時(shí)間: 2025-3-30 07:36
Gender, Citizenship and Newspapersfrequency directive transient source both above and below critical grazing angle are considered. The predictions are compared with results from a recent tank experiment for investigating the field scattered by buried spherical objects. An ultrasonic Ricker-like waveform with center frequency 500 kHz作者: Tonometry 時(shí)間: 2025-3-30 08:18
https://doi.org/10.1057/9781137476418 incidence backscattered data obtained using a parametric sonar as a sound source are inverted by comparison with model predictions in a generalized time-frequency domain. Results from several shallow-water sites in the Mediterranean Sea are presented and compared with ground truth, demonstrating go作者: 允許 時(shí)間: 2025-3-30 14:59
Ruth Simpson,Jason Hughes,Natasha Slutskayaindicate the following: the wave speeds show very weak, logarithmic frequency dispersion; the attenuations are closely proportional to frequency, f; and both wave speeds increase with increasing mean grain size. A new theoretical approach to wave propagation in unconsolidated sediments is described,作者: APNEA 時(shí)間: 2025-3-30 16:41
https://doi.org/10.1057/978-1-137-58594-3ocesses. The process is model-based. Acoustic propagation is sensitive to certain acoustic properties including the reflection coefficient at the water-sediment interface, and the sound speed and attenuation profiles within the sediment interior. To be generally useful, the models must be capable of作者: 邊緣帶來(lái)墨水 時(shí)間: 2025-3-30 23:33 作者: intrude 時(shí)間: 2025-3-31 04:17
The Power of Class; the Gender of Power,s, for shallow water environment studies. In particular, we show here that the joint inversion of direct, reflected and head waves provides a better reconstruction of the sea water, the shallowest Earth layers and their inhomogeneities in depth. It doubles in fact the available ray paths and travelt作者: Arthritis 時(shí)間: 2025-3-31 05:13 作者: lactic 時(shí)間: 2025-3-31 12:05
https://doi.org/10.1057/9780333985397of propagation measurements. The main features of the buoys are the large dynamic range, digital signal conditioning unit, global positioning system receiver and reliable radio data link. The buoys drift away from a broadband source receiving its pings at known positions. Single hydrophone, matched 作者: Synapse 時(shí)間: 2025-3-31 14:55
https://doi.org/10.1007/978-94-011-4112-3Ebbe; Ocean; Tide; environment; marine; wave作者: 逗留 時(shí)間: 2025-3-31 18:33
http://image.papertrans.cn/e/image/318789.jpg作者: Harbor 時(shí)間: 2025-3-31 23:46
Book 2000e use of sound tosolve geometric inverse problems for precise tracking of underseavehicles. ..Audience:. This volume should be useful both to the noviceseeking an introduction to the field and to advanced researchersinterested in the latest developments in acoustic sensing of the oceanenvironment. .作者: TOXIN 時(shí)間: 2025-4-1 04:33 作者: 強(qiáng)有力 時(shí)間: 2025-4-1 06:59
Neue Schule, neuer Mensch, neuer Mann? – icult to support due to the different time scales between the rate of hydrographic data sampling and the rate of signal transmissions. To study the possibility that a SWP could be responsible for the observed signal increase, the INTIMATE’96 hydrographic data was used to generate physically consiste
