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检索条件"机构=MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering"
55 条 记 录,以下是41-50 订阅
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Characterization of range‐dependent shallow water waveguides
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The Journal of the Acoustical Society of America 2005年 第S1期80卷 S52-S52页
作者: George V. Frisk Ferdinand J. Diemer Peter H. Dahl Department of Ocean Engineering Woods Hole Oceanographic Institution Woods Hole MA 02543 MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering Woods Hole MA 02543
A technique for characterizing range‐dependent shallow water waveguides is described. The method consists of determining the beamformed output of a horizontal array over short apertures for signals due to a cw point ...
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A modal/WKB inversion method for determining sound‐speed profiles in the ocean and ocean bottom
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The Journal of the Acoustical Society of America 2005年 第S1期84卷 S175-S175页
作者: Kevin D. Casey George V. Frisk MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering Woods Hole MA 02543 Department of Ocean Engineering Woods Hole Oceanographic Institute Woods Hole MA 02543
Two approaches to determining sound‐speed profiles in the ocean and ocean bottom using measured acoustic modal eigenvalues are examined. Both methods use measured eigenvalues and mode‐dependent assumed values of the...
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An integral equation approach to range‐dependent boundary value problems in ocean acoustics
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The Journal of the Acoustical Society of America 2005年 第S1期83卷 S117-S117页
作者: Peter H. Dahl George V. Frisk MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering Woods Hole Oceanographic Institution Woods Hole MA 02543 Department of Ocean Engineering Woods Hole Oceanographic Institution Woods Hole MA 02543
In ocean acoustics, the introduction of range discontinuities, for example, the water‐to‐ice canopy surface, creates a mixed boundary value problem. In this paper, an exact solution of certain mixed boundary value p...
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Low‐frequency diffraction from a free surface coupled to a semi‐infinite elastic surface as modeled by sea ice properties
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The Journal of the Acoustical Society of America 2005年 第S1期85卷 S50-S50页
作者: Peter H. Dahl George V. Frisk MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering Department of Ocean Engineering Massachusetts Institute of Technology Cambridge MA 02139 Department of Ocean Engineering Woods Hole Oceanographic Institution Woods Hole MA 02543
This paper discusses the solution of a low‐frequency plane wave incident upon a semi‐infinite elastic plate, such as an Arctic ice lend or free edge, using the Wiener‐Hopf method. By low‐frequency it is meant that...
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A self‐consistent theory of wave propagation and scattering through weakly inhomogeneous media
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The Journal of the Acoustical Society of America 2005年 第S1期85卷 S70-S70页
作者: Dajun Tang George V. Frisk MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering Department of Ocean Engineering Massachusetts Institute of Technology Cambridge MA 02139 Department of Ocean Engineering Woods Hole Oceanographic Institution Woods Hole MA 02543
A unified perturbation approach to wave propagation and scattering in weakly inhomogeneous media is presented. By separating the total wave field into an averaged coherent propagation part and a random scattering part...
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Estimating sea surface spectra with acoustic tomography
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The Journal of the Acoustical Society of America 2005年 第S1期80卷 S82-S82页
作者: James H. Miller Ching‐Sang Chiu James F. Lynch MIT/WHOI Joint Program in Oceanographic Engineering Woods Hole Oceanographic Institution Woods Hole MA 02543 Woods Hole Oceanographic Institution Woods Hole MA 02543
A technique for estimating space‐ and time‐varying sea surface spectra using acoustic tomography is described. The technique uses acoustic (mode and/or ray) phase or travel time perturbations as data for the inversi...
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Reconstruction of a complex acoustic field from its real or imaginary part
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The Journal of the Acoustical Society of America 2005年 第S1期78卷 S30-S30页
作者: Michael S. Wengrovitz George V. Frisk Alan V. Oppenheim MIT/WHOI Joint Program in Oceanography/Oceanographic Engineering Woods Hole MA 02543 Woods Hole Oceanographic Institution Woods Hole MA 02543 Research Laboratory of Electronics Department of EECS Massachusetts Institute of Technology Cambridge MA 02139
In underwater acoustics, the sound pressure field in a horizontally stratified, range‐independent medium due to a continuous‐wave point source can be described by a Hankel transform of the depth‐dependent Green'...
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A linear inverse scheme for the extraction of ocean bottom geoacoustic parameters from modal eigenvalues
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The Journal of the Acoustical Society of America 2005年 第S1期76卷 S94-S95页
作者: S. D. Rajan M. S. Wengrovitz J. F. Lynch G. V. Frisk MIT/Woods Hole Oceanographic Institution Joint Program in Oceanography/Oceanographic Engineering Woods Hole MA 02543 Woods Hole Oceanographic Institution Woods Hole MA 02543
Shallow water theoretical and experimental results recently obtained by Frisk, Lynch, Wengrovitz, and Rajan [G. V. Frisk and J. F. Lynch, J. Acoust. Soc. Am. 76, 205–216 (1984)] indicate that one can perform a relati...
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Numerical modeling of the scattered acoustic field from elastic ice
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The Journal of the Acoustical Society of America 2005年 第S1期83卷 S37-S37页
作者: J. Robert Fricke Ralph A. Stephen Arthur B. Baggeroer MIT/WHOI Joint Program MIT Cambridge MA 02139 Woods Hole Oceanographic Institution Woods Hole MA 02543 Department of Ocean MIT Cambridge MA 02139 Department of Electrical Engineering MIT Cambridge MA 02139
A two‐dimensional elastic finite difference modeling program written for marine geophysical applications [M. E. Dougherty and R. A. Stephen, J. Acoust. Soc. Am. 82, 238–256 (1987)] has been modified to study the ice...
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Visually augmented navigation in an unstructured environment using a delayed state history
Visually augmented navigation in an unstructured environment...
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IEEE International Conference on Robotics and Automation (ICRA)
作者: R. Eustice O. Pizarro H. Singh MIT/WHOI Joint Program in Applied Ocean Science and Engineering Massachusetts Institute of Technology Cambridge MA USA Department of Applied Ocean Physics and Engineering Woods Hole Oceanographic Institution Woods Hole MA USA
This work describes a framework for sensor fusion of navigation data with camera-based 5 DOF relative pose measurements for 6 DOF vehicle motion in an unstructured 3D underwater environment. The fundamental goal of th... 详细信息
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