Zobrazeno 1 - 10
of 32
pro vyhledávání: '"James A. Doutt"'
Publikováno v:
IEEE Journal of Oceanic Engineering. 23:174-187
In September 1988, a series of acoustic propagation experiments were conducted in the Hudson Canyon area. These included synthetic aperture experiments in which a source transmitting a set of four pure tones was towed toward/away from a vertical arra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45b5e3a3fec35026bd58e2bcb59c7de3
https://doi.org/10.1109/48.701190
https://doi.org/10.1109/48.701190
Publikováno v:
IEEE Journal of Oceanic Engineering. 20:321-336
Calibrated acoustic measurements were made under calm sea state conditions on the New Jersey shelf near the AM COR 6010 borehole, a surveyed area with known geophysical properties. The experiment was conducted in 73 m water with supporting measuremen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf7d0d8c33466040883eb8ca1b93951
https://doi.org/10.1109/48.468241
https://doi.org/10.1109/48.468241
Publikováno v:
The Journal of the Acoustical Society of America. 93:721-738
Sea ice is a heterogeneous material whose acoustic properties are functions of time and space. Results of a crosshole tomography experiment conducted in multi‐year ice with the objective of determining the spatial structure of the compressional and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6c92ac3be2e94516b19bf2bfa631365
https://doi.org/10.1121/1.405436
https://doi.org/10.1121/1.405436
Publikováno v:
IEEE Oceanic Engineering Society. OCEANS'98. Conference Proceedings (Cat. No.98CH36259).
In many experiments at sea the measurement of distance is of great importance. This can be the distance between instruments mounted on a ship, where the ship's superstructure makes direct measurement difficult if not impossible, or, for example, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea0e372ac04390f614adaece98225f8c
https://doi.org/10.1109/oceans.1998.726287
https://doi.org/10.1109/oceans.1998.726287
Publikováno v:
OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158).
An experimental technique is described for mapping the wavenumber spectrum of the normal mode field as a function of position in a shallow water waveguide with three-dimensional variation in its acoustic properties. These modal maps provide a charact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::102f155c5b6a42785049e187ef6b785c
https://doi.org/10.1109/oceans.2000.881258
https://doi.org/10.1109/oceans.2000.881258
Autor:
William L. Siegmann, Subramaniam D. Rajan, R. J. Cederberg, W. M. Carey, Richard B. Evans, James A. Doutt
Publikováno v:
Full Field Inversion Methods in Ocean and Seismo-Acoustics ISBN: 9789048145454
Acoustic pressure levels were recorded from a multifrequency source towed at mid-depth on three legs, both towards and away from a 24-element vertical hydrophone array. Horizontal wavenumber spectra were estimated using a synthetic aperture Hankel tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44a2eb2f8887ef0cc22b54d7422af5e2
https://doi.org/10.1007/978-94-015-8476-0_55
https://doi.org/10.1007/978-94-015-8476-0_55
Autor:
James A. Doutt, John R. Preston
Publikováno v:
Ocean Reverberation ISBN: 9789401049221
Volume scattering experiments are discussed for two deep (> 1500 m) sites in the Norwegian Sea. Results are presented showing scattering strength as a function of depth and frequency below 1500 Hz. A day-night migration effect was visible at both sit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c796658088cfbc8bf88d1d60e28e14e9
https://doi.org/10.1007/978-94-011-2078-4_37
https://doi.org/10.1007/978-94-011-2078-4_37
Autor:
Calvert F. Eck, Darren Cosandier, Keith von der Heydt, Hugh Martell, James A. Doutt, Laurence N. Connor
Publikováno v:
The Journal of the Acoustical Society of America. 102:3144-3144
A relative accuracy of about 1 m in range between a ship‐towed sound source and drifting buoys was required for the analysis of data from the MOMAX shallow‐water acoustics experiment performed off the New Jersey coast in March 1997. The maximum s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::819585d1837ebe7146bc0cac174166d3
https://doi.org/10.1121/1.420686
https://doi.org/10.1121/1.420686
Publikováno v:
The Journal of the Acoustical Society of America. 100:2704-2704
In September 1988 a series of acoustic propagation experiments was conducted in the Hudson Canyon area. It included a synthetic aperture experiment in which a source which transmitted a set of four pure tones was towed toward/away from a vertical arr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc7bd0aa22621aa3d99befe53ae16982
https://doi.org/10.1121/1.416085
https://doi.org/10.1121/1.416085