Zobrazeno 1 - 10
of 22
pro vyhledávání: '"John Oeschger"'
Autor:
John Oeschger, Louis Goodman
Publikováno v:
The Journal of the Acoustical Society of America. 100:1451-1462
An examination is made of the use of broad bandwidth high‐frequency acoustic scattering to infer remotely the spatial structure of the temperature field of a thermally driven buoyant plume. Application of the far‐field Born approximation results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca3f4dcfb93242299741ab3df59335ad
https://doi.org/10.1121/1.415992
https://doi.org/10.1121/1.415992
Publikováno v:
The Journal of the Acoustical Society of America. 91:3212-3227
Limited in situ measurements from high‐frequency underwater acoustic echosounders have suggested that there may be circumstances in which acoustic scattering from ocean temperature variability is sufficiently intense to be observable over volume re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5fa42085fcc286ce704355636b577a3
https://doi.org/10.1121/1.402858
https://doi.org/10.1121/1.402858
Publikováno v:
OCEANS 2007.
We report results of field tests of the first prototype of a novel man-portable Magnetic Scalar Triangulation and Ranging (STAR) technology. The new magnetic sensor system technology is being developed with support from the Strategic Environmental Re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62b0b36472fa337b6249fa7fe71e3bbf
https://doi.org/10.1109/oceans.2007.4449229
https://doi.org/10.1109/oceans.2007.4449229
Publikováno v:
OCEANS 2006.
The Autonomous Operations Future Naval Capability (AOFNC) program developed a 12.75" diameter autonomous underwater vehicle (AUV) and a synthetic aperture sonar (SAS12) payload. This system falls under the lightweight designator of the Unmanned Under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b2f2ead169c78cc4432c3fed518ebc3
https://doi.org/10.1109/oceans.2006.307046
https://doi.org/10.1109/oceans.2006.307046
Autor:
Roy Wiegert, John Oeschger
Publikováno v:
OCEANS 2006.
We report progress toward achievement of a new magnetic tensor gradiometer technology that is being developed with support from the Strategic Environmental Research and Development Program (SERDP). The objective of this R & D effort is to provide a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::113d9a5112af782fa4d9c07b6123fb7f
https://doi.org/10.1109/oceans.2006.306805
https://doi.org/10.1109/oceans.2006.306805
Autor:
John Oeschger, Louis Goodman
Publikováno v:
The Journal of the Acoustical Society of America. 113(3)
Far-field weak scattering theory is applied to the case of high-frequency broad-bandwidth acoustic scattering from a thermally generated buoyant plume in a controlled laboratory environment. To first order, the dominant scattering mechanism is therma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae850fde61997f55fabd26149e6554b8
https://pubmed.ncbi.nlm.nih.gov/12656370
https://pubmed.ncbi.nlm.nih.gov/12656370
Autor:
John Oeschger
The long-term goals are to: 1. Measure the three-dimensional wave number spectrum of ocean turbulence using high frequency broadband acoustic scatter. 2. Quantify the acoustic scatter that results from medium variability while other sources of scatte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d92b647493f687f59e2f8ea7b08475c1
https://doi.org/10.21236/ada609555
https://doi.org/10.21236/ada609555
Autor:
John Oeschger
Publikováno v:
The Journal of the Acoustical Society of America. 113:1781
A method is provided for determining multiple feature variances in a medium. Acoustic sources are positioned on one side of a selected scattering direction. Acoustic receivers are positioned on an opposite side of the selected scattering direction su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f71a64fdb9fc51e75af1972fe0c62d69
https://doi.org/10.1121/1.1572312
https://doi.org/10.1121/1.1572312
Autor:
John Oeschger
Publikováno v:
The Journal of the Acoustical Society of America. 110:2641-2641
Laboratory results of high‐frequency acoustic scattering measurements from a thermally driven plume are reported. Farfield weak scattering theory describes the acoustic scatter from the medium variability. To first order, the dominant scattering me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70501386ef319f394f07313365641b7e
https://doi.org/10.1121/1.4776956
https://doi.org/10.1121/1.4776956