منابع مشابه
Ocean Acoustic Interferometry Experiment
Ocean acoustic interferometry (OAI) is a technique which relates the cross-correlations from a line of active sources to two receivers within a waveguide, and the time domain Green’s function between said receivers. Within this paper, three specific OAI source geometries are briefly introduced and explained. Experimental OAI data were collected during the SW06 (Shallow Water ’06) sea trials dur...
متن کاملOcean acoustic interferometry.
Ocean acoustic interferometry refers to an approach whereby signals recorded from a line of sources are used to infer the Green's function between two receivers. An approximation of the time domain Green's function is obtained by summing, over all source positions (stacking), the cross-correlations between the receivers. Within this paper a stationary phase argument is used to describe the rela...
متن کاملMapping Ocean Winds by Broadband Acoustic Interferometry
Mapping the wind over vast ocean areas is a very important practical problem, especially at high winds. Satellite measurements using scattering of electromagnetic waves from the rough ocean surface are extremely useful; however, the cross section for this scattering saturates at high winds, when wind speed measurements are most valuable. On the other hand, the same mechanism that precludes use ...
متن کاملWind Mapping by Ocean Acoustic Interferometry
The field of surface wind blowing over the vast ocean areas is an important parameter for numerical models used for weather forecasts. Surface wind is currently measured from satellites. This provides necessary global coverage; however, measurements of high winds meet some difficulties due to weak dependency of the radarand radiometric signals on the wind velocity at high winds. In [1] a new me...
متن کاملOcean Acoustic Tomography
The idea of using the sound to monitor the changes in the marine environment motivated the oceanographers to develop the concept of ocean acoustic tomography. Starting from the early 80’s when the pioneers started to pave the way leading to the acoustical monitoring of the ocean change and coming to the beginning of the new millennium, several achievements in the field can be reported vindicati...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 2007
ISSN: 0001-4966
DOI: 10.1121/1.2723650