Zobrazeno 1 - 10
of 398
pro vyhledávání: '"George V. Frisk"'
Autor:
Subramaniam Rajan, George V. Frisk
Publikováno v:
The Journal of the Acoustical Society of America. 147(3)
Broadband data acquired during the Modal Mapping Experiment (MOMAX) V experiment are used to invert simultaneously for the three-dimensional (3D) water column sound speed profiles and the compressional wave speed and density profiles of the seabed in
Autor:
Cynthia J. Sellers, Chad M. Smith, Keith von der Heydt, Kyle M. Becker, George V. Frisk, Megan S. Ballard, Subramaniam Rajan
Publikováno v:
IEEE Journal of Oceanic Engineering. 40:607-620
This paper summarizes the results of an experiment whose primary goal was to demonstrate that reliable geoacoustic inversion results can be obtained in shallow water by postprocessing acoustic data acquired by Global Positioning System (GPS)-capable
Autor:
George V. Frisk
Publikováno v:
The Journal of the Acoustical Society of America. 128:2405-2408
The Pioneers of Underwater Acoustics Medal is presented to an individual irrespective of nationality, age, or society affiliation, who has made an outstanding contribution to the science of underwater acoustics, as evidenced by publication of researc
Publikováno v:
IEEE Journal of Oceanic Engineering. 34:526-538
In this paper, inversion for bottom sediment properties at a site on the New Jersey continental shelf is studied as part of the Shallow Water Acoustic Technology (SWAT) project. A source towed at a constant water depth over a range of some tens of ki
Autor:
Kyle M. Becker, George V. Frisk
Publikováno v:
The Journal of the Acoustical Society of America. 120:1423-1434
In shallow water, geoacoustic properties of the seabed can be inferred from knowledge of acoustic normal modes propagating in the waveguide. For range-varying waveguides, modal content varies locally in response to changes in the environment. The pro
Publikováno v:
Acoustical Science and Technology. 26:326-337
Low frequency sound propagation features and bottom sediment properties in shallow water were studied in the Shallow Water Acoustic Technology (SWAT) experiments conducted in the East China Sea. In these experiments, a hydraulic-type acoustic source
Publikováno v:
IEEE Journal of Oceanic Engineering. 28:331-341
This paper presents the results of a perturbative inverse approach applied to the range-dependent acoustic data provided as part of the Geoacoustic Inversion Techniques Workshop. The method is based on the Hankel transform relationship between comple
Publikováno v:
The Journal of the Acoustical Society of America. 135(6)
Estimates of the spatial and temporal variability of ocean sound speed on the New Jersey shelf were obtained using acoustic signals measured by a set of freely drifting buoys. The range- and time-dependent inversion problem is computationally intensi
Autor:
K. Ohta, George V. Frisk
Publikováno v:
IEEE Journal of Oceanic Engineering. 22:501-521
In a shallow-water ocean environment, the range dependent variation of the geoacoustic properties of the seabed is one of the crucial factors affecting sound propagation. Since the local modes of propagation depend on the spatial changes in the botto
Publikováno v:
The Journal of the Acoustical Society of America. 98:508-516
An experiment to study acoustic backscattering from deep‐ocean sediments was conducted in July 1993 as part of the Acoustic Reverberation Special Research Program sponsored by the Office of Naval Research. An acoustic source transmitting chirp sign