Zobrazeno 1 - 10
of 350
pro vyhledávání: '"William A. Kuperman"'
Autor:
F. Hunter Akins, William A. Kuperman
Publikováno v:
The Journal of the Acoustical Society of America. 150:270-280
Range-coherent matched field processing (MFP) coherently combines snapshots to localize a moving, narrowband source. This approach differs from existing MFP approaches that treat each snapshot as having a random phase due to both unknown motion throu
Autor:
François Baqué, Sandrine T. Rakotonarivo, J.-F. Chaix, William A. Kuperman, Serge Mensah, Emma Lubeigt
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, 2019, 145 (4), pp.EL317-EL322. ⟨10.1121/1.5099170⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2019, 145 (4), pp.EL317-EL322. ⟨10.1121/1.5099170⟩
Journal of the Acoustical Society of America, 2019, 145 (4), pp.EL317-EL322. ⟨10.1121/1.5099170⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2019, 145 (4), pp.EL317-EL322. ⟨10.1121/1.5099170⟩
A passive data-driven method to localize a defect in a structure using the ambient noise is derived. The approach requires only acoustic measurements in a spatially random noise field and no knowledge of the structure. Measurements are taken before a
Autor:
Earl G. Williams, Jit Sarkar, Simone Sternini, Sandrine T. Rakotonarivo, Alexis Bottero, William A. Kuperman
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2020, 148 (2), pp.734-747. ⟨10.1121/10.0001705⟩
Journal of the Acoustical Society of America, 2020, 148 (2), pp.734-747. ⟨10.1121/10.0001705⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2020, 148 (2), pp.734-747. ⟨10.1121/10.0001705⟩
Journal of the Acoustical Society of America, 2020, 148 (2), pp.734-747. ⟨10.1121/10.0001705⟩
This paper presents a method to calculate the bistatic response of an elastic object immersed in a fluid using its structural Green's function (in vacuo structural admittance matrix), calculated by placing the object in a spatially random noise field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26e7f8ccb4b569bc103e281955fa709c
https://hal.archives-ouvertes.fr/hal-03162666
https://hal.archives-ouvertes.fr/hal-03162666
Publikováno v:
The Journal of the Acoustical Society of America. 147(2)
A multiple constraint method (MCM) specifically designed to accommodate the uncertainty of array tilt is developed for matched field processing (MFP). Combining the MCM with the white noise gain constraint method results in a processor that is tolera
Autor:
William A. Kuperman, Franklin H. Akins
Publikováno v:
The Journal of the Acoustical Society of America. 150:A277-A277
We introduce range-coherent matched field processing (MFP) to lower the signal-to-noise ratio (SNR) threshold required to successfully localize a narrowband source in a well-characterized shallow water environment. To accomplish this, range-coherent
Publikováno v:
The Journal of the Acoustical Society of America. 150:A157-A157
The acoustic response of an object depends on the surrounding environment. We show here how to take advantage of a known elastic target located near the seabed to infer characteristics of marine sediment. The approach consists of several steps. First
Publikováno v:
The Journal of the Acoustical Society of America. 150:A66-A66
Autor:
William S. Hodgkiss, Jit Sarkar, Bruce D. Cornuelle, Heriberto J. Vazquez, William A. Kuperman, Jeffrey D. Tippman, Kay L. Gemba
Publikováno v:
The Journal of the Acoustical Society of America. 150:A278-A278
A moving source tomography experiment was conducted in 2016 off the coast of Southern California. From the travel time data extracted from the experiment, ocean sound speed and its uncertainty were estimated. The moving source poses extra complexity
Publikováno v:
The Journal of the Acoustical Society of America. 144(3)
The uncertainty of estimating relative channel impulse responses (CIRs) obtained using the radiated signature from a ship of opportunity is investigated. The ship observations were taken during a 1.4 km (11 min) transect in a shallow water environmen
Publikováno v:
Physics Today. 69:32-38
Though not yet widely implemented, the technique of monitoring the ocean’s warming via changes in the speed of sound through the water is a powerful complement to the more common tools available: free-floating thermometers and altimetry satellites.