Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Ralph R. Goodman"'
Publikováno v:
The Journal of the Acoustical Society of America. 106:617-625
An experiment was performed just off the research pier at the Scripps Institute of Oceanography to determine the acoustic effects of small bubbles in very shallow water (∼6 m depth). The distance offshore was ∼300 m. The propagation lengths were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c84a5ce70fe4f00b51c508dcbecd418e
https://doi.org/10.1121/1.427030
https://doi.org/10.1121/1.427030
Publikováno v:
The Journal of the Acoustical Society of America. 106:185-189
A precise theory exists, based on an integral equation, by which acoustic signal attenuation versus frequency, due to a known bubble-density distribution versus bubble radius, may be calculated. Lacking a simple inversion scheme for the integral equa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f75ce4806684dba2b4d1946347243066
https://doi.org/10.1121/1.427047
https://doi.org/10.1121/1.427047
Autor:
Steven L. Means, Ralph R. Goodman
Publikováno v:
The Journal of the Acoustical Society of America. 102:335-341
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e4ddff99b19c483db22b20bc89b2775
https://doi.org/10.1121/1.419756
https://doi.org/10.1121/1.419756
Autor:
Timothy H. Ruppel, Ralph R. Goodman, Marcia A. Wilson, Roger W. Meredith, Steve Stanic, E. Kennedy, Guy V. Norton
Publikováno v:
AIP Conference Proceedings.
Initial results of broadband (1 to 10 kHz) spatial coherence measurements taken during the June 2003 shallow‐water (8 m) propagation experiments will be presented. The results will show spatial coherence estimates over a 12 m long horizontal array
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c1bbc16af6c1cad541929a7ec7621ce
https://doi.org/10.1063/1.1843035
https://doi.org/10.1063/1.1843035
Autor:
Howard Chandler, E. Kennedy, Roger W. Meredith, Robert A. Fisher, Dexter Malley, Ralph R. Goodman, Steve Stanic, Richard Ray, Bob Brown
Publikováno v:
AIP Conference Proceedings.
In June 2003 a series of acoustic propagation experiments were conducted off the coast of Panama City, Florida. The experiments were designed to measure and provide an understand of signal phase and amplitude fluctuations, and signal spatial and temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9917b7f40a1943791a0b2c22f292f02e
https://doi.org/10.1063/1.1843033
https://doi.org/10.1063/1.1843033
Publikováno v:
The Journal of the Acoustical Society of America. 125:2611-2611
A series of three CW‐pulsed signals were transmitted across a surface ship wake as the wake aged. Each transmission contained a set of four 0.5‐ms‐long pulses that ranged over frequencies from 30 to 140 kHz in 10‐kHz steps. The acoustic atten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0a39fa1e070488ee2dd9e1d42b85332
https://doi.org/10.1121/1.4783949
https://doi.org/10.1121/1.4783949
Publikováno v:
The Journal of the Acoustical Society of America. 119:3274-3274
It is well known that bubbles, even in small numbers, cause significant changes in the acoustic properties of seawater. In shallow water bubbles enter the sea, either by wind‐driven breaking waves or by surf‐induced rip currents. Both have been o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06560fae5b7ba35c4a3daa40bb644ec3
https://doi.org/10.1121/1.4786161
https://doi.org/10.1121/1.4786161
Publikováno v:
The Journal of the Acoustical Society of America. 99:2573-2574
A preliminary investigation using cold water from melting ice to induce sound‐speed fluctuations has shown significant effects on both one‐way and two‐way propagation. Although the melting ice approach is simple and effective, it is not easily
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3c69da7f39274b03db17bde1cd539cc
https://doi.org/10.1121/1.415076
https://doi.org/10.1121/1.415076
Publikováno v:
The Journal of the Acoustical Society of America. 114:2311-2311
The dependence of probability density functions on patch size for high‐resolution backscattering, change detection techniques, and implications for scattering models for high‐resolution systems are discussed. Data used in these analyses were coll
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5601eb476fee9e171b0046bd666a795
https://doi.org/10.1121/1.4780933
https://doi.org/10.1121/1.4780933
Autor:
Jerald W. Caruthers, Ralph R. Goodman
Publikováno v:
The Journal of the Acoustical Society of America. 114:2372-2372
At the 145th Meeting of the Acoustical Society the authors presented a paper on the dispersion and absorption of sound in an idealized bubble field that had a bubble radius size distribution n(a) decreasing as the fourth power [J. Acoust. Soc. Am. 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebe68f26b551e74092f2a546757f73c6
https://doi.org/10.1121/1.4777293
https://doi.org/10.1121/1.4777293