Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Thomas E. Giddings"'
Autor:
Anthony R. Kellems, Thomas E. Giddings
Publikováno v:
Applied optics. 55(24)
The reflected and transmitted radiance due to a source located above a water surface is computed based on models for radiative transfer in continuous optical media separated by a discontinuous air–water interface with random surface roughness. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f23a7a0eef056f7e2a1bd918d82f9f2b
https://pubmed.ncbi.nlm.nih.gov/27556978
https://pubmed.ncbi.nlm.nih.gov/27556978
Autor:
Thomas E. Giddings, Joseph J. Shirron
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 196:279-288
We present a finite element model for acoustic scattering from an elastic object situated near (or intersecting) the surface separating two fluid domains, each of semi-infinite extent. The fluid domains are truncated using a perfectly matched layer (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a37b4fb07e5ad31c411a5e2e26cacad
https://doi.org/10.1016/j.cma.2006.07.009
https://doi.org/10.1016/j.cma.2006.07.009
Autor:
Joseph A. Bucaro, P. Runkle, Hongwei Liu, Luise S. Couchman, Timothy J. Yoder, Lawrence Carin, Thomas E. Giddings
Publikováno v:
The Journal of the Acoustical Society of America. 115:1185-1197
Identification algorithms are considered for a class of targets situated near the bottom of a water channel. It is assumed that the target-sensor distance relative to the channel depth is such that a ray-based representation of the scattered fields i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be85e41cf4a58cbe9e466d1a556b469b
https://doi.org/10.1121/1.1643363
https://doi.org/10.1121/1.1643363
Publikováno v:
Journal of Fluid Mechanics. 429:255-280
The interaction of weak shock waves with small heterogeneities in gaseous media is studied. It is first shown that various linear theories proposed for this problem lead to pathological breakdowns or singularities in the solution near the wavefront a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04f6b15b67372a537b9ec6bd0752d688
https://doi.org/10.1017/s0022112000002779
https://doi.org/10.1017/s0022112000002779
Publikováno v:
International Journal for Numerical Methods in Engineering. 50:2069-2091
A stabilized finite element formulation for the transonic small-disturbance system of equations is developed and used to solve a variety of problems in transonic aerodynamics. An adaptive mesh refinement technique and a common discontinuity capturing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf1910b53b4db7d692125b88f81f414d
https://doi.org/10.1002/nme.110
https://doi.org/10.1002/nme.110
Publikováno v:
AIAA Journal. 33:977-984
A new transonic small-disturbance model to analyze the interactions of freestream disturbances with a weak shock has been developed. The model equation has an extended form of the classic small-disturbance equation for unsteady transonic aerodynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::287237156665797db7d4ebf1efa0f526
https://doi.org/10.2514/3.12517
https://doi.org/10.2514/3.12517
Publikováno v:
2012 Oceans.
The need for midrange, high throughput data networks in the undersea environment is evident for a variety of applications, including sensor networks and remote control and telemetry for unmanned underwater vehicles. While research continues into unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecea365ab1de1776c670170313a257a0
https://doi.org/10.1109/oceans.2012.6404911
https://doi.org/10.1109/oceans.2012.6404911
Autor:
Anni K. Vuorenkoski, Fraser Dalgleish, Joseph J. Shirron, Frank M. Caimi, Thomas E. Giddings, Bing Ouyang
Publikováno v:
SPIE Proceedings.
Recent progress in system hardware such as laser, photon detectors and other electronic and optical components resulted in significant improvement for the underwater serial laser imaging system. Nevertheless, during normal system operation, system is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b05a3b9630eace4ce1a8aca6409117ed
https://doi.org/10.1117/12.920710
https://doi.org/10.1117/12.920710
Autor:
Walter Britton, Brian Ramos, Joseph J. Shirron, Frank M. Caimi, Anni K. Vuorenkoski, Thomas E. Giddings, Gero Nootz, Bing Ouyang, Fraser Dalgleish
Publikováno v:
Laser Radar Technology and Applications XVI.
The compressive sensing (CS) theory has drawn great interest in signal processing community in recent years and led to new image acquisition techniques in many different fields. This research attempts to develop a CS based underwater laser serial ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fda8bdbfec76ba4e6aa49283b9923d87
https://doi.org/10.1117/12.884156
https://doi.org/10.1117/12.884156
Autor:
Walter Britton, Thomas E. Giddings, Anni K. Vuorenkoski, Charles H. Mazel, Brian Ramos, Fraser Dalgleish, Joseph J. Shirron, Frank M. Caimi
Publikováno v:
Ocean Sensing and Monitoring II.
The objective of this work was to develop and validate approaches to accurately and efficiently model channel characteristics in a range of environmental and operational conditions for underwater laser communications systems that use high frequency a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7252e2cdf85c3833a72cdc134d54ee8b
https://doi.org/10.1117/12.854775
https://doi.org/10.1117/12.854775