Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Steve Hammel"'
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans VI.
Our ability to generate an accurate vertical profile characterizing the atmosphere from the surface to a point above the boundary layer top is quite rudimentary. The region from a land or sea surface to an altitude of 3000 meters is dynamic and parti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14617e2b752592543e5df897afb480c4
https://doi.org/10.1117/12.2276631
https://doi.org/10.1117/12.2276631
Autor:
Ana Ascencio, Steve Hammel, Eric Hallenborg, Galen Cauble, Kevin McBryde, Dimitri Tsintikidis, David T. Wayne, John Stephen deGrassie, Kristofor B. Gibson, Joshua J. Rudiger, Colin N. Reinhardt
Publikováno v:
SPIE Proceedings.
The Navy is actively developing diverse optical application areas, including high-energy laser weapons and free- space optical communications, which depend on an accurate and timely knowledge of the state of the atmospheric channel. The Optical Chann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eed45c65001bc7d8d25ec4a7d6b9a7f
https://doi.org/10.1117/12.2178135
https://doi.org/10.1117/12.2178135
Publikováno v:
SPIE Proceedings.
The characterization of atmospheric effects on a propagated laser beam is important to applications ranging from free-space optical communications to high-energy laser systems for ship defense. These applications are frequently developed for a dynami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fea62728865f58677fb4049317a6d80b
https://doi.org/10.1117/12.2064395
https://doi.org/10.1117/12.2064395
Publikováno v:
SPIE Proceedings.
We investigate the effects of beam wander on an uncorrected laser system. The goal is to enable an accurate assessment of irradiance at a receiver or target for a shipboard laser system, and in this paper we show that a maritime surface layer turbule
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80993f5fa1338c47005322f22f6ba96e
https://doi.org/10.1117/12.896597
https://doi.org/10.1117/12.896597
Autor:
Steve Hammel, Dirk-Jan J. de Lange, Alexander M. J. van Eijk, M.A.C. Degache, Dimitris Tsintikidis
Publikováno v:
SPIE Proceedings.
The FATMOSE trial (FAlse-bay ATMOSpheric Experiment) running over a period from November 2009 to July 2010, was a continuation of the cooperation between TNO and IMT on atmospheric propagation and point target detection and identification in a mariti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3131f7beac4127b01c99c0b2c5a970f3
https://doi.org/10.1117/12.868184
https://doi.org/10.1117/12.868184
Autor:
Steve Hammel, Daniel Kichura
Publikováno v:
SPIE Proceedings.
In December 2006, a 17-day propagation field experiment was conducted on a near-sea-surface 7.07 kilometer path over the Pacific Ocean outside San Diego Bay. This test offered an opportunity to compare the results from incoherent optical instruments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bcf5b0fa2a49221770a9d0957993472
https://doi.org/10.1117/12.798767
https://doi.org/10.1117/12.798767
Autor:
Steve Hammel
Publikováno v:
Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ecf5845436027315efd4219c2f5633d
https://doi.org/10.1117/12.735906
https://doi.org/10.1117/12.735906
Publikováno v:
SPIE Proceedings.
An infrared (IR) signal propagating along a 'line-of-sight' horizontal or slant path within the marine surface layer can encounter substantial perturbations. These perturbations include signal extinction due to molecules or aerosol particles; refract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a111a99e15b06afa8315b6a22c4d028d
https://doi.org/10.1117/12.683092
https://doi.org/10.1117/12.683092
Publikováno v:
Atmospheric Optical Modeling, Measurement, and Simulation, edited by Stephen M. Doss-Hammel, Anton Kohnle, Proc. of SPIE Vol. 5891, 58910G, August 2005.
The Navy Aerosol Model (NAM, available in MODTRAN) is widely used as a tool to assess the aerosol extinction in the marine atmospheric surface layer. NAM was built as a regression model in the 1980s to represent the aerosol extinction at deck height
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b549507d514e6514167e4e669573aa27
https://doi.org/10.1117/12.618931
https://doi.org/10.1117/12.618931
Publikováno v:
SPIE Proceedings.
EOSTAR, a PC based Windows application, integrates the required modules necessary to calculate the electro-optical sensor performance on the basis of standard meteorological data. The primary output of EOSTAR consists of the synthetic sensor image (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f634c9c8e348e9710292795b9458b9d
https://doi.org/10.1117/12.614884
https://doi.org/10.1117/12.614884