Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Carmen Ullwer"'
Autor:
Erik Sucher, Sven A. van Binsbergen, Carmen Ullwer, Alexander M. J. van Eijk, Karin Stein, Detlev Sprung
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems V.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb488350ca3b46f3b97f9aeb0013ef59
https://doi.org/10.1117/12.2638774
https://doi.org/10.1117/12.2638774
Autor:
Erik Sucher, Sven Binsbergen, Carmen Ullwer, Detlev Sprung, Alexander M. van Eijk, Karin Stein
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems V.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bab370d9d72f353ca9107662d94a94e
https://doi.org/10.1117/12.2636241
https://doi.org/10.1117/12.2636241
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems IV.
We report the analysis of radio soundings launched at our permanent measurement site in North-western Germany. The data of potential temperature and wind speed are used to derive vertical profiles of the gradient Richardson number 𝑅𝑖𝑔 in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55172bb80a910b59766e999a86ab93b0
https://doi.org/10.1117/12.2600251
https://doi.org/10.1117/12.2600251
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems III.
Military operations in arid regions of the world are becoming more and more regular. The atmospheric conditions in these regions impose severe restrictions on the performance of optical systems. In contrast to regions, where many airports are located
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::248d46f30364c63feb7da846ab4497d5
https://doi.org/10.1117/12.2571061
https://doi.org/10.1117/12.2571061
Autor:
Detlev Sprung, Thomas Kociok, Erik Sucher, Alexander M. J. van Eijk, Karin Stein, Carmen Ullwer
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems III.
Our aim is to characterize the optical turbulence over the urban areas. Since it is difficult to measure 𝐶2/𝑛 (see PDF) continuously over an urban area, we explore the possibility of using a mesoscale weather prediction model to predict 𝐶2/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5be66db676e7367f887a7e228f776044
https://doi.org/10.1117/12.2572997
https://doi.org/10.1117/12.2572997
Autor:
Peter Grossmann, Karin Stein, Erik Sucher, Carmen Ullwer, Detlev Sprung, Thomas Kociok, Alexander M. J. van Eijk
Publikováno v:
Proceedings of SPIE-The International Society for Optical Engineering, Laser Communication and Propagation through the Atmosphere and Oceans VIII 2019, 13 August 2019 through 15 August 2019
Electro-optical and laser systems are operated world-wide. Their performance in the outside atmosphere is mainly governed by the strength of optical turbulence Cn2. The predictability of Cn2 using weather-forecast models is investigated by performing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b119bcdda8b4bb3ff12456cb39442308
http://resolver.tudelft.nl/uuid:58aac301-2f79-4c9f-9175-7677ab9f2b95
http://resolver.tudelft.nl/uuid:58aac301-2f79-4c9f-9175-7677ab9f2b95
Autor:
Erik Sucher, Sven A. van Binsbergen, Piet Bijl, Carmen Ullwer, Detlev Sprung, Dirk Seiffer, Thomas Kociok, Christian Eisele
Publikováno v:
Proc. SPIE, Environmental Effects on Light Propagation and Adaptive Systems II, 9 October 2019, 11153
In the framework of a NATO research group Fraunhofer IOSB and partners conducted a field trial in an arid shrub land environment in southern New Mexico (USA). The group investigates environmental limitations of fielded EO-TDAs (Electro-Optical Tactic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f4e79f7dca6d48ba4a94a4b1326f5a5
http://resolver.tudelft.nl/uuid:154c7092-eab6-4deb-abb7-df61e982cc42
http://resolver.tudelft.nl/uuid:154c7092-eab6-4deb-abb7-df61e982cc42
Autor:
Detlev Sprung, Carmen Ullwer, Dirk Seiffer, Alexander M. J. van Eijk, Willi Gunter, Christian Eisele, Erik Sucher, Karin Stein
Publikováno v:
Environmental Effects on Light Propagation and Adaptive Systems 2018, 12 September 2018 through 13 September 2018, Gladysz, S.Stein, K.U., Proceedings of SPIE-The International Society for Optical Engineering, 10787
The atmospheric influence on wave propagation was investigated during the First European South African Transmission ExpeRiment from June 2015 to February 2016. The focus in this article was set on optical turbulence, the main atmospheric factor affec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6aa63979a491f41931129df069d259c7
https://doi.org/10.1117/12.2325609
https://doi.org/10.1117/12.2325609
Publikováno v:
Gladysz S.Stein K.U., Optics in Atmospheric Propagation and Adaptive Systems XX 2017. 13 September 2017 through 14 September 2017, 10425
Atmospheric turbulence impacts on the propagation of electro-optical radiation. Typical manifestations of optical turbulence are scintillation (intensity fluctuations), beam wander and (for laser systems) reduction of beam quality. For longer propaga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ac70ddf020d5a8b9f644f0b31893cb5
http://resolver.tudelft.nl/uuid:0441b565-4888-4754-9f5f-a5cd64fc74c1
http://resolver.tudelft.nl/uuid:0441b565-4888-4754-9f5f-a5cd64fc74c1