Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Reinhard Keller"'
Publikováno v:
2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC).
In this paper we present an overview of Software Defined Radio (SDR) application in a single dish Radio Astronomy observatory. Different SDR hardware is investigated and tested towards usage especially for RFI detection. In a first step two kinds of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::749f2949fd3c30be0c38e0db355c44c1
https://doi.org/10.1109/ursi-at-rasc.2015.7303211
https://doi.org/10.1109/ursi-at-rasc.2015.7303211
Autor:
Steve Torchinsky, Reinhard Keller, Stefan J. Wijnholds, P. Benthem, E. van der Wal, Stelio Montebugnoli, M. Ruiter, Gideon W. Kant, P. Picard
Publikováno v:
Proceedings of Wide Field Astronomy & Technology for the Square Kilometre Array — PoS(SKADS 2009).
The Electronic Multi-beam Radio Astronomy Concept (EMBRACE) is the first full-scale prototype of an SKA phased array station. This single polarization demonstrator operates between 500 and 1500 MHz. The station that is currently being built at the si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f5a0ce446b260dd41b6e3f6a3d5a1f6
https://doi.org/10.22323/1.132.0043
https://doi.org/10.22323/1.132.0043
Autor:
Henrik Olofsson, Stelio Montebugnoli, Jean Michel Martin, Stefan J. Wijnholds, Jan E. Noordam, P. Picard, Steve Torchinsky, Laurent Chemin, Severin Barth, Gideon W. Kant, C. Taffoureau, Reinhard Keller, Stephane Bosse, W. Paule, S. Pomarede, P. Renaud
Publikováno v:
Scopus-Elsevier
All rights reserved. The L2C carriers of multiple GPS satellites have been used to trace out a nearly complete beam pattern out to 45 away from the main lobe centre for a horizontally mounted single EMBRACE tile. The beam was formed along its bore-si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b81b3e262693097da85c96b1cf17f82f
https://doi.org/10.22323/1.132.0042
https://doi.org/10.22323/1.132.0042
Publikováno v:
25th European Microwave Conference, 1995.
A very fast and reliable analysis and optimization tool for complex waveguide structures is presented, wich combines the rigorous mode matching technique with nodal analysis. By this the advantages of both rigorous and fast calculation of waveguide d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e803490a44e9d4a123a232f770bcf51d
https://doi.org/10.1109/euma.1995.336995
https://doi.org/10.1109/euma.1995.336995
Autor:
Fritz Arndt, Reinhard Keller
Publikováno v:
24th European Microwave Conference, 1994.
A rigorous field theory analysis is presented for the accurate design of rectangular iris, coupled circular waveguide single, double and triple mode filters. The multi mode coupling between the orthogonal modes is achieved by a new technique using ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a607abd752a886a80c2238e26e4daae
https://doi.org/10.1109/euma.1994.337400
https://doi.org/10.1109/euma.1994.337400
Publikováno v:
Frequenz. 48
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b8a418bb647fc8cbc88d0d618c36836
https://doi.org/10.1515/freq.1994.48.11-12.242
https://doi.org/10.1515/freq.1994.48.11-12.242
Publikováno v:
Frequenz. 48
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed528e90be87503461aa18f9b0409d09
https://doi.org/10.1515/freq.1994.48.11-12.249
https://doi.org/10.1515/freq.1994.48.11-12.249
Publikováno v:
Handbook of Environmental Chemistry; 2004, Vol. 4F, p149-177, 29p
Publikováno v:
18th European Microwave Conference, 1988.
A new type of waveguide band-pass filter has been realized by combining a corrugated low-pass structure and a high-pass configuration based on the cut-off effect. Low-pass and high-pass functions depend on each other. Therefore after an initial stand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14bc286622a4a22ade47eed3c9dabc37
https://doi.org/10.1109/euma.1988.333930
https://doi.org/10.1109/euma.1988.333930
Publikováno v:
17th European Microwave Conference, 1987.
Corrugated-waveguide low-pass filters are analysed by successive reflection coefficient transformations. The discontinuities are modelled by waveguide equivalent circuits, including interaction of higher order modes. The filter response is determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e40ed836a84e0781041b0fa24962fc25
https://doi.org/10.1109/euma.1987.333718
https://doi.org/10.1109/euma.1987.333718