Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Hermann Bischl"'
Publikováno v:
International Journal of Satellite Communications and Networking. 39:92-107
A geographical routing scheme for LEO satellite constellations with intersatellite links is proposed, implemented, and analyzed for two Walker Star constellations. The approach targets reliable transmissions with low latency and high data rates even
Autor:
Norman Kranich, Hartmut Brandt, Zoltán Katona, Anton Donner, Martin Brück, Hermann Bischl, Michael Gräßlin
From a geostationary Earth orbit (GEO) satellite's perspective a low Earth orbit (LEO) satellite is visible on more than half of its orbit. Albeit the free-space loss of an inter-satellite link is much higher than the one of a direct ground link, con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::066a12143547752b3f16966f1da7864a
https://elib.dlr.de/131088/
https://elib.dlr.de/131088/
Autor:
P. Martin Pimentel, Ramon Mata-Calvo, Ricardo Barrios, Janis Surof, Balazs Matuz, R. Mahn, Andrew P. Reeves, Hermann Bischl, H. Brandt, Karen Saucke, F. Heine
Publikováno v:
International Conference on Space Optics — ICSO 2018.
After more than 3 years of operational experiences with the Transportable Adaptive Optical Ground Station (T-AOGS) it is not any more the question whether optical communication through atmosphere is possible for Geo to ground applications. It is impo
Autor:
Frank Heine, Rolf Meyer, Patricia Martin Pimentel, Karen Saucke, Balazs Matuz, Christoph Rochow, Michael Lutzer, Hermann Bischl, Daniel Tröndle
The paper reports on the deployment of the first commercial optical data relay system, the European Data Relay System (EDRS), the achieved performance so far, and the progress in the characterization of optical bi-directional space to ground links pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daaffa76531cd702066d3943e4e5b36e
https://elib.dlr.de/118980/
https://elib.dlr.de/118980/
Autor:
Ines Richter, Christoph Marquardt, F. Heine, Matthias Motzigemba, Dominique Elser, Hennes Henninger, Rolf Meyer, Zoran Sodnik, Karen Saucke, Daniel Troendle, Hermann Bischl
Optical ground stations can be an alternative to radio frequency based transmit (forward) and receive (return) systems for data relay services and other applications including direct to earth optical communications from low earth orbit spacecrafts, d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2def97fbf1a500e7ea0bcf20ce5d1d82
https://elib.dlr.de/111010/
https://elib.dlr.de/111010/
Publikováno v:
ASMS/SPSC
The Next Generation Regenerative On Board Processor (NGROBP) is an ESA sponsored program led by Space Engineering. The activity objectives are to investigate the next generation of satellite OBP hosted payloads for high speed security and institution
Publikováno v:
CEAS Space Journal. 2:75-83
While Network Coding has been extensively studied from a theoretical point of view, the number of practical implementations is still very limited. We have performed an actual demonstration of this technique in a real satellite network, where Network
Autor:
Marc Emmelmann, F. Krepel, Achim Dreher, Erich Lutz, Petia Todorova, L. Richard, Markus Werner, Hartmut Brandt, Hermann Bischl, J. Bostic
Publikováno v:
International Journal of Satellite Communications and Networking. 23:1-32
Future broadband satellite networks for multimedia will be seamlessly integrated into terrestrial broadband networks which often use asynchronous transfer mode (ATM) and recently also the less complex multi protocol label switching (MPLS) technique a
Autor:
Janez Bostič, Axel Jahn, H. Ernst, Cecilia Delucchi, Matthias Holzbock, Hermann Bischl, Markus Werner, Erich Lutz
Publikováno v:
European Transactions on Telecommunications. 10:623-636
Within the next years, a large number of new satellite systems for broadband multimedia communications will be developed, mainly for fixed terminals, but to a lesser degree also for portable and mobile terminals. The most important systems will be ba
Autor:
Hermann Bischl, Erich Lutz
Publikováno v:
IEEE Transactions on Communications. 43:1375-1382
Two analytical methods for determining the packet error rate in the non-interleaved Rayleigh fading channel are presented. The first method is an exact evaluation of the packet error rate, whereas the second method is based on a k-state digital chann