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pro vyhledávání: '"Messerschmitt, David G."'
Autor:
Messerschmitt, David G.
Microwave digital communication at interstellar distances applies to starship and extraterrestrial civilization (SETI and METI) communication. Large distances demand large transmitted power and/or large antennas, while the propagation is transparent
Externí odkaz:
http://arxiv.org/abs/1402.1215
Autor:
Messerschmitt, David G.
Publikováno v:
Acta Astronautica, Feb.-March 2015
Radio communication over interstellar distances is studied, accounting for noise, dispersion, scattering and motion. Large transmitted powers suggest maximizing power efficiency (ratio of information rate to average signal power) as opposed to restri
Externí odkaz:
http://arxiv.org/abs/1305.4684
Autor:
Messerschmitt, David G.
Publikováno v:
Acta Astronautica, Dec 2012, Vol 81, Issue 1, p. 227
Spread spectrum, widely employed in modern digital wireless terrestrial radio systems, chooses a signal with a noise-like character and much higher bandwidth than necessary. This paper advocates spread spectrum modulation for interstellar communicati
Externí odkaz:
http://arxiv.org/abs/1111.0547
Publikováno v:
In Acta Astronautica September-October 2012 78:80-89
Akademický článek
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Akademický článek
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Publikováno v:
Messerschmitt, David G; & Morrison, Ian S. (2011). Design of Interstellar Digital Communication Links: Some Insights from Communication Engineering. Acta Astronautica, 78(1), 80-89. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/4w59f2wk
The design of an end-to-end digital interstellar communication system at radio frequencies is discussed, drawing on the disciplines of digital communication engineering and computer network engineering in terrestrial and near-space applications. One
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::34c758bb98ae7566f4753ee2b45180e3
http://www.escholarship.org/uc/item/4w59f2wk
http://www.escholarship.org/uc/item/4w59f2wk
Autor:
Messerschmitt, David G, Stuck, Bart
Publikováno v:
Messerschmitt, David G; & Stuck, Bart. (2008). Effective communication: the what, why, and how of entrepreneurship. IEEE Signal Processing Magazine, 25(4), 105-109. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/8ps6s6pj
Entrepreneurship is increasing in importance and presents a good career opportunity for engineering students. Engineering schools should imbue an understanding of entrepreneurship, knowledge of why it is important, and a sense of how students might g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::9a9eb8c6da6f867a9b6df52f93ea8709
http://www.escholarship.org/uc/item/8ps6s6pj
http://www.escholarship.org/uc/item/8ps6s6pj