Results 51 to 60 of about 22,923 (213)
Recent development and its prospect of satellite communications
Tongxin xuebao, 2015 After analyzing the characteristics of satellite communications,the developing status of communication satellite platform,available frequency resource,as well as the related key techniques are summarized.Through introducing some typical satellite ...
Ke-chu1 YI +3 more
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Determination of Vibrational Population Distribution for the N2+ (1N) Ion Band System from Spacelab 1 [PDF]
Journal of Astronomy and Space Sciences, 1989 The Spacelab 1 data represented the first multiband spectral measurements of the N2+ first negative ion bands system in the thermospheric dayglow, and the first opportunity to make a detailed comparison of the vibrational and rotational distributions ...
Jong Won Eun
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A System Design and Analysis for Satellite Communication Link [PDF]
Journal of Astronomy and Space Sciences, 2000 A satellite RF communication link is analyzed based on a simple fundamental equations by systematic approach in this paper. The number of variables related to a design and analysis of satellite RF link is often a dozen or more, thus it is a tedious and ...
Tae Jin Chung, Jong Won Eun
doaj
Partially adaptive baeam-forming maethods based on genetic algorithms
Tongxin xuebao, 2006 An improved genetic algorithm（GA） for real time beam-forming of onboard planar array was presented. In or-der to meet the real-time processing requirements, this GA was combined with partially adaptive beam-forming tech-niques in the phase-only adaptive ...
JIN Jun1, WANG Hua-li1, LIU Miao2
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Report on the Sixth International Conference on Digital Satellite Communications [PDF]
, 1983 A. L. Stimson
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Satellite communications, Robert M. Gagliardi, Lifetime Learning, Belmont, CA, 1984. No. of pages: 474. Price:$39.00 [PDF]
, 1984 R. LIU
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Circuit-switch architecture for a 30/20-GHz FDMA/TDM geostationary satellite communications network [PDF]
, 1992 WILLIAM IVANCIC
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, 2010 We applied Chu and Hogg’s key cloud attenuation results to Italsat observations (9) and cloud water analysis (11) to estimate worldwide laser attenuation for satellite- ground communication links. Section 3 gave worldwide zenith attenuation estimates for 80% availability, 90% availability, and 70% availability.
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