- Multiple Access Communication Satellites
- Космонавтика: (USA) спутники связи с многоканальным доступом
Универсальный англо-русский словарь. Академик.ру. 2011.
Multiple Access Communication Satellites
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Code Division Multiple Access — (abrégé en CDMA, la commission générale de terminologie et de néologie propose le terme accès multiple par répartition en code, abrégé en AMRC), est un système de codage des transmissions, utilisant la technique d étalement de spectre. Il permet… … Wikipédia en Français
Code division multiple access — Générations et normes de téléphonie mobile 0G PTT MTS IMTS AMTS 0,5G Autotel/PALM ARP 1G NMT AMPS Hicap CDPD Mobitex DataTac TACS RC2000 C NETZ Comvik NTT … Wikipédia en Français
Frequency-division multiple access — or FDMA is an channel access method that is used by radio systems to share a certain radio spectrum between multiple users. The users are individually allocated one or several frequency bands, allowing them to access the radio system without… … Wikipedia
Channel access method — In telecommunications and computer networks, a channel access method or multiple access method allows several terminals connected to the same multi point transmission medium to transmit over it and to share its capacity. Examples of shared… … Wikipedia
Satellite Internet access — Satellite Internet services are used in locations where terrestrial Internet access is not available and in locations which move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land… … Wikipedia
Conditional access — (abbreviated CA) is the protection of content by requiring certain criteria to be met before granting access to this content. The term is commonly used in relation to digital television systems, most notably satellite television. Contents 1… … Wikipedia
space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… … Universalium
mobile telephone — Introduction also called mobile phone portable device for connecting to a telecommunications network in order to transmit and receive voice, video, or other data. Mobile phones typically connect to the public switched telephone network (PSTN)… … Universalium
telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… … Universalium
Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals … Wikipedia
Norme de télécommunication — Télécommunications Alexander Graham Bell Les télécommunications sont définies comme la transmission à distance d’informations avec des moyens à base d électronique et d informatique. Ce terme a un sens plus large que son acception équivalente… … Wikipédia en Français
