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DVB-S2 is designed for broadcast services including standard and HDTV, interactive services including Internet access, and (professional) data content distribution. The development of DVB-S2 coincided with the introduction of HDTV and H.264 (MPEG-4 AVC) video codecs. Two new key features that were added compared to the DVB-S standard are:
Generic Stream Encapsulation, or GSE for short, is a Data link layer protocol defined by DVB.GSE provides means to carry packet oriented protocols such as IP on top of uni-directional physical layers such as DVB-S2, DVB-T2 and DVB-C2.
Digital Video Broadcasting – Satellite (DVB-S) is the original DVB standard for satellite television and dates from 1995, in its first release, while development lasted from 1993 to 1997. The first commercial applications were by Canal+ in France [ citation needed ] and Galaxy in Australia, enabling digitally broadcast, satellite-delivered ...
DVB-S2X is an extension of DVB-S2 satellite digital broadcasting standard. It was standardized by DVB Project [ 1 ] in March 2014 as an optional extension of DVB-S2 standard. [ 2 ] It became an ETSI standard.
Minisatip is an open source software implementing a SAT>IP server application that runs under Linux. It was tested with DVB-S, DVB-S2, DVB-T, DVB-T2, DVB-C, DVB-C2, ATSC DVB cards. SatPI: SatPI is an open source project that implements a SAT>IP server application that runs under Linux. It currently supports DVB-S/S2/T/C cards.
The resilience of APSK to amplifier and channel non-linearities afforded by its low PAPR have made it especially attractive for satellite communications, including DVB-S2. [3] A modified constellation diagram of 16-APSK. Typically 16-APSK will have 15 degree phase offset on the outer ring, which is not depicted here.
Also unlike DVB, all DSS receivers are proprietary DirecTV reception units. DirecTV is now using a modified version of DVB-S2, the latest version of the DVB-S protocol, for HDTV services off the SPACEWAY-1, SPACEWAY-2, DirecTV-10 and DirecTV-11 [2] satellites; however, huge numbers of DSS encoded channels still remain. The ACM modulation scheme ...
One-way satmodems (DVB-IP modems) use a return channel not based on communication with the satellite, such as telephone or cable. Two-way satmodems ( DVB-RCS modems, also called astromodems ) employ a satellite-based return channel as well; they do not need another connection.
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