Title :
The configuration of TSBB for Koreasat D-DBS (digital direct broadcasting satellite) system
Author :
Kim, Tae Kyoon ; Sohn, Won ; Noh, Seok Ho
Author_Institution :
Electron. & Telecommun. Res. Inst., Taejon, South Korea
fDate :
9/1/1997 12:00:00 AM
Abstract :
The TSBB (transmitter station baseband) is one of the main subsystems of the D-DBS system for Koreasat. It pre-processes, compresses, packetizes and multiplexes the program and data sources, and send the multiplexed output to the RF/IF module for transmission. The TSBB has the following characteristics: a video resolution of up to 720×480, optional usage of an aspect ratio between 4×3 and 16×9, closed captioning, and multiple languages (up to 4 languages). The TSBB employs MPEG-2 MP@ML for video compression, and MPEG-1 Layer II for audio compression. Data programs are available at up to 2 Mbps. The TSBB also scrambles programs for subscription and pay-per-view channels. We introduce the system requirements, system design and system implementation for the TSBB. We also show test results for the TSBB functions which include video/audio/data broadcasting and encoder/MUX configuration, and test results for the TSBB performance
Keywords :
audio coding; code standards; cryptography; data compression; digital television; direct broadcasting by satellite; image resolution; packet switching; telecommunication standards; television broadcasting; television transmitters; video coding; 2 Mbit/s; Koreasat D-DBS; MPEG-1 Layer II; MPEG-2 MP@ML; PACKET SWITCHING; RF/IF module; aspect ratio; audio broadcasting; audio compression; closed captioning; data broadcasting; data compression; data sources; digital direct broadcasting satellite system; multiple languages; multiplexing; pay per view channels; program sources; subscription channels; system design; test results; transmitter station baseband; video broadcasting; video compression; video resolution; Bit rate; Digital video broadcasting; Power system management; Radio frequency; Resource management; Satellite broadcasting; System testing; TV; Transform coding; Video compression;
Journal_Title :
Broadcasting, IEEE Transactions on
