Introduction to Digital TV Transmission Technique
1–4
MTD200 MPEG Test Decoder User Manual
Transmission Scenario for DVB
Figure 1–1 illustrates a possible transmission scenario for DVB. ‘TS’ indicates
the interfaces for the transport stream. The transport stream is the output and
input interface of the MPEG test generator and the MPEG test decoder. At any of
these interfaces, signals from the MPEG test generator can be fed in or applied to
the MPEG test decoder for analysis and decoding. A TS analysis is of vital
importance after every TS multiplexer. A program can run through several
multiplexers if, for example, programs from different transmission paths are
combined and sent on a new path.
Transport
stream
multiplexer
Programs
Video
Audio
Data
TS = Transport stream interface
Modulator
Receiver
Data
services
Video on
demand
server
Broadband
cable (BK)
Processing
similar to
cable head
station
Terrestrial
reception
Feed of terrestrial
transmitter
Video
Audio
Data
TS
Receiver
Transmultiplexer
TS
TS
TS
Data
Cable head station
Direct satellite
reception
Modulator
TS
Figure 1–1: Scenario for a DVB distribution network
Summary of Contents for MTD200
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