HDT-02_H.264
High Definition Digital Camera Transmitter
MANUAL V9.9
221
Figure E.7: ACM mode
Another features implemented in the DVB-S2 standard are:
•
Sharper roll-off factors which results in a direct gain of bandwidth.
•
The ability to carry several signals on a single satellite carrier, without
multiplexing in front of the modulator. This is called Multi-Stream.
•
The ability to carry signals other than MPEG transport stream. This is
called Generic Stream.
E.4.2
Pilots in DVB-S2
Pilots are unmodulated symbols grouped in blocks that can be added on the
physical layer framing level.
Pilots are used to:
•
Reduce the phase noise influence. Phase noise is created by the
frequency components around the main carrier frequency. This noise
contains components at many frequencies with randomly changing
phase.
•
Pilots are used to increase the reliability and the continuous receiver
synchronization.
Summary of Contents for HDT-02
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Page 26: ...HDT 02_H 264 High Definition Digital Camera Transmitter MANUAL V9 9 26 Chapter 3 How to order ...
Page 183: ...HDT 02_H 264 High Definition Digital Camera Transmitter MANUAL V9 9 183 10 6 CLTX 01 Support ...
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Page 231: ...HDT 02_H 264 High Definition Digital Camera Transmitter MANUAL V9 9 231 Notes ...