W6156A Datasheet, PDF (4/14 Pages) Keysight Technologies – N6156A & W6156A

04 | Keysight | DTMB (CTTB) X-Series Measurement Application N6156A & W6156A - Technical Overview
Technology Overview
Digital terrestrial/television multi-
media broadcasting (DTMB), also
known as China terrestrial television
broadcasting (CTTB), is the Chi-
nese national terrestrial digital TV
broadcasting standard which was
announced on August 18, 2006 and
implemented from August 1, 2007.
DTMB supports both multi-carrier
(C=3780) and single-carrier (C=1)
modulation scheme. Both schemes
use low density parity check (LDPC)
coding in forward error correction
(FEC), which can provide superior
error correction capability for a bet-
ter sensitivity especially at higher
code rate. Time domain synchronized
orthogonal frequency division multi-
plexing (TDS-OFDM ) is implemented
to deliver fast system synchronization
and precise channel estimation.
The DTMB (CTTB) measurement ap-
plication gives more convenience to
your DTMB (CTTB) system develop-
ment and manufacturing, including
both multi-carrier and single-carrier
schemes with one-button measure-
ments including standard presets and
remote SCPI programming capabili-
ties on X-Series signal analyzers.
Frame head
Data _Scrambler
FEC
input
Mapping
and
interleaver
Frame
Combine
Baseband
Up
processing converter
RF
output
MUX
body
System
processing
information
Figure 1. Block diagram of DTMB (CTTB) system