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Figure 35.-
Figure 36.- DVB-S
In a digital reception system for satellite signals (
decoder other two different correction methods are applied (see following Figure). In this
case, as the previous one, each time we apply an error corrector to a digital signal, the
error rate changes, therefore if we measure in a digital satellite television system, for
example, the error rate at the output of the
the Low Density Parity Check (
we obtain nothing more than different error rates. This is the reason because the
measurement is provided after
PER
(
), that is, the amount of packets receiving during the measurement time, which are
not correctable by the demodulator (WP).
Figure 37.-
Page 60
USER'S MANUAL.
Digital reception system via satellite. (DVB-S)
QPSK
VBER
(
) signals
QPSK/8PSK
LDPC
) decoder, and at the output of the
LDPC (LBER
). It also shows the amount of packet errors
Digital reception system via satellite. (DVB-S2).
TV EXPLORER HD / HD
measurement screen.
DVB-S2
), after the
demodulator, at the output of
BCH
LE
QPSK
decoder,
BER
10/2012
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