AMT-70/AMT-73/AMT-75 Installation and Operation
160
CHAPTER 16 APPENDIX E DVB-S2
THEORETICAL PERFORMANCE
The DVB-S2 S/N specification for DVB-S2 NORMAL Block size is listed in Figure 88. This
data is taken directly from the DVB-S2 specification.
Mode Spectral efficiency Ideal Es/No (dB)
QPSK ¼ 0.490243 -2.35
QPSK 1/3 0.656448 -1.24
QPSK 2/5 0.791874 -0.30
QPSK ½ 0.988857 1.00
QPSK 3/5 1.188303 2.23
QPSK 2/3 1.322251 3.10
QPSK ¾ 1.487472 4.03
QPSK 4/5 1.587195 4.68
QPSK 5/6 1.654662 5.18
QPSK 8/9 1.766451 6.20
QPSK 9/10 1.788612 6.42
8PSK 3/5 1.779989 5.50
8PSK 2/3 1.980633 6.62
8PSK ¾ 2.228122 7.91
8PSK 5/6 2.478560 9.35
8PSK 8/9 2.646012 10.69
8PSK 9/10 2.679207 10.98
16APSK 2/3 2.637197 8.97
16APSK ¾ 2.966726 10.21
16APSK 4/5 3.165621 11.03
16APSK 5/6 3.300181 11.61
16APSK 8/9 3.523142 12.89
16APSK 9/10 3.567341 13.13
Figure 88: DVB-S2 Theoretical Performance figures
for FECFRAME length=64 800. Note that for FEC Frame SHORT 16Kbit blocks the ideal
Es/No are 0.25dB worse.
To Previous Page
Loading...
General