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LDPC LL Decoding
BPSK
BER
.378
.451
-5
1.8
10
1.9
-6
10
-7
2.0
10
10
2.1
-8
LDPC HP Decoding
BER
-5
10
-6
10
-7
10
-8
10
BER Performance with Adjacent Carriers
Both modems performance when operating with adjacent carriers complies with MIL-STD-188-165A
interface standard, Interoperability of SHF Satellite Communications PSK Modems (FDMA Operation)
Introduction
Table 1-16. LDPC LL Decoder BER Performance
Eb/No (dB) Specification
QPSK
.541
1/2
2/3
2.0
2.2
2.4
3.0
2.1
2.3
2.5
3.1
2.2
2.4
2.6
3.2
2.3
2.5
2.7
3.3
Table 1-17. LDPC HP Decoder BER Performance
Eb/No (dB) Specification
BPSK
1/3
1/2
1/2
2.0
2.0
2.0
2.1
2.1
2.1
2.2
2.2
2.2
2.3
2.3
2.3
SLM-5650C / SLM-5650C-ODU Satellite Modem
8QAM
3/4
7/8
2/3
3/4
3.6
4.4
5.0
5.6
3.7
4.5
5.1
5.7
3.8
4.7
5.2
5.8
3.9
4.9
5.3
5.9
(O)QPSK
2/3
3/4
2.4
3.0
2.5
3.1
2.6
3.2
2.7
3.3
1–17
Revision 1
16QAM
7/8
2/3
3/4
6.6
6.1
6.8
6.7
6.2
6.9
6.8
6.3
7.0
7.0
6.4
7.1
8QAM
16QAM
2/3
3/4
3/4
4.7
5.7
6.8
4.8
5.8
6.9
4.9
5.9
7.0
5.0
6.0
7.1
MN-SLM-5650C
7/8
8.0
8.1
8.2
8.3
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