DMD20/20LBST Universal Satellite Modem
7.20.9
BER Performance (16QAM Viterbi)
1E-1
1E-2
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
0
Note: Eb/No values include the effect of using Differential Decoding and V.35
Descrambling.
MN-DMD20-20LBST Revision 14
Performance
1
2
3
4
5
Figure 7-9 16QAM BER Performance (Viterbi)
16QAM Uncoded Theory
Typical
Specification
3/4 Rate
Specification
7/8 Rate
6
7
8
9
Eb/No in dB
Technical Specifications
Viterbi
Decoder
10
11
12
13
14
15
7–17