Figure 7-5 Viterbi With Concatenated Rs 2200,200 Outer Code - Comtech EF Data CDM-550T Manual

CDM-550T Satellite Modem
1 2
1E-1
1E-2
threshold,
Rate 3/4
1E-3
1E-4
Combined sync
1E-5
threshold, demod
and Viterbi
Decoder, Rate 1/2
1E-6
1E-7
Typical performance
1E-8
1E-9
1 2
BER

Figure 7-5 Viterbi with concatenated RS 2200,200 Outer Code

Rev. 1.3
3 4 5
Uncoded BPSK/QPSK
Sync
Sync
threshold,
Rate 7/8
3 4 5
6 7 8 9
Viterbi with
concatenated
RS 220,200
Outer Code
Specification
Limit Rate 1/2
and 220,200
Outer Code
Specification
Limit Rate 3/4
and 220,200
Outer Code
6 7 8 9
Forward Error Correction Options
Eb/No in dB
10 11 12
Specification
Limit Rate 7/8
and 220,200
Outer Code
10 11 12
7–13