Forgot a couple of files.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6455 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke 2016-02-01 03:03:29 +00:00
parent 59295f14ed
commit 50fbd334cf
4 changed files with 30 additions and 74 deletions

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# run: gnuplot fig_compare.gnuplot
# then: pdflatex fig_compare.tex
set term epslatex standalone size 6in,2*6/3in
set output "fig_success.tex"
set xlabel "$E_b/N_0$ (dB)"
set ylabel "Decode Probability"
set style func linespoints
set key off
set tics in
set mxtics 2
set mytics 10
set grid
#set logscale y
plot [-1:6] [1e-6:1] \
"160-80-sf4.results" using 1:($2/1000000) with linespoints lt 2 lw 2 pt 2, \
"ldpc-144-72-sf2.results" using 1:($2/1000000) with linespoints lt 3 lw 2 pt 5, \
"jtmskcode.results" using 1:($4/1000000) with linespoints lt 1 lw 2 pt 7, \
"success.lab" with labels
exit
# "160-80-sf4.results" using 1:($4/1000000) with linespoints lt 3 lw 2 pt 4, \

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ldpc-144-72 sf2 is an irregular ldpc code.
0.45 89459 9
0.92 219230 22
1.41 429217 26
1.94 676583 23
2.5 873671 14

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make-ldpc ldpc-144-72.pchk 72 144 1087 evenboth 3x3/7x4 no4cycle
Eliminated 259 cycles of length four by moving checks within column
#cp ldpc-144-72-6x3-4x4-sf1.pchk ldpc-144-72.pchk
make-gen ldpc-144-72.pchk ldpc-144-72.gen dense
Number of 1s per check in Inv(A) X B is 30.9
rand-src ldpc-144-72.src 1 72x1000000
encode ldpc-144-72.pchk ldpc-144-72.gen ldpc-144-72.src \
ldpc-144-72.enc
Encoded 1000000 blocks, source block size 72, encoded block size 144
# NOISE STANDARD DEVIATION 0.75, Eb/N0 = 2.50 dB
transmit ldpc-144-72.enc ldpc-144-72.rec 1 awgn 0.75
Transmitted 144000000 bits
decode ldpc-144-72.pchk ldpc-144-72.rec ldpc-144-72.dec awgn 0.75\
prprp 250
Decoded 1000000 blocks, 873685 valid. Average 37.9 iterations, 9% bit changes
verify ldpc-144-72.pchk ldpc-144-72.dec ldpc-144-72.gen \
ldpc-144-72.src
Block counts: tot 1000000, with chk errs 126315, with src errs 126105, both 126091
Total good frames: 873671 Total undetected errors: 14
Bit error rate (on message bits only): 1.259e-02
# NOISE STANDARD DEVIATION 0.80, Eb/N0 = 1.94 dB
transmit ldpc-144-72.enc ldpc-144-72.rec 1 awgn 0.80
Transmitted 144000000 bits
decode ldpc-144-72.pchk ldpc-144-72.rec ldpc-144-72.dec awgn 0.80\
prprp 250
Decoded 1000000 blocks, 676606 valid. Average 86.8 iterations, 9% bit changes
verify ldpc-144-72.pchk ldpc-144-72.dec ldpc-144-72.gen \
ldpc-144-72.src
Block counts: tot 1000000, with chk errs 323394, with src errs 322911, both 322888
Total good frames: 676583 Total undetected errors: 23
Bit error rate (on message bits only): 3.303e-02
# NOISE STANDARD DEVIATION 0.85, Eb/N0 = 1.41 dB
transmit ldpc-144-72.enc ldpc-144-72.rec 1 awgn 0.85
Transmitted 144000000 bits
decode ldpc-144-72.pchk ldpc-144-72.rec ldpc-144-72.dec awgn 0.85\
prprp 250
Decoded 1000000 blocks, 429243 valid. Average 147.1 iterations, 9% bit changes
verify ldpc-144-72.pchk ldpc-144-72.dec ldpc-144-72.gen \
ldpc-144-72.src
Block counts: tot 1000000, with chk errs 570757, with src errs 569982, both 569956
Total good frames: 429217 Total undetected errors: 26
Bit error rate (on message bits only): 6.138e-02
# NOISE STANDARD DEVIATION 0.90, Eb/N0 = 0.92 dB
transmit ldpc-144-72.enc ldpc-144-72.rec 1 awgn 0.90
Transmitted 144000000 bits
decode ldpc-144-72.pchk ldpc-144-72.rec ldpc-144-72.dec awgn 0.90\
prprp 250
Decoded 1000000 blocks, 219252 valid. Average 197.8 iterations, 8% bit changes
verify ldpc-144-72.pchk ldpc-144-72.dec ldpc-144-72.gen \
ldpc-144-72.src
Block counts: tot 1000000, with chk errs 780748, with src errs 779961, both 779939
Total good frames: 219230 Total undetected errors: 22
Bit error rate (on message bits only): 9.086e-02
# NOISE STANDARD DEVIATION 0.95, Eb/N0 = 0.45 dB
transmit ldpc-144-72.enc ldpc-144-72.rec 1 awgn 0.95
Transmitted 144000000 bits
decode ldpc-144-72.pchk ldpc-144-72.rec ldpc-144-72.dec awgn 0.95\
prprp 250
Decoded 1000000 blocks, 89468 valid. Average 228.9 iterations, 7% bit changes
verify ldpc-144-72.pchk ldpc-144-72.dec ldpc-144-72.gen \
ldpc-144-72.src
Block counts: tot 1000000, with chk errs 910532, with src errs 909905, both 909896
Total good frames: 89459 Total undetected errors: 9
Bit error rate (on message bits only): 1.167e-01

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3.2 0.75 "(198,72) JTMSK"
0.9 0.55 "(160,80) LDPC"
1.3 0.75 "(144,72) LDPC"