mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-08-25 00:42:38 -04:00
Some more work on code comparisons.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6454 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
parent
2327fe8094
commit
59295f14ed
@ -33,9 +33,10 @@ program JTMSKfer
|
||||
bias=0.0
|
||||
scale=20.0
|
||||
xln2=log(2.0)
|
||||
mettab=0
|
||||
do i=128,156
|
||||
x0=log(max(0.0001,2.0*xp(i-127)))/xln2
|
||||
x1=log(max(0.001,2.0*(1.0-xp(i-127))))/xln2
|
||||
x0=log(max(0.001,2.0*xp(i-127)))/xln2
|
||||
x1=log(max(0.001,2.0*(1-xp(i-127))))/xln2
|
||||
mettab(i,0)=nint(scale*(x0-bias))
|
||||
mettab(i,1)=nint(scale*(x1-bias))
|
||||
mettab(256-i,0)=mettab(i,1)
|
||||
@ -48,7 +49,7 @@ program JTMSKfer
|
||||
mettab(256-i,1)=mettab(i,0)
|
||||
enddo
|
||||
|
||||
rdscale=2.0 ! empirically optimized
|
||||
rdscale=2.0
|
||||
ntrials=1000000
|
||||
rate=72.0/198.0
|
||||
msg="123"
|
||||
@ -67,7 +68,7 @@ program JTMSKfer
|
||||
|
||||
! call sgran()
|
||||
|
||||
do idb=0,11
|
||||
do idb=6,11
|
||||
db=idb/2.0-0.5 ! Eb/N0=1/(2*R*sigma^2), so sigma= sqrt( 1/(2*R*Eb/N0) )
|
||||
sigma=1/sqrt( 2*rate*(10**(db/10.0)) )
|
||||
|
||||
|
@ -1,14 +1,15 @@
|
||||
sf4 160,80 ldpc, Eb/N0_dB, ngood, nundet, 10^6 trials
|
||||
-0.5 2906 0
|
||||
0.0 18899 1
|
||||
0.5 78344 3
|
||||
1.0 220956 9
|
||||
1.5 447994 12
|
||||
2.0 694624 5
|
||||
2.5 876494 4
|
||||
3.0 965704 1
|
||||
3.5 993584 1
|
||||
4.0 999160 0
|
||||
4.5 999920 0
|
||||
5.0 999993 0
|
||||
columns 2,3 decoder uses variable sigma, columns 4,5 decoder uses fixed sigma=0.9
|
||||
-0.5 2906 0 10862 5
|
||||
0.0 18899 1 34663 6
|
||||
0.5 78344 3 94319 3
|
||||
1.0 220956 9 215720 9
|
||||
1.5 447994 12 405922 9
|
||||
2.0 694624 5 631688 5
|
||||
2.5 876494 4 825223 2
|
||||
3.0 965704 1 940486 1
|
||||
3.5 993584 1 986229 1
|
||||
4.0 999160 0 997916 0
|
||||
4.5 999920 0 999792 0
|
||||
5.0 999993 0 999982 0
|
||||
|
||||
|
@ -14,7 +14,12 @@ set grid
|
||||
set logscale y
|
||||
plot [-1:6] [1e-6:1] \
|
||||
"160-80-sf4.results" using 1:(1000000-$2)/1000000 with linespoints lt 2 lw 2 pt 2, \
|
||||
"160-80-sf4.results" using 1:($3/1000000) with linespoints lt 2 lw 2 pt 3, \
|
||||
"jtmskcode.results" using 1:(100000-$2)/100000 with linespoints lt 1 lw 2 pt 7, \
|
||||
"160-80-sf4.results" using 1:($3/1000000) with linespoints lt 2 lw 2 pt 2, \
|
||||
"160-80-sf4.results" using 1:(1000000-$4)/1000000 with linespoints lt 3 lw 2 pt 4, \
|
||||
"160-80-sf4.results" using 1:($5/1000000) with linespoints lt 2 lw 3 pt 4, \
|
||||
"ldpc-144-72-sf2.results" using 1:(1000000-$2)/1000000 with linespoints lt 3 lw 2 pt 5, \
|
||||
"ldpc-144-72-sf2.results" using 1:($3/1000000) with linespoints lt 3 lw 2 pt 5, \
|
||||
"jtmskcode.results" using 1:(1000000-$4)/1000000 with linespoints lt 1 lw 2 pt 7, \
|
||||
"jtmskcode.results" using 1:($5/1000000) with linespoints lt 1 lw 2 pt 7, \
|
||||
"compare.lab" with labels
|
||||
|
||||
exit
|
||||
|
@ -1,11 +1,12 @@
|
||||
-0.50 1470 4
|
||||
0.00 4403 2
|
||||
0.50 11167 2
|
||||
1.00 24082 1
|
||||
1.50 42779 4
|
||||
2.00 63417 0
|
||||
2.50 81290 1
|
||||
3.00 92388 0
|
||||
rate 1/2 constraint len 13, bpsk, ngood, nbad 10^5 trials, 10^6 trials
|
||||
-0.50 1470 4
|
||||
0.00 4403 2 43968 30
|
||||
0.50 11167 2 111824 33
|
||||
1.00 24082 1 238157 21
|
||||
1.50 42779 4 425263 20
|
||||
2.00 63417 0 634824 14
|
||||
2.50 81290 1 812206 2
|
||||
3.00 92388 0 924507 2
|
||||
3.50 97560 0
|
||||
4.00 99390 0
|
||||
4.50 99864 0
|
||||
|
Loading…
x
Reference in New Issue
Block a user