mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-13 23:51:49 -05:00
56 lines
1.3 KiB
Fortran
56 lines
1.3 KiB
Fortran
|
subroutine softsym9f(ss2,ss3,i1SoftSymbols)
|
||
|
|
|
||
|
|
! Compute soft symbols and S/N
|
||
|
|
|
||
|
|
real ss2(0:8,85)
|
||
|
|
real ss3(0:7,69)
|
||
|
|
integer*1 i1SoftSymbolsScrambled(207)
|
||
|
|
integer*1 i1SoftSymbols(207)
|
||
|
|
|
||
|
|
ss=0.
|
||
|
|
sig=0.
|
||
|
|
if(ss2(0,1).eq.-999.0) return !Silence compiler warning
|
||
|
|
do j=1,69
|
||
|
|
smax=0.
|
||
|
|
do i=0,7
|
||
|
|
smax=max(smax,ss3(i,j))
|
||
|
|
ss=ss+ss3(i,j)
|
||
|
|
enddo
|
||
|
|
sig=sig+smax
|
||
|
|
ss=ss-smax
|
||
|
|
enddo
|
||
|
|
ave=ss/(69*7) !Baseline
|
||
|
|
! call pctile(ss2,9*85,35,xmed) !### better? ###
|
||
|
|
ss3=ss3/ave
|
||
|
|
sig=sig/69. !Signal
|
||
|
|
|
||
|
|
m0=3
|
||
|
|
k=0
|
||
|
|
scale=10.0
|
||
|
|
do j=1,69
|
||
|
|
do m=m0-1,0,-1 !Get bit-wise soft symbols
|
||
|
|
if(m.eq.2) then
|
||
|
|
r1=max(ss3(4,j),ss3(5,j),ss3(6,j),ss3(7,j))
|
||
|
|
r0=max(ss3(0,j),ss3(1,j),ss3(2,j),ss3(3,j))
|
||
|
|
else if(m.eq.1) then
|
||
|
|
r1=max(ss3(2,j),ss3(3,j),ss3(4,j),ss3(5,j))
|
||
|
|
r0=max(ss3(0,j),ss3(1,j),ss3(6,j),ss3(7,j))
|
||
|
|
else
|
||
|
|
r1=max(ss3(1,j),ss3(2,j),ss3(4,j),ss3(7,j))
|
||
|
|
r0=max(ss3(0,j),ss3(3,j),ss3(5,j),ss3(6,j))
|
||
|
|
endif
|
||
|
|
|
||
|
|
k=k+1
|
||
|
|
i4=nint(scale*(r1-r0))
|
||
|
|
if(i4.lt.-127) i4=-127
|
||
|
|
if(i4.gt.127) i4=127
|
||
|
|
i1SoftSymbolsScrambled(k)=i4
|
||
|
|
enddo
|
||
|
|
enddo
|
||
|
|
|
||
|
|
|
||
|
|
call interleave9(i1SoftSymbolsScrambled,-1,i1SoftSymbols)
|
||
|
|
|
||
|
|
return
|
||
|
|
end subroutine softsym9f
|