mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-24 05:08:38 -05:00
8fb483a200
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3462 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
39 lines
1.0 KiB
Fortran
39 lines
1.0 KiB
Fortran
subroutine softsym(id2,npts8,nsps8,newdat,fpk,syncpk,snrdb,xdt, &
|
|
freq,drift,schk,i1SoftSymbols)
|
|
|
|
! Compute the soft symbols
|
|
|
|
complex c2(0:4096-1)
|
|
complex c3(0:4096-1)
|
|
complex c5(0:4096-1)
|
|
real a(3)
|
|
integer*1 i1SoftSymbolsScrambled(207)
|
|
integer*1 i1SoftSymbols(207)
|
|
include 'jt9sync.f90'
|
|
|
|
nspsd=16
|
|
ndown=nsps8/nspsd
|
|
|
|
! Mix, low-pass filter, and downsample to 16 samples per symbol
|
|
call downsam9(id2,npts8,nsps8,newdat,nspsd,fpk,c2,nz2)
|
|
|
|
call peakdt9(c2,nz2,nsps8,nspsd,c3,nz3,xdt) !Find DT
|
|
|
|
fsample=1500.0/ndown
|
|
a=0.
|
|
call afc9(c3,nz3,fsample,a,syncpk) !Find deltaF, fDot, fDDot
|
|
freq=fpk - a(1)
|
|
drift=-2.0*a(2)
|
|
|
|
call twkfreq(c3,c5,nz3,fsample,a) !Correct for delta f, f1, f2 ==> a(1:3)
|
|
|
|
! Compute soft symbols (in scrambled order)
|
|
call symspec2(c5,nz3,nsps8,nspsd,fsample,freq,drift,snrdb,schk, &
|
|
i1SoftSymbolsScrambled)
|
|
|
|
! Remove interleaving
|
|
call interleave9(i1SoftSymbolsScrambled,-1,i1SoftSymbols)
|
|
|
|
return
|
|
end subroutine softsym
|