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Clean up the usage of q65_dec_q3, q65_ccf_85, and q65_ccf_22.

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This commit is contained in:
Joe Taylor 2021-01-14 10:58:11 -05:00
parent e0d6e362e8
commit 0abdff0216
1 changed files with 16 additions and 18 deletions
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34
lib/qra/q65/q65.f90
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@ -117,10 +117,23 @@ subroutine q65_dec0(nutc,iwave,ntrperiod,nfqso,ntol,ndepth,lclearave, &
if(ncw.gt.0) then
! Try list decoding via "Deep Likelihood".
call timer('ccf_85 ',0)
call q65_ccf_85(s1,iz,jz,nfqso,ia,ia2,ipk,jpk,f0,xdt,imsg_best,ccf,ccf1)
call timer('ccf_85 ',1)
call timer('list_dec',0)
call q65_dec_q3(s1,iz,jz,ia,ia2,ccf,ccf1,ccf2,s3,LL,nfqso,xdt,f0, &
snr2,dat4,idec,decoded)
call q65_dec_q3(s1,iz,jz,s3,LL,ipk,jpk,snr2,dat4,idec,decoded)
call timer('list_dec',1)
ic=ia2/4;
base=(sum(ccf1(-ia2:-ia2+ic)) + sum(ccf1(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf1=ccf1-base
smax=maxval(ccf1)
if(smax.gt.10.0) ccf1=10.0*ccf1/smax
base=(sum(ccf2(-ia2:-ia2+ic)) + sum(ccf2(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf2=ccf2-base
smax=maxval(ccf2)
if(smax.gt.10.0) ccf2=10.0*ccf2/smax
endif
! Get 2d CCF and ccf2 using sync symbols only
@ -214,19 +227,13 @@ subroutine q65_symspec(iwave,nmax,iz,jz,s1)
return
end subroutine q65_symspec
subroutine q65_dec_q3(s1,iz,jz,ia,ia2,ccf,ccf1,ccf2,s3,LL,nfqso,xdt,f0, &
snr2,dat4,idec,decoded)
subroutine q65_dec_q3(s1,iz,jz,s3,LL,ipk,jpk,snr2,dat4,idec,decoded)
character*37 decoded
integer dat4(13)
real ccf(-ia2:ia2,-53:214)
real ccf1(-ia2:ia2)
real ccf2(-ia2:ia2)
real s1(iz,jz)
real s3(-64:LL-65,63)
call q65_ccf_85(s1,iz,jz,nfqso,ia,ia2,ipk,jpk,f0,xdt,imsg_best,ccf,ccf1)
i1=i0+ipk-64
i2=i1+LL-1
j=j0+jpk-7
@ -258,15 +265,6 @@ subroutine q65_dec_q3(s1,iz,jz,ia,ia2,ccf,ccf1,ccf2,s3,LL,nfqso,xdt,f0, &
if(irc.ge.0) then
snr2=esnodb - db(2500.0/baud) + 3.0 !Empirical adjustment
idec=1
ic=ia2/4;
base=(sum(ccf1(-ia2:-ia2+ic)) + sum(ccf1(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf1=ccf1-base
smax=maxval(ccf1)
if(smax.gt.10.0) ccf1=10.0*ccf1/smax
base=(sum(ccf2(-ia2:-ia2+ic)) + sum(ccf2(ia2-ic:ia2)))/(2.0+2.0*ic);
ccf2=ccf2-base
smax=maxval(ccf2)
if(smax.gt.10.0) ccf2=10.0*ccf2/smax
exit
endif
enddo