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Restore the use of max-amplitude for ap passes.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8094 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke 2017-09-17 20:43:30 +00:00
parent b6740eb437
commit 851bfc8e9a
1 changed files with 16 additions and 15 deletions
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31
lib/fsk4hf/ft8b.f90
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@ -11,7 +11,7 @@ subroutine ft8b(dd0,newdat,nQSOProgress,nfqso,nftx,ndepth,lapon,napwid, &
logical bcontest
real a(5)
real s1(0:7,ND),s2(0:7,NN),s1sort(8*ND)
real ps(0:7)
real ps(0:7),psl(0:7)
real bmeta(3*ND),bmetb(3*ND),bmetap(3*ND)
real llr(3*ND),llra(3*ND),llr0(3*ND),llr1(3*ND),llrap(3*ND) !Soft symbols
real dd0(15*12000)
@ -174,11 +174,15 @@ subroutine ft8b(dd0,newdat,nQSOProgress,nfqso,nftx,ndepth,lapon,napwid, &
bmetap(i4)=r4
bmetap(i2)=r2
bmetap(i1)=r1
! Max log
ps=log(ps)
r1=max(ps(1),ps(3),ps(5),ps(7))-max(ps(0),ps(2),ps(4),ps(6))
r2=max(ps(2),ps(3),ps(6),ps(7))-max(ps(0),ps(1),ps(4),ps(5))
r4=max(ps(4),ps(5),ps(6),ps(7))-max(ps(0),ps(1),ps(2),ps(3))
! Max log metric
psl=log(ps)
r1=max(psl(1),psl(3),psl(5),psl(7))-max(psl(0),psl(2),psl(4),psl(6))
r2=max(psl(2),psl(3),psl(6),psl(7))-max(psl(0),psl(1),psl(4),psl(5))
r4=max(psl(4),psl(5),psl(6),psl(7))-max(psl(0),psl(1),psl(2),psl(3))
bmetb(i4)=r4
bmetb(i2)=r2
bmetb(i1)=r1
! Metric for Cauchy noise
! r1=log(ps(1)**3+ps(3)**3+ps(5)**3+ps(7)**3)- &
! log(ps(0)**3+ps(2)**3+ps(4)**3+ps(6)**3)
@ -199,9 +203,6 @@ subroutine ft8b(dd0,newdat,nQSOProgress,nfqso,nftx,ndepth,lapon,napwid, &
! r1=log(b1+b3+b5+b7)-log(b0+b2+b4+b6)
! r2=log(b2+b3+b6+b7)-log(b0+b1+b4+b5)
! r4=log(b4+b5+b6+b7)-log(b0+b1+b2+b3)
bmetb(i4)=r4
bmetb(i2)=r2
bmetb(i1)=r1
if(nQSOProgress .eq. 0 .or. nQSOProgress .eq. 5) then
! When bits 88:115 are set as ap bits, bit 115 lives in symbol 39 along
@ -403,14 +404,14 @@ subroutine normalizebmet(bmet,n)
end subroutine normalizebmet
FUNCTION bessi0(x)
function bessi0(x)
! From Numerical Recipes
REAL bessi0,x
DOUBLE PRECISION p1,p2,p3,p4,p5,p6,p7,q1,q2,q3,q4,q5,q6,q7,q8,q9,y
SAVE p1,p2,p3,p4,p5,p6,p7,q1,q2,q3,q4,q5,q6,q7,q8,q9
DATA p1,p2,p3,p4,p5,p6,p7/1.0d0,3.5156229d0,3.0899424d0,1.2067492d0, &
real bessi0,x
double precision p1,p2,p3,p4,p5,p6,p7,q1,q2,q3,q4,q5,q6,q7,q8,q9,y
save p1,p2,p3,p4,p5,p6,p7,q1,q2,q3,q4,q5,q6,q7,q8,q9
data p1,p2,p3,p4,p5,p6,p7/1.0d0,3.5156229d0,3.0899424d0,1.2067492d0, &
0.2659732d0,0.360768d-1,0.45813d-2/
DATA q1,q2,q3,q4,q5,q6,q7,q8,q9/0.39894228d0,0.1328592d-1, &
data q1,q2,q3,q4,q5,q6,q7,q8,q9/0.39894228d0,0.1328592d-1, &
0.225319d-2,-0.157565d-2,0.916281d-2,-0.2057706d-1, &
0.2635537d-1,-0.1647633d-1,0.392377d-2/