mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-10-31 23:57:10 -04:00
723ed3bd82
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5482 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
177 lines
4.1 KiB
Fortran
177 lines
4.1 KiB
Fortran
subroutine txbandtot(tx,ibtot)
|
|
integer tx(10,6), ibtot(10)
|
|
do j=1,10
|
|
ibtot(j)=0
|
|
do i=1,6
|
|
ibtot(j)=ibtot(j)+tx(j,i)
|
|
enddo
|
|
enddo
|
|
return
|
|
end subroutine txbandtot
|
|
|
|
subroutine txadd(tx,iband)
|
|
!add one tx to the requested band
|
|
integer tx(10,6)
|
|
isuccess=0
|
|
do k=1,10
|
|
call random_number(rr)
|
|
islot=rr*6
|
|
islot=islot+1
|
|
if( islot .gt. 6 ) then
|
|
write(*,*) "should not happen"
|
|
islot=6
|
|
endif
|
|
if( tx(iband,islot).eq.0 ) then
|
|
tx(iband,islot)=1
|
|
isuccess=1
|
|
endif
|
|
if( isuccess.eq.1 ) then
|
|
exit
|
|
endif
|
|
enddo
|
|
return
|
|
end subroutine txadd
|
|
|
|
subroutine txtrim(tx,ntxmax,ntot)
|
|
!limit sequential runlength to ntxmax
|
|
integer tx(10,6)
|
|
nrun=0
|
|
do i=1,6
|
|
do j=1,10
|
|
if( tx(j,i).eq.1 ) then
|
|
nrun=nrun+1
|
|
if(nrun.gt.ntxmax) then
|
|
tx(j,i)=0
|
|
nrun=0
|
|
endif
|
|
else
|
|
nrun=0
|
|
endif
|
|
enddo
|
|
enddo
|
|
|
|
ntot=0
|
|
do j=1,10
|
|
do i=1,6
|
|
if(tx(j,i).eq.1) then
|
|
ntot=ntot+1
|
|
endif
|
|
enddo
|
|
enddo
|
|
return
|
|
end subroutine txtrim
|
|
|
|
subroutine hopping(nyear,month,nday,uth,mygrid,nduration,npctx,isun, &
|
|
iband,ntxnext)
|
|
|
|
! Determine Rx or Tx in coordinated hopping mode.
|
|
|
|
character*6 mygrid
|
|
integer tx(10,6) !T/R array for 2 hours: 10 bands, 6 time slots
|
|
real r(6) !Random numbers
|
|
integer ii(1),ibtot(10)
|
|
data n2hr0/-999/
|
|
save n2hr0,tx
|
|
|
|
call grayline(nyear,month,nday,uth,mygrid,nduration,isun)
|
|
|
|
ns0=uth*3600.0
|
|
pctx=npctx
|
|
nrx=0
|
|
ntxnext=0
|
|
nsec=(ns0+10)/120 !Round up to start of next 2-min slot
|
|
nsec=nsec*120
|
|
n2hr=nsec/7200 !2-hour slot number
|
|
|
|
if(n2hr.ne.n2hr0) then
|
|
! Compute a new Rx/Tx pattern for this 2-hour interval
|
|
n2hr0=n2hr !Mark this one as done
|
|
tx=0 !Clear the tx array
|
|
do j=1,10 !Loop over all 10 bands
|
|
call random_number(r)
|
|
do i=1,6,2 !Select one each of 3 pairs of the
|
|
if(r(i).gt.r(i+1)) then ! 6 slots for Tx
|
|
tx(j,i)=1
|
|
r(i+1)=0.
|
|
else
|
|
tx(j,i+1)=1
|
|
r(i)=0.
|
|
endif
|
|
enddo
|
|
|
|
if(pctx.lt.50.0) then !If pctx < 50, we may kill one Tx slot
|
|
ii=maxloc(r)
|
|
i=ii(1)
|
|
call random_number(rr)
|
|
rrtest=(50.0-pctx)/16.667
|
|
if(rr.lt.rrtest) then
|
|
tx(j,i)=0
|
|
r(i)=0.
|
|
endif
|
|
endif
|
|
|
|
if(pctx.lt.33.333) then !If pctx < 33, may kill another
|
|
ii=maxloc(r)
|
|
i=ii(1)
|
|
call random_number(rr)
|
|
rrtest=(33.333-pctx)/16.667
|
|
if(rr.lt.rrtest) then
|
|
tx(j,i)=0
|
|
r(i)=0.
|
|
endif
|
|
endif
|
|
enddo
|
|
|
|
! We now have 1 to 3 Tx periods per band in the 2-hour interval.
|
|
! Now, iteratively massage the array to try to satisfy the constraints
|
|
ntxlimit=2
|
|
if( pctx .lt. 33.333 ) then
|
|
minperband=1
|
|
elseif( (pctx .ge. 33.333) .and. (pctx .lt. 50.0) ) then
|
|
minperband=2
|
|
else
|
|
minperband=3
|
|
endif
|
|
n_needed=60*pctx/100+0.5
|
|
! Allow up to 20 iterations
|
|
do k=1,20
|
|
call txtrim(tx,ntxlimit,ntot)
|
|
call txbandtot(tx,ibtot)
|
|
! write(*,3001) ibtot
|
|
do j=1,10
|
|
if( ibtot(j).le.minperband) then
|
|
do m=1,minperband-ibtot(j)
|
|
call txadd(tx,j)
|
|
enddo
|
|
endif
|
|
enddo
|
|
call txtrim(tx,ntxlimit,ntot)
|
|
if( abs(ntot-n_needed) .le. 1 ) then
|
|
write(*,*) "Success! Iteration converged"
|
|
exit
|
|
endif
|
|
! write(*,*) "Iteration: ",k,ntot,n_needed
|
|
! iteration loop
|
|
enddo
|
|
actual_pct=ntot/60.0
|
|
write(*,*) "Actual percentage: ",actual_pct
|
|
endif
|
|
|
|
iband=mod(nsec/120,10) + 1
|
|
iseq=mod(nsec/1200,6) + 1
|
|
if(iseq.lt.1) iseq=1
|
|
if(tx(iband,iseq).eq.1) then
|
|
ntxnext=1
|
|
else
|
|
nrx=1
|
|
endif
|
|
iband=iband-1
|
|
|
|
write(*,3000) iband+1,iseq,nrx,ntxnext
|
|
3000 format('Fortran iband, iseq,nrx,ntxnext:',4i5)
|
|
write(*,3001) int(tx)
|
|
3001 format(10i2)
|
|
|
|
return
|
|
end subroutine hopping
|