mirror of https://github.com/saitohirga/WSJT-X.git
130 lines
2.9 KiB
Fortran
130 lines
2.9 KiB
Fortran
subroutine foxgen(mycall,mygrid6,nslots,t)
|
|
|
|
parameter (NN=79,KK=87,NSPS=4*1920)
|
|
parameter (NWAVE=NN*NSPS,NFFT=614400,NH=NFFT/2)
|
|
character*(*) t
|
|
character*22 msg,msgsent
|
|
character*12 t1
|
|
character*6 mycall,mygrid6,mygrid,call1,call2
|
|
logical bcontest
|
|
integer itone(NN)
|
|
integer*1 msgbits(KK)
|
|
integer*8 count0,count1,clkfreq
|
|
real wave(NWAVE)
|
|
real x(NFFT),y(NFFT)
|
|
real*8 dt,twopi,f0,fstep,dfreq,phi,dphi
|
|
complex cx(0:NH),cy(0:NH)
|
|
common/foxcom/wave
|
|
equivalence (x,cx),(y,cy)
|
|
|
|
mygrid=mygrid6(1:4)//' '
|
|
print*,mycall,' ',mygrid6,' ',nslots,len(t),t
|
|
call system_clock(count0,clkfreq)
|
|
bcontest=.false.
|
|
i3bit=0
|
|
fstep=60.d0
|
|
dfreq=6.25d0
|
|
dt=1.d0/48000.d0
|
|
twopi=8.d0*atan(1.d0)
|
|
wave=0.
|
|
|
|
do n=1,nslots
|
|
ia=22*(n-1)+1
|
|
call1=t(ia:ia+5)
|
|
if(t(ia+7:ia+10).eq.'RR73') then
|
|
irpt1=99
|
|
else
|
|
read(t(ia+7:ia+10),*) irpt1
|
|
endif
|
|
call2=t(ia+11:ia+16)
|
|
read(t(ia+18:ia+21),*) irpt2
|
|
print*,n,call1,irpt1,call2,irpt2
|
|
|
|
call genft8(msg,mygrid,bcontest,i3bit,msgsent,msgbits,itone)
|
|
|
|
f0=1500.d0 + fstep*(n-1)
|
|
phi=0.d0
|
|
k=0
|
|
do j=1,NN
|
|
f=f0 + dfreq*itone(j)
|
|
dphi=twopi*f*dt
|
|
do ii=1,NSPS
|
|
k=k+1
|
|
phi=phi+dphi
|
|
xphi=phi
|
|
wave(k)=wave(k)+sin(xphi)
|
|
enddo
|
|
enddo
|
|
|
|
call system_clock(count1,clkfreq)
|
|
! time=float(count1-count0)/float(clkfreq) !Cumulative execution time
|
|
! write(*,3001) n,k,i,time,msgsent
|
|
!3001 format(i1,i8,i4,f10.6,2x,a22)
|
|
! if(i.ge.m) exit
|
|
enddo
|
|
|
|
sqx=0.
|
|
do i=1,NWAVE
|
|
sqx=sqx + wave(i)*wave(i)
|
|
enddo
|
|
sigmax=sqrt(sqx/NWAVE)
|
|
wave=wave/sigmax !Force rms=1.0
|
|
|
|
do i=1,NWAVE
|
|
wave(i)=h1(wave(i)) !Compress the waveform
|
|
enddo
|
|
|
|
fac=1.0/maxval(abs(wave)) !Set maxval = 1.0
|
|
wave=fac*wave
|
|
|
|
if(NWAVE.ne.-99) go to 100 !### Omit filtering, for now ###
|
|
|
|
x(1:k)=wave
|
|
x(k+1:)=0.
|
|
call four2a(x,nfft,1,-1,0)
|
|
|
|
nadd=64
|
|
k=0
|
|
df=48000.0/NFFT
|
|
rewind(29)
|
|
do i=1,NH/nadd - 1
|
|
sx=0.
|
|
! sy=0.
|
|
do j=1,nadd
|
|
k=k+1
|
|
sx=sx + real(cx(k))**2 + aimag(cx(k))**2
|
|
! sy=sy + real(cy(k))**2 + aimag(cy(k))**2
|
|
enddo
|
|
freq=df*(k-nadd/2+0.5)
|
|
write(29,1022) freq,sx,sy,db(sx)-90.0,db(sy)-90.0
|
|
1022 format(f10.3,2e12.3,2f10.3)
|
|
if(freq.gt.3000.0) exit
|
|
enddo
|
|
flush(29)
|
|
|
|
100 call system_clock(count1,clkfreq)
|
|
! time=float(count1-count0)/float(clkfreq) !Cumulative execution time
|
|
! write(*,3010) time
|
|
!3010 format('Time:',f10.6)
|
|
|
|
return
|
|
end subroutine foxgen
|
|
|
|
real function h1(x)
|
|
|
|
! sigma=1.0/sqrt(2.0)
|
|
sigma=1.0
|
|
xlim=sigma/sqrt(6.0)
|
|
ax=abs(x)
|
|
sgnx=1.0
|
|
if(x.lt.0) sgnx=-1.0
|
|
if(ax.le.xlim) then
|
|
h1=x
|
|
else
|
|
z=exp(1.0/6.0 - (ax/sigma)**2)
|
|
h1=sgnx*sqrt(6.0)*sigma*(2.0/3.0 - 0.5*z)
|
|
endif
|
|
|
|
return
|
|
end function h1
|