mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-26 14:18:38 -05:00
37 lines
844 B
FortranFixed
37 lines
844 B
FortranFixed
|
subroutine gencwid(msg,wpm,freqcw,samfac,iwave,nwave)
|
||
|
|
|
||
|
|
parameter (NMAX=10*11025)
|
||
|
|
character msg*22,msg2*22
|
||
|
|
integer*2 iwave(NMAX)
|
||
|
|
|
||
|
|
integer*1 idat(460)
|
||
|
|
real*8 dt,t,twopi,pha,dpha,tdit,samfac
|
||
|
|
data twopi/6.283185307d0/
|
||
|
|
|
||
|
|
do i=1,22
|
||
|
|
if(msg(i:i).eq.' ') go to 10
|
||
|
|
enddo
|
||
|
|
10 iz=i-1
|
||
|
|
msg2=msg(1:iz)//' '
|
||
|
|
call morse(msg2,idat,ndits) !Encode part 1 of msg
|
||
|
|
|
||
|
|
tdit=1.2d0/wpm !Key-down dit time, seconds
|
||
|
|
dt=1.d0/(11025.d0*samfac)
|
||
|
|
nwave=ndits*tdit/dt
|
||
|
|
pha=0.
|
||
|
|
dpha=twopi*freqcw*dt
|
||
|
|
t=0.d0
|
||
|
|
s=0.
|
||
|
|
u=wpm/(11025*0.03)
|
||
|
|
do i=1,nwave
|
||
|
|
t=t+dt
|
||
|
|
pha=pha+dpha
|
||
|
|
j=t/tdit + 1
|
||
|
|
s=s + u*(idat(j)-s)
|
||
|
|
iwave(i)=nint(s*32767.d0*sin(pha))
|
||
|
|
enddo
|
||
|
|
|
||
|
|
return
|
||
|
|
end
|
||
|
|
|