WSJT-X/pulsar.f90

51 lines
1.2 KiB
Fortran

program pulsar
! Receives timf2 data from Linrad and saves it for pulsar processing.
parameter (NSPP=174)
logical first
integer*1 userx_no,iusb
integer*2 id
integer*2 nblock,nblock0
integer*2 id2(1000)
real*8 center_freq
common/plrscom/center_freq,msec,fselect,iptr,nblock,userx_no,iusb,id(4,NSPP)
! 8 4 4 4 2 1 1 1392
data first/.true./,nblock0/0/,sqave/0.0/,u/0.001/
save
call setup_rsocket
k=0
10 call recv_pkt(center_freq)
lost=nblock-nblock0-1
if(lost.ne.0 .and. .not.first) print*,'Lost packets:',lost,nblock,nblock0
nblock0=nblock
sq=0.
do i=1,NSPP
sq=sq + float(int(id(1,i)))**2 + float(int(id(2,i)))**2 + &
float(int(id(3,i)))**2 + float(int(id(4,i)))**2
enddo
sqave=sqave + u*(sq-sqave)
rxnoise=10.0*log10(sqave) - 48.0
k=k+1
id2(k)=0.001*sq
if(k.eq.1000) then
write(*,1000) center_freq,0.001*msec,nblock,sqave,rxnoise,id2(1)
write(13,1000) center_freq,0.001*msec,nblock,sqave,rxnoise,id2(1)
1000 format(f7.3,f11.3,i7,f10.0,f8.2,i8)
write(12) center_freq,msec,nblock,id2
call flush(12)
call flush(13)
k=0
endif
go to 10
end program pulsar
! To compile: % gfortran -o pulsar pulsar.f90 plrr_subs.c