WSJT-X/flat2.f
Joe Taylor 2c17544f3f initial import
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/WSJT/trunk@1 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2005-12-22 16:40:53 +00:00

24 lines
453 B
Fortran

subroutine flat2(ss,n,nsum)
real ss(1024)
real ref(1024)
real tmp(1024)
nsmo=20
base=50*(float(nsum)**1.5)
ia=nsmo+1
ib=n-nsmo-1
do i=ia,ib
call pctile(ss(i-nsmo),tmp,2*nsmo+1,50,ref(i))
enddo
call pctile(ref(ia),tmp,ib-ia+1,50,base2)
if(base2.gt.0.1*base) then
do i=ia,ib
ss(i)=base*ss(i)/ref(i)
enddo
endif
return
end