mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-10-31 04:50:34 -04:00
16 lines
298 B
Fortran
16 lines
298 B
Fortran
|
subroutine nuttal_window(win,n)
|
||
|
|
real win(n)
|
||
|
|
|
||
|
|
pi=4.0*atan(1.0)
|
||
|
|
a0=0.3635819
|
||
|
|
a1=-0.4891775;
|
||
|
|
a2=0.1365995;
|
||
|
|
a3=-0.0106411;
|
||
|
|
do i=1,n
|
||
|
|
win(i)=a0+a1*cos(2*pi*(i-1)/(n))+ &
|
||
|
|
a2*cos(4*pi*(i-1)/(n))+ &
|
||
|
|
a3*cos(6*pi*(i-1)/(n))
|
||
|
|
enddo
|
||
|
|
return
|
||
|
|
end subroutine nuttal_window
|