32 lines
		
	
	
		
			600 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			32 lines
		
	
	
		
			600 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | subroutine spec8(c,s,savg) | ||
|  | 
 | ||
|  |   include 'wspr_fsk8_params.f90' | ||
|  |   complex c(0:NMAXD-1) | ||
|  |   complex c1(0:NSPS-1) | ||
|  |   real s(0:NH2,NN) | ||
|  |   real savg(0:NH2) | ||
|  | 
 | ||
|  |   fs=12000.0/NDOWN | ||
|  |   df=fs/NSPS | ||
|  |   savg=0. | ||
|  |   do j=1,NN | ||
|  |      ia=(j-1)*NSPS | ||
|  |      ib=ia + NSPS-1 | ||
|  |      c1(0:NSPS-1)=c(ia:ib) | ||
|  |      c1(NSPS:)=0. | ||
|  |      call four2a(c1,NSPS,1,-1,1) | ||
|  |      do i=0,NH2 | ||
|  |         s(i,j)=real(c1(i))**2 + aimag(c1(i))**2 | ||
|  |      enddo | ||
|  |      savg=savg+s(0:NH2,j) | ||
|  |   enddo | ||
|  |   s=s/NZ | ||
|  |   savg=savg/(NN*NZ) | ||
|  | !  do i=0,NH2 | ||
|  | !     write(31,3101) i*df,savg(i) | ||
|  | !3101 format(f10.3,f12.3) | ||
|  | !  enddo | ||
|  | 
 | ||
|  |   return | ||
|  | end subroutine spec8 |