WSJT-X/lib/fsk4hf/ft8_params.f90
Steven Franke a35b460e68 Fix a comment. No code changes.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7863 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-07-13 00:31:52 +00:00

13 lines
780 B
Fortran

! LDPC (174,87) code
parameter (KK=87) !Information bits (75 + CRC12)
parameter (ND=58) !Data symbols
parameter (NS=21) !Sync symbols (3 @ Costas 7x7)
parameter (NN=NS+ND) !Total channel symbols (79)
parameter (NSPS=1920) !Samples per symbol at 12000 S/s
parameter (NZ=NSPS*NN) !Samples in full 15 s waveform (151,680)
parameter (NMAX=15*12000) !Samples in iwave (180,000)
parameter (NFFT1=2*NSPS, NH1=NFFT1/2) !Length of FFTs for symbol spectra
parameter (NSTEP=NSPS/4) !Rough time-sync step size
parameter (NHSYM=NMAX/NSTEP-3) !Number of symbol spectra (1/4-sym steps)
parameter (NDOWN=60) !Downsample factor