23 lines
1.4 KiB
Fortran
23 lines
1.4 KiB
Fortran
parameter (NSUBMODE=2)
|
|
parameter (NCOSTAS=2) !Which JS8 Costas Arrays to use (1=original, 2=three symmetrical costas)
|
|
|
|
parameter (NSPS=600, NTXDUR=6, NDOWNSPS=12, NDD=120, JZ=172) ! 160 Hz 20 baud 40 wpm -20.0dB (1.0Eb/N0) 3.95s
|
|
|
|
parameter (AZ=12000.0/(1.0*NSPS)*0.6d0) !Dedupe overlap in Hz
|
|
parameter (ASTART=0.1) !Start delay in seconds
|
|
parameter (ASYNCMIN=1.5) !Minimum Sync
|
|
|
|
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 (NZ=NSPS*NN) !Samples in full 15 s waveform (151,680)
|
|
parameter (NMAX=NTXDUR*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=NSPS/NDOWNSPS) !Downsample factor to 32 samples per symbol
|
|
parameter (NQSYMBOL=NDOWNSPS/4) !Downsample factor of a quarter symbol
|
|
parameter (NFSRCH=5) !Search frequency range in Hz (i.e., +/- 2.5 Hz)
|
|
parameter (NMAXCAND=300) !Maxiumum number of candidate signals
|