NAME

       fdmdv_demod - a diagnostic tool for the codec2 library to create a codec2 bit file from a series of FDMDV
       modem samples.

SYNOPSIS

       fdmdv_demod usage: InputModemRawFile OutputBitFile [Nc] [OctaveDumpFile]

DESCRIPTION

       Given  an input raw file (8kHz, 16 bit shorts) of FDMDV modem samples outputs a file of bits.  The output
       file is assumed to be arranged as codec frames of 56 bits (7 bytes) which are  received  as  two  28  bit
       modem frames.

       Demod  states  can  be  optionally  logged  to  an  Octave  file  for  display  using  the  Octave script
       fdmdv_demod_c.m.  This is useful for checking demod performance.

EXAMPLE

        fdmdv_dmod hts1a_fdmdv.raw hts1a.c2

OPTIONS

       The first argument, InputModemRawFile is the file name of a file with FDMDV  modem  samples.  If  "-"  is
       given the input is taken from stdin.

       The  second  argument, OutputBitFile is the file name of a file to be created with codec2 bits. If "-" is
       given the output is sent to stdout.

       The optional third argument, [Nc] is the number of carriers to use in the modem. The default is 14.   The
       minimum is 2 and the maximum is 20.

       The optional fourth argument, [OctaveDumpFile] is the name of to Octave data file to create.

SEE ALSO

       c2dec(1), c2enc(1), fdmdv_mod(1), fdmdv_get_test_bits(1) fdmdv_put_test_bits(1)

fdmdv_demod                                        2020-12-04                                     FDMDV_DEMOD(1)