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/* -*- c++ -*- */
/*
* Copyright 2010 Free Software Foundation, Inc.
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <digital_cpmmod_bc.h>
#include <gr_io_signature.h>
// Shared pointer constructor
digital_cpmmod_bc_sptr
digital_make_cpmmod_bc(int type, float h,
unsigned samples_per_sym,
unsigned L, double beta)
{
return gnuradio::get_initial_sptr(new digital_cpmmod_bc((gr_cpm::cpm_type)type,
h, samples_per_sym,
L, beta));
}
digital_cpmmod_bc::digital_cpmmod_bc(gr_cpm::cpm_type type, float h,
unsigned samples_per_sym,
unsigned L, double beta)
: gr_hier_block2("digital_cpmmod_bc",
gr_make_io_signature(1, 1, sizeof(char)),
gr_make_io_signature2(1, 1, sizeof(gr_complex), sizeof(float))),
d_taps(gr_cpm::phase_response(type, samples_per_sym, L, beta)),
d_char_to_float(gr_make_char_to_float()),
d_pulse_shaper(gr_make_interp_fir_filter_fff(samples_per_sym, d_taps)),
d_fm(gr_make_frequency_modulator_fc(M_PI * h))
{
switch (type) {
case gr_cpm::LRC:
case gr_cpm::LSRC:
case gr_cpm::LREC:
case gr_cpm::TFM:
case gr_cpm::GAUSSIAN:
break;
default:
throw std::invalid_argument("invalid CPM type");
}
connect(self(), 0, d_char_to_float, 0);
connect(d_char_to_float, 0, d_pulse_shaper, 0);
connect(d_pulse_shaper, 0, d_fm, 0);
connect(d_fm, 0, self(), 0);
}
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