3 * Copyright 2007 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef INCLUDED_GR_DPLL_BB_H
24 #define INCLUDED_GR_DPLL_BB_H
26 #include <gr_sync_block.h>
29 typedef boost::shared_ptr<gr_dpll_bb> gr_dpll_bb_sptr;
31 gr_dpll_bb_sptr gr_make_dpll_bb (float period, float gain);
34 * \brief Detect the peak of a signal
37 * If a peak is detected, this block outputs a 1,
40 class gr_dpll_bb : public gr_sync_block
42 friend gr_dpll_bb_sptr gr_make_dpll_bb (float period, float gain);
44 gr_dpll_bb (float period, float gain);
47 unsigned char d_restart;
48 float d_pulse_phase, d_pulse_frequency,d_gain,d_decision_threshold;
52 int work (int noutput_items,
53 gr_vector_const_void_star &input_items,
54 gr_vector_void_star &output_items);