3 * Copyright 2004,2006,2010 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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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)
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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.
27 #include <gr_pwr_squelch_ff.h>
29 gr_pwr_squelch_ff_sptr
30 gr_make_pwr_squelch_ff(double threshold, double alpha, int ramp, bool gate)
32 return gnuradio::get_initial_sptr(new gr_pwr_squelch_ff(threshold, alpha, ramp, gate));
35 gr_pwr_squelch_ff::gr_pwr_squelch_ff(double threshold, double alpha, int ramp, bool gate) :
36 gr_squelch_base_ff("pwr_squelch_ff", ramp, gate),
39 set_threshold(threshold);
42 std::vector<float> gr_pwr_squelch_ff::squelch_range() const
44 std::vector<float> r(3);
45 r[0] = -50.0; // min FIXME
46 r[1] = +50.0; // max FIXME
47 r[2] = (r[1] - r[0]) / 100; // step size
52 void gr_pwr_squelch_ff::update_state(const float &in)
54 d_pwr = d_iir.filter(in*in);