3 * Copyright 2006,2009 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 GR_SWIG_BLOCK_MAGIC(gr,pwr_squelch_cc);
25 // retrieve info on the base class, without generating wrappers since
26 // the base class has a pure virual method.
27 %import "gr_squelch_base_cc.i"
29 gr_pwr_squelch_cc_sptr
30 gr_make_pwr_squelch_cc(double db, double alpha=0.0001, int ramp=0, bool gate=false);
32 class gr_pwr_squelch_cc : public gr_squelch_base_cc
35 gr_pwr_squelch_cc(double db, double alpha, int ramp, bool gate);
38 double threshold() const { return 10*log10(d_threshold); }
39 void set_threshold(double db) { d_threshold = std::pow(10.0, db/10); }
40 void set_alpha(double alpha) { d_iir.set_taps(alpha); }
41 std::vector<float> squelch_range() const;