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-rw-r--r--gr-analog/lib/pwr_squelch_cc_impl.h78
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diff --git a/gr-analog/lib/pwr_squelch_cc_impl.h b/gr-analog/lib/pwr_squelch_cc_impl.h
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--- a/gr-analog/lib/pwr_squelch_cc_impl.h
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-/* -*- c++ -*- */
-/*
- * Copyright 2006,2012 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * 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.
- */
-
-#ifndef INCLUDED_ANALOG_PWR_SQUELCH_CC_IMPL_H
-#define INCLUDED_ANALOG_PWR_SQUELCH_CC_IMPL_H
-
-#include <analog/pwr_squelch_cc.h>
-#include "squelch_base_cc_impl.h"
-#include <filter/single_pole_iir.h>
-#include <cmath>
-
-namespace gr {
- namespace analog {
-
- class ANALOG_API pwr_squelch_cc_impl :
- public pwr_squelch_cc, squelch_base_cc_impl
- {
- private:
- double d_threshold;
- double d_pwr;
- filter::single_pole_iir<double,double,double> d_iir;
-
- protected:
- virtual void update_state(const gr_complex &in);
- virtual bool mute() const { return d_pwr < d_threshold; }
-
- public:
- pwr_squelch_cc_impl(double db, double alpha=0.0001,
- int ramp=0, bool gate=false);
- ~pwr_squelch_cc_impl();
-
- std::vector<float> squelch_range() const;
-
- double threshold() const { return 10*log10(d_threshold); }
- void set_threshold(double db) { d_threshold = std::pow(10.0, db/10); }
- void set_alpha(double alpha) { d_iir.set_taps(alpha); }
-
- int ramp() const { return squelch_base_cc_impl::ramp(); }
- void set_ramp(int ramp) { squelch_base_cc_impl::set_ramp(ramp); }
- bool gate() const { return squelch_base_cc_impl::gate(); }
- void set_gate(bool gate) { squelch_base_cc_impl::set_gate(gate); }
- bool unmuted() const { return squelch_base_cc_impl::unmuted(); }
-
- int general_work(int noutput_items,
- gr_vector_int &ninput_items,
- gr_vector_const_void_star &input_items,
- gr_vector_void_star &output_items)
- {
- return squelch_base_cc_impl::general_work(noutput_items,
- ninput_items,
- input_items,
- output_items);
- }
- };
-
- } /* namespace analog */
-} /* namespace gr */
-
-#endif /* INCLUDED_ANALOG_PWR_SQUELCH_CC_IMPL_H */