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authorTom Rondeau2012-10-31 16:28:53 -0400
committerTom Rondeau2012-10-31 16:28:53 -0400
commitac9430cd39bf12395952ca49b1966ec428fdadf3 (patch)
treec0458aace8a79df8a0595b837c709d5b982ce33f /gr-analog/lib/pwr_squelch_cc_impl.cc
parentfa4f1c2fcec8536c9d71607a0a710878cb6010ff (diff)
parent21beb2a5dc1e589873b49836190c3caf354c86f7 (diff)
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Merge branch 'analog'
Diffstat (limited to 'gr-analog/lib/pwr_squelch_cc_impl.cc')
-rw-r--r--gr-analog/lib/pwr_squelch_cc_impl.cc73
1 files changed, 73 insertions, 0 deletions
diff --git a/gr-analog/lib/pwr_squelch_cc_impl.cc b/gr-analog/lib/pwr_squelch_cc_impl.cc
new file mode 100644
index 000000000..1bfba6846
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+++ b/gr-analog/lib/pwr_squelch_cc_impl.cc
@@ -0,0 +1,73 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2006,2010,2012 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pwr_squelch_cc_impl.h"
+
+namespace gr {
+ namespace analog {
+
+ pwr_squelch_cc::sptr
+ pwr_squelch_cc::make(double threshold, double alpha,
+ int ramp, bool gate)
+ {
+ return gnuradio::get_initial_sptr
+ (new pwr_squelch_cc_impl(threshold, alpha, ramp, gate));
+ }
+
+ pwr_squelch_cc_impl::pwr_squelch_cc_impl(double threshold, double alpha,
+ int ramp, bool gate)
+ : gr_block("pwr_squelch_cc",
+ gr_make_io_signature(1, 1, sizeof(gr_complex)),
+ gr_make_io_signature(1, 1, sizeof(gr_complex))),
+ squelch_base_cc_impl("pwr_squelch_cc", ramp, gate),
+ d_iir(alpha)
+ {
+ set_threshold(threshold);
+ }
+
+ pwr_squelch_cc_impl::~pwr_squelch_cc_impl()
+ {
+ }
+
+ std::vector<float>
+ pwr_squelch_cc_impl::squelch_range() const
+ {
+ std::vector<float> r(3);
+ r[0] = -50.0; // min FIXME
+ r[1] = +50.0; // max FIXME
+ r[2] = (r[1] - r[0]) / 100; // step size
+
+ return r;
+ }
+
+ void
+ pwr_squelch_cc_impl::update_state(const gr_complex &in)
+ {
+ d_pwr = d_iir.filter(in.real()*in.real()+in.imag()*in.imag());
+ }
+
+ } /* namespace analog */
+} /* namespace gr */