1 files changed, 54 insertions, 0 deletions
diff --git a/gr-analog/include/analog/quadrature_demod_cf.h b/gr-analog/include/analog/quadrature_demod_cf.h
new file mode 100644
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+++ b/gr-analog/include/analog/quadrature_demod_cf.h
@@ -0,0 +1,54 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2012 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_QUADRATURE_DEMOD_CF_H
+#define INCLUDED_ANALOG_QUADRATURE_DEMOD_CF_H
+
+#include <analog/api.h>
+#include <gr_sync_block.h>
+
+namespace gr {
+  namespace analog {
+    
+    /*!
+     * \brief quadrature demodulator: complex in, float out
+     * \ingroup demodulation_blk
+     *
+     * This can be used to demod FM, FSK, GMSK, etc.
+     * The input is complex baseband.
+     */
+    class ANALOG_API quadrature_demod_cf : virtual public gr_sync_block
+    {
+    public:
+      // gr::analog::quadrature_demod_cf::sptr
+      typedef boost::shared_ptr<quadrature_demod_cf> sptr;
+
+      static sptr make(float gain);
+
+      virtual void set_gain(float gain) = 0;
+      virtual float gain() const = 0;
+    };
+
+  } /* namespace analog */
+} /* namespace gr */
+
+#endif /* INCLUDED_ANALOG_QUADRATURE_DEMOD_CF_H */