GNU Radio 3.6.5 C++ API

gr_quadrature_demod_cf.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2004 Free Software Foundation, Inc.
00004  *
00005  * This file is part of GNU Radio
00006  *
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  *
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_GR_QUADRATURE_DEMOD_CF_H
00024 #define INCLUDED_GR_QUADRATURE_DEMOD_CF_H
00025 
00026 #include <gr_core_api.h>
00027 #include <gr_sync_block.h>
00028 
00029 class gr_quadrature_demod_cf;
00030 typedef boost::shared_ptr<gr_quadrature_demod_cf> gr_quadrature_demod_cf_sptr;
00031 GR_CORE_API gr_quadrature_demod_cf_sptr gr_make_quadrature_demod_cf (float gain);
00032 
00033 /*!
00034  * \brief quadrature demodulator: complex in, float out
00035  *
00036  * This can be used to demod FM, FSK, GMSK, etc.
00037  * The input is complex baseband.
00038  */
00039 class GR_CORE_API gr_quadrature_demod_cf : public gr_sync_block
00040 {
00041   friend GR_CORE_API gr_quadrature_demod_cf_sptr gr_make_quadrature_demod_cf (float gain);
00042   gr_quadrature_demod_cf (float gain);
00043 
00044   float         d_gain;
00045 
00046  public:
00047   void set_gain(float gain) { d_gain = gain; }
00048   float gain() const { return d_gain; }
00049 
00050   int work (int noutput_items,
00051                  gr_vector_const_void_star &input_items,
00052                  gr_vector_void_star &output_items);
00053 };
00054 
00055 #endif /* INCLUDED_GR_QUADRATURE_DEMOD_CF_H */