GNU Radio v3.6.2-149-ga6d285d9 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004,2012 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_FILTER_HILBERT_FC_H 00024 #define INCLUDED_FILTER_HILBERT_FC_H 00025 00026 #include <filter/api.h> 00027 #include <gr_sync_block.h> 00028 #include <gr_types.h> 00029 00030 namespace gr { 00031 namespace filter { 00032 00033 class FILTER_API hilbert_fc : virtual public gr_sync_block 00034 { 00035 public: 00036 // gr::filter::hilbert_fc::sptr 00037 typedef boost::shared_ptr<hilbert_fc> sptr; 00038 00039 /*! 00040 * \brief Hilbert transformer. 00041 * \ingroup filter_blk 00042 * 00043 * real output is input appropriately delayed. 00044 * imaginary output is hilbert filtered (90 degree phase shift) 00045 * version of input. 00046 */ 00047 static sptr make(unsigned int ntaps); 00048 }; 00049 00050 } /* namespace filter */ 00051 } /* namespace gr */ 00052 00053 #endif /* INCLUDED_FILTER_HILBERT_FC_H */