GNU Radio v3.6.2-149-ga6d285d9 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004,2011,2012 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_ANALOG_PLL_REFOUT_CC_H 00024 #define INCLUDED_ANALOG_PLL_REFOUT_CC_H 00025 00026 #include <analog/api.h> 00027 #include <gr_sync_block.h> 00028 00029 namespace gr { 00030 namespace analog { 00031 00032 /*! 00033 * \brief Implements a PLL which locks to the input frequency and outputs a carrier 00034 * \ingroup sync_blk 00035 * 00036 * Input stream 0: complex 00037 * Output stream 0: complex 00038 * 00039 * This PLL locks onto a [possibly noisy] reference carrier on the 00040 * input and outputs a clean version which is phase and frequency 00041 * aligned to it. 00042 * 00043 * All settings max_freq and min_freq are in terms of radians per 00044 * sample, NOT HERTZ. The loop bandwidth determins the lock range 00045 * and should be set around pi/200 -- 2pi/100. \sa 00046 * pll_freqdet_cf, pll_carriertracking_cc 00047 */ 00048 class ANALOG_API pll_refout_cc : virtual public gr_sync_block 00049 { 00050 public: 00051 // gr::analog::pll_refout_cc::sptr 00052 typedef boost::shared_ptr<pll_refout_cc> sptr; 00053 00054 /* \brief Make PLL block that outputs the tracked carrier signal. 00055 * 00056 * \param loop_bw: control loop's bandwidth parameter. 00057 * \param max_freq: maximum (normalized) frequency PLL will lock to. 00058 * \param min_freq: minimum (normalized) frequency PLL will lock to. 00059 */ 00060 static sptr make(float loop_bw, float max_freq, float min_freq); 00061 }; 00062 00063 } /* namespace analog */ 00064 } /* namespace gr */ 00065 00066 #endif /* INCLUDED_ANALOG_PLL_REFOUT_CC_H */