diff options
Diffstat (limited to 'gr-fcd/examples/c++/fcd_nfm_rx.cc')
-rw-r--r-- | gr-fcd/examples/c++/fcd_nfm_rx.cc | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/gr-fcd/examples/c++/fcd_nfm_rx.cc b/gr-fcd/examples/c++/fcd_nfm_rx.cc deleted file mode 100644 index 0ebc5d288..000000000 --- a/gr-fcd/examples/c++/fcd_nfm_rx.cc +++ /dev/null @@ -1,114 +0,0 @@ -/* - * Copyright 2011 Free Software Foundation, Inc. - * - * 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. - */ - -/* - * Simple GNU Radio C++ example for using the Funcube Dongle. - * - * Construct a simple narrow band FM receiver using the gr-fcd - * block as source. - * - * This example uses "hw:1" as FCD source device and the default - * audio device for output. - * - */ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -// Include header files for each block used in flowgraph -#include <gr_top_block.h> -#include <gr_firdes.h> -#include <gr_fir_filter_ccf.h> -#include <gr_quadrature_demod_cf.h> -#include <gr_audio_sink.h> -#include <fcd_source_c.h> - -// other includes -#include <iostream> -#include <boost/program_options.hpp> - - -namespace po = boost::program_options; - -int main(int argc, char **argv) -{ - int rate = 48000; // Audio card sample rate - float pi = 3.141592654; - - - //variables to be set by po - std::string device; - int freq; - float gain; - - //setup the program options - po::options_description desc("Command line options"); - desc.add_options() - ("help", "This help message") - ("device", po::value<std::string>(&device)->default_value("hw:1"), "Audio input device") - ("freq", po::value<int>(&freq)->default_value(145500), "RF frequency in kHz") - ("gain", po::value<float>(&gain)->default_value(20.0), "LNA gain in dB") - ; - po::variables_map vm; - po::store(po::parse_command_line(argc, argv, desc), vm); - po::notify(vm); - - //print the help message - if (vm.count("help")){ - std::cout << "Narrow band FM receiver example" << std::endl << desc << std::endl; - return ~0; - } - - - // Construct a top block that will contain flowgraph blocks. - gr_top_block_sptr tb = gr_make_top_block("fcd_nfm_rx"); - - // FCD source - fcd_source_c_sptr fcd = fcd_make_source_c(device); - fcd->set_freq_khz(freq); - fcd->set_lna_gain(gain); - - // Low pass filter - std::vector<float> taps = gr_firdes::low_pass(1.0, 96000, 5000.0, 1000.0); - gr_fir_filter_ccf_sptr filter = gr_make_fir_filter_ccf (2, taps); - - // FM demodulator - // gain = sample_rate / (2*pi*max_dev) - gr_quadrature_demod_cf_sptr demod = gr_make_quadrature_demod_cf (rate/(2.0*pi*5000.0)); - - // Audio sink - audio_sink::sptr sink = audio_make_sink(rate); - - // Connect blocks - tb->connect(fcd, 0, filter, 0); - tb->connect(filter, 0, demod, 0); - tb->connect(demod, 0, sink, 0); - - // Tell GNU Radio runtime to start flowgraph threads; the foreground thread - // will block until either flowgraph exits (this example doesn't) or the - // application receives SIGINT (e.g., user hits CTRL-C). - // - // Real applications may use tb->start() which returns, allowing the foreground - // thread to proceed, then later use tb->stop(), followed by tb->wait(), to cleanup - // GNU Radio before exiting. - tb->run(); - - // Exit normally. - return 0; -} |