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/*
gr-scan - A GNU Radio signal scanner
Copyright (C) 2015 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
Copyright (C) 2012 Nicholas Tomlinson
This program 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 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <argp.h>
#include <string>
class Arguments
{
public:
Arguments(int argc, char **argv) :
avg_size(1000),
bandwidth1(25000.0),
bandwidth2(-1.0),
spread(50000.0),
threshold(3.0),
centre_freq_1(87000000.0),
centre_freq_2(108000000.0),
sample_rate(2000000.0),
fft_width(1000.0),
step(-1.0),
ptime(1.0)
{
argp_parse (&argp_i, argc, argv, 0, 0, this);
}
unsigned int get_avg_size()
{
return avg_size;
}
double get_bandwidth1()
{
return bandwidth1;
}
double get_bandwidth2()
{
if (bandwidth2 < 0.0)/* User did not specify a coarse band */
return bandwidth1 * 8.0; /* I've found this to be a good choice for the coarse band */
else
return bandwidth2; /* If the user specified a bandwidth for this, use it */
}
double get_spread()
{
return spread;
}
double get_threshold()
{
return threshold;
}
double get_centre_freq_1()
{
return centre_freq_1;
}
double get_centre_freq_2()
{
return centre_freq_2;
}
double get_sample_rate()
{
return sample_rate;
}
double get_fft_width()
{
return fft_width;
}
double get_step()
{
if (step < 0.0)
return sample_rate / 4.0; // I've found this to be a good choice (slightly faster might be / 3.0)
else
return step;
}
double get_time()
{
return ptime;
}
std::string get_outcsv()
{
return outcsv;
}
private:
static error_t s_parse_opt(int key, char *arg, struct argp_state *state)
{
Arguments *arguments = static_cast<Arguments *>(state->input);
return arguments->parse_opt(key, arg, state);
}
error_t parse_opt(int key, char *arg, struct argp_state *state)
{
switch (key)
{
case 'a':
avg_size = atoi(arg);
break;
case 'f':
bandwidth1 = atof(arg) * 1000.0; //kHz
break;
case 'c':
bandwidth2 = atof(arg) * 1000.0; //kHz
break;
case 's':
spread = atof(arg) * 1000.0; //kHz
break;
case 't':
threshold = atof(arg);
break;
case 'x':
centre_freq_1 = atof(arg) * 1000000.0; //MHz
break;
case 'y':
centre_freq_2 = atof(arg) * 1000000.0; //MHz
break;
case 'r':
sample_rate = atof(arg) * 1000000.0; //MSamples/s
break;
case 'w':
fft_width = atoi(arg);
break;
case 'z':
step = atof(arg) * 1000000.0; //MHz
break;
case 'p':
ptime = atof(arg);
break;
case 'o':
outcsv = std::string(arg);
break;
case ARGP_KEY_ARG:
if (state->arg_num > 0)
argp_usage(state);
break;
case ARGP_KEY_END:
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static argp_option options[];
static argp argp_i;
unsigned int avg_size;
double bandwidth1;
double bandwidth2;
double spread;
double threshold;
double centre_freq_1;
double centre_freq_2;
double sample_rate;
double fft_width;
double step;
double ptime;
std::string outcsv;
};
argp_option Arguments::options[] = {
{"average", 'a', "COUNT", 0, "Average over COUNT samples (default: 1000)"},
{"fine-bandwidth", 'f', "FREQ", 0, "Bandwidth of the fine window in kHz (default: 25)"},
{"coarse-bandwidth", 'c', "FREQ", 0, "Bandwidth of the coarse window in kHz (default: fine-bandwidth * 8)"},
{"spread", 's', "FREQ", 0, "Minimum frequency between detected signals in kHz (default: 50)"},
{"threshold", 't', "POWER", 0, "Threshold for the difference between the coarse and fine filtered signals in dB (default: 3)"},
{"start-frequency", 'x', "FREQ", 0, "Start frequency in MHz (default: 87)"},
{"end-frequency", 'y', "FREQ", 0, "End frequency in MHz (default: 108)"},
{"sample-rate", 'r', "RATE", 0, "Samplerate in Msamples/s (default: 2)"},
{"fft-width", 'w', "COUNT", 0, "Width of FFT in samples (default: 1000)"},
{"step", 'z', "FREQ", 0, "Increment step in MHz (default: sample-rate / 4)"},
{"time", 'p', "TIME", 0, "Time in seconds to scan on each frequency (default: 1)"},
{"output-csv", 'o', "OUTCSV", 0, "Output results to CSV file (default: [none])"},
{0}
};
argp Arguments::argp_i = {options, s_parse_opt, 0, 0};
const char *argp_program_bug_address = "Jason@zx2c4.com";
const char *argp_program_version =
"gr-scan " VERSION " - A GNU Radio signal scanner\n"
"Copyright (C) 2015 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.\n"
"Copyright (C) 2012 Nicholas Tomlinson\n"
"\n"
"This program is free software: you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation, either version 3 of the License, or\n"
"(at your option) any later version.\n"
"\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program. If not, see <http://www.gnu.org/licenses/>.";
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