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/*
* Copyright 2006 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* 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 2, 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.
*/
#include <cstdio>
#include <ezdop.h>
int chunks = 3600;
const static int samples = 250;
int rate = 250;
static complex<float> buffer[samples];
int main(int argc, char *argv)
{
ezdop *dop = new ezdop();
printf("Initializing EZDOP...");
if (dop->init())
printf("done.\n");
else
printf("failed.\n");
printf("EZDOP reports %s.\n", dop->is_online() ? "online" : "offline");
printf("Setting EZDOP rate...");
if (dop->set_rate(rate))
printf("done.\n");
else
printf("failed.\n");
printf("Telling EZDOP to rotate...");
if (dop->rotate())
printf("done.\n");
else
printf("failed.\n");
printf("Telling EZDOP to stream...");
if (dop->stream())
printf("done.\n");
else
printf("failed.\n");
float volume;
for (int i = 0; i < chunks; i++) {
printf("Asking EZDOP for %i samples...", samples);
int rd = dop->read_iq(buffer, samples, volume);
printf("got %i --- ", rd);
if (rd != samples)
printf("*****\n");
complex<float> average = complex<float>(0.0, 0.0);
for (int j = 0; j < rd; j++) {
average += buffer[j];
}
float I = average.real()/rd;
float Q = average.imag()/rd;
float M = std::sqrt(I*I+Q*Q);
float dbfs = 20*std::log(M/1.4142135);
printf("I=%f Q=%f M=%f dbfs=%f\n", I, Q, M, dbfs);
}
printf("Telling EZDOP to stop streaming...");
if (dop->stop_streaming())
printf("done.\n");
else
printf("failed.\n");
printf("Telling EZDOP to stop stop rotating...");
if (dop->stop_rotating())
printf("done.\n");
else
printf("failed.\n");
printf("Releasing EZDOP...");
if (dop->finish())
printf("done.\n");
else
printf("failed.\n");
delete dop;
}
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