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/*
Copyright 2006 Johnathan Corgan.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
This software 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.
*/
// Application level includes
#include "sample.h"
#include "util.h"
// wxWidgets includes
#include <wx/log.h>
Sample::Sample()
{
m_time = 0;
m_valid = false;
m_location = Spherical(0.0, 0.0);
m_heading = 0.0;
m_speed = 0.0;
m_in_phase = 0.0;
m_quadrature = 0.0;
m_phase = 0.0;
m_strength = 0.0;
m_volume = 0.0;
m_rate = 0;
m_filtering = 1;
m_error = 0.0;
m_ierror = 0.0;
m_qerror = 0.0;
}
Sample::Sample(const Sample &sample)
{
m_time = sample.m_time;
m_valid = sample.m_valid;
m_location = sample.m_location;
m_heading = sample.m_heading;
m_speed = sample.m_speed;
m_in_phase = sample.m_in_phase;
m_quadrature = sample.m_quadrature;
m_phase = sample.m_phase;
m_strength = sample.m_strength;
m_volume = sample.m_volume;
m_rate = sample.m_rate;
m_filtering = sample.m_filtering;
m_error = sample.m_error;
m_ierror = sample.m_ierror;
m_qerror = sample.m_qerror;
}
Sample::Sample(wxString &line)
{
char valid;
double lat, lon;
sscanf((char *)line.c_str(), "%c %i %lf %lf %f %f %f %f %f %f %f %f %f %f %i %i",
&valid,
&m_time,
&lat,
&lon,
&m_heading,
&m_speed,
&m_volume,
&m_strength,
&m_in_phase,
&m_quadrature,
&m_phase,
&m_error,
&m_ierror,
&m_qerror,
&m_rate,
&m_filtering);
if (valid == 'V')
m_valid = true;
else
m_valid = false;
m_location = Spherical(lat, lon);
}
void Sample::Dump(char *str, int len)
{
// vld tim lat lon hdg speed vol stren inphs quad phase error ierr qerr rt flt
snprintf(str, len, "%s %10i %10.5lf %10.5lf %5.1f %6.2f %7.5f %7.5f %9.6f %9.6f %9.6f %7.2f %9.6f %9.6f %i %i",
m_valid ? "V":"I",
m_time,
m_location.Latitude(),
m_location.Longitude(),
m_heading,
m_speed,
m_volume,
m_strength,
m_in_phase,
m_quadrature,
m_phase,
m_error,
m_ierror,
m_qerror,
m_rate,
m_filtering);
}
void Sample::CalcError(const Spherical &location, float &angle, float &ierror, float &qerror) const
{
float actual_bearing = bearing(m_location, location);
float sample_relative_bearing = degree_normalize(to_degrees(m_phase));
float sample_absolute_bearing = degree_normalize(sample_relative_bearing+m_heading);
angle = sample_absolute_bearing-actual_bearing;
if (angle < -180.0)
angle += 360;
if (angle > 180.0)
angle -= 360;
ierror = 0.0;
qerror = 0.0;
// Rotate I, Q by actual bearing
float i_act = cos(to_radians(-actual_bearing));
float q_act = sin(to_radians(-actual_bearing));
ierror = m_in_phase*i_act - m_quadrature*q_act;
qerror = m_quadrature*i_act + m_in_phase*q_act;
}
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