1
0
Fork 0
flightgear/src/Radio/antenna.hxx
adrian e3e23b0915 Add function to calculate polarization loss
This function is reliable only for vertical polarization
2011-12-01 22:46:46 +02:00

53 lines
1.5 KiB
C++

// antenna.hxx -- FGRadioAntenna: class to represent antenna properties
//
// Written by Adrian Musceac, started December 2011.
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#ifndef __cplusplus
# error This library requires C++
#endif
#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
#include <Main/fg_props.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/debug/logstream.hxx>
class FGRadioAntenna
{
private:
void _load_antenna_pattern();
int _mirror_y;
int _mirror_z;
double _heading;
struct AntennaGain {
double azimuth;
double elevation_angle;
double gain;
};
typedef std::vector<AntennaGain> AntennaPattern;
AntennaPattern _pattern;
public:
FGRadioAntenna();
~FGRadioAntenna();
double calculate_gain(double azimuth, double theta);
};