#include <simgear/math/sg_geodesy.hxx>
#include <simgear/debug/logstream.hxx>
-
+#include "antenna.hxx"
using std::string;
-class FGRadio
+class FGRadioTransmission
{
private:
bool isOperable() const
double _receiver_sensitivity;
double _transmitter_power;
- double _antenna_gain;
- std::map<string, double[2]> _mat_database;
+ double _tx_antenna_height;
+ double _rx_antenna_height;
+ double _rx_antenna_gain;
+ double _tx_antenna_gain;
+ double _rx_line_losses;
+ double _tx_line_losses;
+ double _terrain_sampling_distance;
+ int _polarization;
+ std::map<string, double[2]> _mat_database;
+ SGPropertyNode *_root_node;
int _propagation_model; /// 0 none, 1 round Earth, 2 ITM
+ double polarization_loss();
double ITM_calculate_attenuation(SGGeod tx_pos, double freq, int ground_to_air);
double LOS_calculate_attenuation(SGGeod tx_pos, double freq, int ground_to_air);
- void clutterLoss(double freq, double distance_m, double itm_elev[], std::deque<string> materials,
+ void calculate_clutter_loss(double freq, double itm_elev[], std::deque<string> &materials,
double transmitter_height, double receiver_height, int p_mode,
double horizons[], double &clutter_loss);
- void set_material_properties();
void get_material_properties(string mat_name, double &height, double &density);
public:
- FGRadio();
- ~FGRadio();
+ FGRadioTransmission();
+ ~FGRadioTransmission();
-
+ // a couple of setters and getters for convenience
void setFrequency(double freq, int radio);
double getFrequency(int radio);
void setTxPower(double txpower) { _transmitter_power = txpower; };
+ void setRxSensitivity(double sensitivity) { _receiver_sensitivity = sensitivity; };
+ void setTxAntennaHeight(double tx_antenna_height) { _tx_antenna_height = tx_antenna_height; };
+ void setRxAntennaHeight(double rx_antenna_height) { _rx_antenna_height = rx_antenna_height; };
+ void setTxAntennaGain(double tx_antenna_gain) { _tx_antenna_gain = tx_antenna_gain; };
+ void setRxAntennaGain(double rx_antenna_gain) { _rx_antenna_gain = rx_antenna_gain; };
+ void setTxLineLosses(double tx_line_losses) { _tx_line_losses = tx_line_losses; };
+ void setRxLineLosses(double rx_line_losses) { _rx_line_losses = rx_line_losses; };
void setPropagationModel(int model) { _propagation_model = model; };
+ void setPolarization(int polarization) { _polarization = polarization; };
+ // accessory functions for unit conversions
+ double watt_to_dbm(double power_watt);
+ double dbm_to_watt(double dbm);
+ double dbm_to_microvolt(double dbm);
+
+
// transmission_type: 0 for air to ground 1 for ground to air, 2 for air to air, 3 for pilot to ground, 4 for pilot to air
void receiveATC(SGGeod tx_pos, double freq, string text, int transmission_type);
void receiveChat(SGGeod tx_pos, double freq, string text, int transmission_type);
// returns signal quality
// transmission_type: 0 for VOR, 1 for ILS
double receiveNav(SGGeod tx_pos, double freq, int transmission_type);
-
+ double receiveBeacon(double lat, double lon, double elev, double heading, double pitch);
};