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sdrangel/sdrbase/util/giro.h

100 lines
3.7 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2022 Jon Beniston, M7RCE <jon@beniston.com> //
// //
// 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 as 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 V3 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_GIRO_H
#define INCLUDE_GIRO_H
#include <QtCore>
#include <QTimer>
#include <QJsonDocument>
#include "export.h"
class QNetworkAccessManager;
class QNetworkReply;
// GIRO - Global Ionosphere Radio Observatory
// Gets MUFD, TEC, foF2 and other data for various stations around the world
// Also gets MUF and foF2 contours as GeoJSON
// Data from https://prop.kc2g.com/stations/
class SDRBASE_API GIRO : public QObject
{
Q_OBJECT
protected:
GIRO();
public:
// See the following paper for an explanation of some of these variables
// https://sbgf.org.br/mysbgf/eventos/expanded_abstracts/13th_CISBGf/A%20Simple%20Method%20to%20Calculate%20the%20Maximum%20Usable%20Frequency.pdf
struct GIROStationData {
QString m_station;
float m_latitude;
float m_longitude;
QDateTime m_dateTime;
float m_mufd; // Maximum usable frequency
float m_md; // Propagation coefficient? D=3000km?
float m_tec; // Total electron content
float m_foF2; // Critical frequency of F2 layer in ionosphere (highest frequency to be reflected)
float m_hmF2; // F2 layer height of peak electron density (km?)
float m_foE; // Critical frequency of E layer
int m_confidence;
GIROStationData() :
m_latitude(NAN),
m_longitude(NAN),
m_mufd(NAN),
m_md(NAN),
m_tec(NAN),
m_foF2(NAN),
m_hmF2(NAN),
m_foE(NAN),
m_confidence(-1)
{
}
};
static GIRO* create(const QString& service="prop.kc2g.com");
~GIRO();
void getDataPeriodically(int periodInMins);
void getMUFPeriodically(int periodInMins);
void getfoF2Periodically(int periodInMins);
private slots:
void getData();
void getMUF();
void getfoF2();
private slots:
void handleReply(QNetworkReply* reply);
signals:
void dataUpdated(const GIROStationData& data); // Called when new data available.
void mufUpdated(const QJsonDocument& doc);
void foF2Updated(const QJsonDocument& doc);
private:
bool containsNonNull(const QJsonObject& obj, const QString &key) const;
QTimer m_dataTimer; // Timer for periodic updates
QTimer m_mufTimer;
QTimer m_foF2Timer;
QNetworkAccessManager *m_networkManager;
};
#endif /* INCLUDE_GIRO_H */