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Add decode of Mode-A transonder (Squawk) code

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This commit is contained in:
Jon Beniston 2020-11-10 12:03:36 +00:00
parent ea213bf6cc
commit 599c31493a
4 changed files with 50 additions and 19 deletions
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47
plugins/channelrx/demodadsb/adsbdemodgui.cpp
View File

@ -61,16 +61,17 @@
#define ADSB_COL_LONGITUDE 11
#define ADSB_COL_CATEGORY 12
#define ADSB_COL_STATUS 13
#define ADSB_COL_REGISTRATION 14
#define ADSB_COL_COUNTRY 15
#define ADSB_COL_REGISTERED 16
#define ADSB_COL_MANUFACTURER 17
#define ADSB_COL_OWNER 18
#define ADSB_COL_OPERATOR_ICAO 19
#define ADSB_COL_TIME 20
#define ADSB_COL_FRAMECOUNT 21
#define ADSB_COL_CORRELATION 22
#define ADSB_COL_RSSI 23
#define ADSB_COL_SQUAWK 14
#define ADSB_COL_REGISTRATION 15
#define ADSB_COL_COUNTRY 16
#define ADSB_COL_REGISTERED 17
#define ADSB_COL_MANUFACTURER 18
#define ADSB_COL_OWNER 19
#define ADSB_COL_OPERATOR_ICAO 20
#define ADSB_COL_TIME 21
#define ADSB_COL_FRAMECOUNT 22
#define ADSB_COL_CORRELATION 23
#define ADSB_COL_RSSI 24
const char *Aircraft::m_speedTypeNames[] = {
"GS", "TAS", "IAS"
@ -617,6 +618,7 @@ void ADSBDemodGUI::handleADSB(
ui->adsbData->setItem(row, ADSB_COL_LONGITUDE, aircraft->m_longitudeItem);
ui->adsbData->setItem(row, ADSB_COL_CATEGORY, aircraft->m_emitterCategoryItem);
ui->adsbData->setItem(row, ADSB_COL_STATUS, aircraft->m_statusItem);
ui->adsbData->setItem(row, ADSB_COL_SQUAWK, aircraft->m_squawkItem);
ui->adsbData->setItem(row, ADSB_COL_REGISTRATION, aircraft->m_registrationItem);
ui->adsbData->setItem(row, ADSB_COL_COUNTRY, aircraft->m_countryItem);
ui->adsbData->setItem(row, ADSB_COL_REGISTERED, aircraft->m_registeredItem);
@ -957,12 +959,27 @@ void ADSBDemodGUI::handleADSB(
{
// Aircraft status
int st = data[4] & 0x7; // Subtype
int es = (data[5] >> 5) & 0x7; // Emergency state
if (st == 1)
{
int es = (data[5] >> 5) & 0x7; // Emergency state
int modeA = ((data[5] << 8) & 0x1f00) | (data[6] & 0xff); // Mode-A code (squawk)
aircraft->m_status = emergencyStatus[es];
else
aircraft->m_status = QString("");
aircraft->m_statusItem->setText(aircraft->m_status);
aircraft->m_statusItem->setText(aircraft->m_status);
int a, b, c, d;
c = ((modeA >> 12) & 1) | ((modeA >> (10-1)) & 0x2) | ((modeA >> (8-2)) & 0x4);
a = ((modeA >> 11) & 1) | ((modeA >> (9-1)) & 0x2) | ((modeA >> (7-2)) & 0x4);
b = ((modeA >> 5) & 1) | ((modeA >> (3-1)) & 0x2) | ((modeA << (1)) & 0x4);
d = ((modeA >> 4) & 1) | ((modeA >> (2-1)) & 0x2) | ((modeA << (2)) & 0x4);
aircraft->m_squawk = a*1000 + b*100 + c*10 + d;
if (modeA & 0x40)
aircraft->m_squawkItem->setText(QString("%1 IDENT").arg(aircraft->m_squawk, 4, 10, QLatin1Char('0')));
else
aircraft->m_squawkItem->setText(QString("%1").arg(aircraft->m_squawk, 4, 10, QLatin1Char('0')));
}
else if (st == 2)
{
// TCAS/ACAS RA Broadcast
}
}
else if (tc == 29)
{
@ -1872,6 +1889,7 @@ void ADSBDemodGUI::resizeTable()
ui->adsbData->setItem(row, ADSB_COL_LONGITUDE, new QTableWidgetItem("-180.00000"));
ui->adsbData->setItem(row, ADSB_COL_CATEGORY, new QTableWidgetItem("Heavy"));
ui->adsbData->setItem(row, ADSB_COL_STATUS, new QTableWidgetItem("No emergency"));
ui->adsbData->setItem(row, ADSB_COL_SQUAWK, new QTableWidgetItem("Squawk"));
ui->adsbData->setItem(row, ADSB_COL_REGISTRATION, new QTableWidgetItem("G-12345"));
ui->adsbData->setItem(row, ADSB_COL_COUNTRY, new QTableWidgetItem("Country"));
ui->adsbData->setItem(row, ADSB_COL_REGISTERED, new QTableWidgetItem("Registered"));
@ -1897,6 +1915,7 @@ void ADSBDemodGUI::resizeTable()
ui->adsbData->removeCellWidget(row, ADSB_COL_LONGITUDE);
ui->adsbData->removeCellWidget(row, ADSB_COL_CATEGORY);
ui->adsbData->removeCellWidget(row, ADSB_COL_STATUS);
ui->adsbData->removeCellWidget(row, ADSB_COL_SQUAWK);
ui->adsbData->removeCellWidget(row, ADSB_COL_REGISTRATION);
ui->adsbData->removeCellWidget(row, ADSB_COL_COUNTRY);
ui->adsbData->removeCellWidget(row, ADSB_COL_REGISTERED);

3
plugins/channelrx/demodadsb/adsbdemodgui.h
View File

@ -91,6 +91,7 @@ struct Aircraft {
int m_verticalRate; // Vertical climb rate in ft/min
QString m_emitterCategory; // Aircraft type
QString m_status; // Aircraft status
int m_squawk; // Mode-A code
Real m_range; // Distance from station to aircraft
Real m_azimuth; // Azimuth from station to aircraft
Real m_elevation; // Elevation from station to aicraft;
@ -138,6 +139,7 @@ struct Aircraft {
QTableWidgetItem *m_azElItem;
QTableWidgetItem *m_emitterCategoryItem;
QTableWidgetItem *m_statusItem;
QTableWidgetItem *m_squawkItem;
QTableWidgetItem *m_registrationItem;
QTableWidgetItem *m_countryItem;
QTableWidgetItem *m_registeredItem;
@ -193,6 +195,7 @@ struct Aircraft {
m_longitudeItem = new QTableWidgetItem();
m_emitterCategoryItem = new QTableWidgetItem();
m_statusItem = new QTableWidgetItem();
m_squawkItem = new QTableWidgetItem();
m_registrationItem = new QTableWidgetItem();
m_countryItem = new QTableWidgetItem();
m_registeredItem = new QTableWidgetItem();

18
plugins/channelrx/demodadsb/adsbdemodgui.ui
View File

@ -693,6 +693,14 @@
<string>Aircraft emergency status</string>
</property>
</column>
<column>
<property name="text">
<string>Squawk</string>
</property>
<property name="toolTip">
<string>Mode-A transponder code</string>
</property>
</column>
<column>
<property name="text">
<string>Reg</string>
@ -844,6 +852,11 @@
<extends>QWidget</extends>
<header location="global">QtQuickWidgets/QQuickWidget</header>
</customwidget>
<customwidget>
<class>ButtonSwitch</class>
<extends>QToolButton</extends>
<header>gui/buttonswitch.h</header>
</customwidget>
<customwidget>
<class>RollupWidget</class>
<extends>QWidget</extends>
@ -862,11 +875,6 @@
<header>gui/valuedialz.h</header>
<container>1</container>
</customwidget>
<customwidget>
<class>ButtonSwitch</class>
<extends>QToolButton</extends>
<header>gui/buttonswitch.h</header>
</customwidget>
</customwidgets>
<tabstops>
<tabstop>deltaFrequency</tabstop>

1
plugins/channelrx/demodadsb/readme.md
View File

@ -109,6 +109,7 @@ The table displays the decoded ADS-B data for each aircraft along side data avai
* Longitude - Horizontal position coordinate, in decimal degrees. (ADS-B)
* Category - The vehicle category, such as Light, Large, Heavy or Rotorcraft. (ADS-B)
* Status - The status of the flight, including if there is an emergency. (ADS-B)
* Squawk - The squawk code (Mode-A transponder code). (ADS-B)
* Registration - The registration number of the aircraft. (DB)
* Country - The flag of the country the aircraft is registered in. (DB)
* Registered - The date when the aircraft was registered. (DB)