LibreVNA/Software/PC_Application/VNA/vna.cpp
2020-11-30 22:27:38 +01:00

786 lines
28 KiB
C++

#include "vna.h"
#include <QGridLayout>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QPushButton>
#include <math.h>
#include <QToolBar>
#include <QMenu>
#include <QToolButton>
#include <QActionGroup>
#include <QSpinBox>
#include <QCheckBox>
#include <QComboBox>
#include <QSettings>
#include <algorithm>
#include <QMessageBox>
#include <QFileDialog>
#include <QFile>
#include <iostream>
#include <fstream>
#include <QDateTime>
#include "unit.h"
#include <queue>
#include "CustomWidgets/toggleswitch.h"
#include "Device/manualcontroldialog.h"
#include "Traces/tracemodel.h"
#include "tracewidgetvna.h"
#include "Traces/tracesmithchart.h"
#include "Traces/tracexyplot.h"
#include "Traces/traceimportdialog.h"
#include "CustomWidgets/tilewidget.h"
#include "CustomWidgets/siunitedit.h"
#include <QDockWidget>
#include "Traces/markerwidget.h"
#include "Tools/impedancematchdialog.h"
#include "Calibration/calibrationtracedialog.h"
#include "ui_main.h"
#include "Device/firmwareupdatedialog.h"
#include "preferences.h"
#include "Generator/signalgenwidget.h"
#include <QDesktopWidget>
#include <QApplication>
#include <QActionGroup>
#include <QErrorMessage>
#include "CustomWidgets/informationbox.h"
#include <QDebug>
VNA::VNA(AppWindow *window)
: Mode(window, "Vector Network Analyzer"),
central(new TileWidget(traceModel))
{
averages = 1;
calValid = false;
calMeasuring = false;
calDialog.reset();
// Create default traces
auto tS11 = new Trace("S11", Qt::yellow);
tS11->fromLivedata(Trace::LivedataType::Overwrite, Trace::LiveParameter::S11);
traceModel.addTrace(tS11);
auto tS12 = new Trace("S12", Qt::blue);
tS12->fromLivedata(Trace::LivedataType::Overwrite, Trace::LiveParameter::S12);
traceModel.addTrace(tS12);
auto tS21 = new Trace("S21", Qt::green);
tS21->fromLivedata(Trace::LivedataType::Overwrite, Trace::LiveParameter::S21);
traceModel.addTrace(tS21);
auto tS22 = new Trace("S22", Qt::red);
tS22->fromLivedata(Trace::LivedataType::Overwrite, Trace::LiveParameter::S22);
traceModel.addTrace(tS22);
auto tracesmith1 = new TraceSmithChart(traceModel);
tracesmith1->enableTrace(tS11, true);
auto tracesmith2 = new TraceSmithChart(traceModel);
tracesmith2->enableTrace(tS22, true);
auto traceXY1 = new TraceXYPlot(traceModel);
traceXY1->enableTrace(tS12, true);
auto traceXY2 = new TraceXYPlot(traceModel);
traceXY2->enableTrace(tS21, true);
connect(&traceModel, &TraceModel::requiredExcitation, this, &VNA::ExcitationRequired);
central->splitVertically();
central->Child1()->splitHorizontally();
central->Child2()->splitHorizontally();
central->Child1()->Child1()->setPlot(tracesmith1);
central->Child1()->Child2()->setPlot(traceXY1);
central->Child2()->Child1()->setPlot(traceXY2);
central->Child2()->Child2()->setPlot(tracesmith2);
// Create menu entries and connections
auto calMenu = new QMenu("Calibration", window);
window->menuBar()->insertMenu(window->getUi()->menuWindow->menuAction(), calMenu);
actions.insert(calMenu->menuAction());
auto calLoad = calMenu->addAction("Load");
saveCal = calMenu->addAction("Save");
calMenu->addSeparator();
saveCal->setEnabled(false);
connect(calLoad, &QAction::triggered, [=](){
cal.openFromFile();
if(cal.getType() == Calibration::Type::None) {
DisableCalibration();
} else {
ApplyCalibration(cal.getType());
}
});
connect(saveCal, &QAction::triggered, [=](){
cal.saveToFile();
});
auto calDisable = calMenu->addAction("Disabled");
calDisable->setCheckable(true);
calDisable->setChecked(true);
calMenu->addSeparator();
auto calData = calMenu->addAction("Calibration Measurements");
connect(calData, &QAction::triggered, [=](){
StartCalibrationDialog();
});
auto calEditKit = calMenu->addAction("Edit Calibration Kit");
connect(calEditKit, &QAction::triggered, [=](){
cal.getCalibrationKit().edit([=](){
if(calValid) {
ApplyCalibration(cal.getType());
}
});
});
calMenu->addSeparator();
auto calImportTerms = calMenu->addAction("Import error terms as traces");
calImportTerms->setEnabled(false);
connect(calImportTerms, &QAction::triggered, [=](){
auto import = new TraceImportDialog(traceModel, cal.getErrorTermTraces());
import->show();
});
auto calImportMeas = calMenu->addAction("Import measurements as traces");
calImportMeas->setEnabled(false);
connect(calImportMeas, &QAction::triggered, [=](){
auto import = new TraceImportDialog(traceModel, cal.getMeasurementTraces());
import->show();
});
portExtension.setCalkit(&cal.getCalibrationKit());
// Tools menu
auto toolsMenu = new QMenu("Tools", window);
window->menuBar()->insertMenu(window->getUi()->menuWindow->menuAction(), toolsMenu);
actions.insert(toolsMenu->menuAction());
auto impedanceMatching = toolsMenu->addAction("Impedance Matching");
connect(impedanceMatching, &QAction::triggered, this, &VNA::StartImpedanceMatching);
defaultCalMenu = new QMenu("Default Calibration", window);
assignDefaultCal = defaultCalMenu->addAction("Assign...");
removeDefaultCal = defaultCalMenu->addAction("Remove");
removeDefaultCal->setEnabled(false);
defaultCalMenu->setEnabled(false);
actions.insert(window->getUi()->menuDevice->addSeparator());
window->getUi()->menuDevice->addMenu(defaultCalMenu);
actions.insert(defaultCalMenu->menuAction());
connect(assignDefaultCal, &QAction::triggered, [=](){
if(window->getDevice()) {
auto key = "DefaultCalibration"+window->getDevice()->serial();
QSettings settings;
auto filename = QFileDialog::getOpenFileName(nullptr, "Load calibration data", settings.value(key).toString(), "Calibration files (*.cal)", nullptr, QFileDialog::DontUseNativeDialog);
if(!filename.isEmpty()) {
settings.setValue(key, filename);
removeDefaultCal->setEnabled(true);
}
}
});
connect(removeDefaultCal, &QAction::triggered, [=](){
QSettings settings;
settings.remove("DefaultCalibration"+window->getDevice()->serial());
removeDefaultCal->setEnabled(false);
});
// Sweep toolbar
auto tb_sweep = new QToolBar("Sweep");
auto eStart = new SIUnitEdit("Hz", " kMG", 6);
// calculate width required with expected string length
auto width = QFontMetrics(eStart->font()).width("3.00000GHz") + 15;
eStart->setFixedWidth(width);
eStart->setToolTip("Start frequency");
connect(eStart, &SIUnitEdit::valueChanged, this, &VNA::SetStartFreq);
connect(this, &VNA::startFreqChanged, eStart, &SIUnitEdit::setValueQuiet);
tb_sweep->addWidget(new QLabel("Start:"));
tb_sweep->addWidget(eStart);
auto eCenter = new SIUnitEdit("Hz", " kMG", 6);
eCenter->setFixedWidth(width);
eCenter->setToolTip("Center frequency");
connect(eCenter, &SIUnitEdit::valueChanged, this, &VNA::SetCenterFreq);
connect(this, &VNA::centerFreqChanged, eCenter, &SIUnitEdit::setValueQuiet);
tb_sweep->addWidget(new QLabel("Center:"));
tb_sweep->addWidget(eCenter);
auto eStop = new SIUnitEdit("Hz", " kMG", 6);
eStop->setFixedWidth(width);
eStop->setToolTip("Stop frequency");
connect(eStop, &SIUnitEdit::valueChanged, this, &VNA::SetStopFreq);
connect(this, &VNA::stopFreqChanged, eStop, &SIUnitEdit::setValueQuiet);
tb_sweep->addWidget(new QLabel("Stop:"));
tb_sweep->addWidget(eStop);
auto eSpan = new SIUnitEdit("Hz", " kMG", 6);
eSpan->setFixedWidth(width);
eSpan->setToolTip("Span");
connect(eSpan, &SIUnitEdit::valueChanged, this, &VNA::SetSpan);
connect(this, &VNA::spanChanged, eSpan, &SIUnitEdit::setValueQuiet);
tb_sweep->addWidget(new QLabel("Span:"));
tb_sweep->addWidget(eSpan);
auto bFull = new QPushButton(QIcon::fromTheme("zoom-fit-best", QIcon(":/icons/zoom-fit.png")), "");
bFull->setToolTip("Full span");
connect(bFull, &QPushButton::clicked, this, &VNA::SetFullSpan);
tb_sweep->addWidget(bFull);
auto bZoomIn = new QPushButton(QIcon::fromTheme("zoom-in", QIcon(":/icons/zoom-in.png")), "");
bZoomIn->setToolTip("Zoom in");
connect(bZoomIn, &QPushButton::clicked, this, &VNA::SpanZoomIn);
tb_sweep->addWidget(bZoomIn);
auto bZoomOut = new QPushButton(QIcon::fromTheme("zoom-out", QIcon(":/icons/zoom-out.png")), "");
bZoomOut->setToolTip("Zoom out");
connect(bZoomOut, &QPushButton::clicked, this, &VNA::SpanZoomOut);
tb_sweep->addWidget(bZoomOut);
window->addToolBar(tb_sweep);
toolbars.insert(tb_sweep);
// Acquisition toolbar
auto tb_acq = new QToolBar("Acquisition");
auto dbm = new QDoubleSpinBox();
width = QFontMetrics(dbm->font()).width("-30.00dBm") + 20;
dbm->setFixedWidth(width);
dbm->setRange(-100.0, 100.0);
dbm->setSingleStep(0.25);
dbm->setSuffix("dbm");
dbm->setToolTip("Stimulus level");
dbm->setKeyboardTracking(false);
connect(dbm, qOverload<double>(&QDoubleSpinBox::valueChanged), this, &VNA::SetSourceLevel);
connect(this, &VNA::sourceLevelChanged, dbm, &QDoubleSpinBox::setValue);
tb_acq->addWidget(new QLabel("Level:"));
tb_acq->addWidget(dbm);
auto points = new QSpinBox();
points->setFixedWidth(55);
points->setRange(1, 9999);
points->setSingleStep(100);
points->setToolTip("Points/sweep");
points->setKeyboardTracking(false);
connect(points, qOverload<int>(&QSpinBox::valueChanged), this, &VNA::SetPoints);
connect(this, &VNA::pointsChanged, [=](int p) {
points->blockSignals(true);
points->setValue(p);
points->blockSignals(false);
});
tb_acq->addWidget(new QLabel("Points:"));
tb_acq->addWidget(points);
auto eBandwidth = new SIUnitEdit("Hz", " k", 3);
eBandwidth->setFixedWidth(70);
eBandwidth->setToolTip("IF bandwidth");
connect(eBandwidth, &SIUnitEdit::valueChanged, this, &VNA::SetIFBandwidth);
connect(this, &VNA::IFBandwidthChanged, eBandwidth, &SIUnitEdit::setValueQuiet);
tb_acq->addWidget(new QLabel("IF BW:"));
tb_acq->addWidget(eBandwidth);
tb_acq->addWidget(new QLabel("Averaging:"));
lAverages = new QLabel("0/");
tb_acq->addWidget(lAverages);
auto sbAverages = new QSpinBox;
sbAverages->setRange(1, 99);
sbAverages->setFixedWidth(40);
connect(sbAverages, qOverload<int>(&QSpinBox::valueChanged), this, &VNA::SetAveraging);
connect(this, &VNA::averagingChanged, sbAverages, &QSpinBox::setValue);
tb_acq->addWidget(sbAverages);
window->addToolBar(tb_acq);
toolbars.insert(tb_acq);
// Calibration toolbar (and populate calibration menu)
auto tb_cal = new QToolBar("Calibration");
QLabel *cbEnableCal_label = new QLabel("Calibration:"); // correct object type
tb_cal->addWidget(cbEnableCal_label);
auto cbEnableCal = new QCheckBox;
tb_cal->addWidget(cbEnableCal);
auto cbType = new QComboBox();
auto calMenuGroup = new QActionGroup(this);
calMenuGroup->addAction(calDisable);
for(auto type : Calibration::Types()) {
cbType->addItem(Calibration::TypeToString(type), (int) type);
auto menuAction = new QAction(Calibration::TypeToString(type), calMenu);
calMenuGroup->addAction(menuAction);
connect(menuAction, &QAction::triggered, [=](){
ApplyCalibration(type);
});
connect(this, &VNA::CalibrationApplied, [=](Calibration::Type applied){
if(type == applied) {
menuAction->setChecked(true);
}
});
menuAction->setCheckable(true);
calMenu->insertAction(calDisable, menuAction);
}
auto calToolbarLambda = [=]() {
if(cbEnableCal->isChecked()) {
// Get requested calibration type from combobox
ApplyCalibration((Calibration::Type) cbType->itemData(cbType->currentIndex()).toInt());
} else {
DisableCalibration();
}
};
// Calibration connections
connect(cbEnableCal, &QCheckBox::stateChanged, calToolbarLambda);
connect(cbType, qOverload<int>(&QComboBox::currentIndexChanged), calToolbarLambda);
connect(this, &VNA::CalibrationDisabled, [=](){
cbType->blockSignals(true);
cbEnableCal->blockSignals(true);
calDisable->setChecked(true);
cbEnableCal->setCheckState(Qt::CheckState::Unchecked);
cbEnableCal_label->setStyleSheet("background-color: yellow"); // visually indicate loss of calibration
cbEnableCal_label->setToolTip("none"); // cal. file unknown at this moment
cbType->blockSignals(false);
cbEnableCal->blockSignals(false);
calImportTerms->setEnabled(false);
calImportMeas->setEnabled(false);
saveCal->setEnabled(false);
});
connect(calDisable, &QAction::triggered, this, &VNA::DisableCalibration);
connect(this, &VNA::CalibrationApplied, [=](Calibration::Type applied){
cbType->blockSignals(true);
cbEnableCal->blockSignals(true);
for(int i=0;i<cbType->count();i++) {
if(cbType->itemData(i).toInt() == (int) applied) {
cbType->setCurrentIndex(i);
break;
}
}
cbEnableCal->setCheckState(Qt::CheckState::Checked);
cbEnableCal_label->setStyleSheet(""); // restore default look of widget
cbEnableCal_label->setToolTip(cal.getCurrentCalibrationFile()); // on hover, show name of active cal. file
cbType->blockSignals(false);
cbEnableCal->blockSignals(false);
calImportTerms->setEnabled(true);
calImportMeas->setEnabled(true);
saveCal->setEnabled(true);
});
tb_cal->addWidget(cbType);
window->addToolBar(tb_cal);
toolbars.insert(tb_cal);
auto tb_portExtension = portExtension.createToolbar();
window->addToolBar(tb_portExtension);
toolbars.insert(tb_portExtension);
markerModel = new TraceMarkerModel(traceModel, this);
auto tracesDock = new QDockWidget("Traces");
tracesDock->setWidget(new TraceWidgetVNA(traceModel));
window->addDockWidget(Qt::LeftDockWidgetArea, tracesDock);
docks.insert(tracesDock);
auto markerWidget = new MarkerWidget(*markerModel);
auto markerDock = new QDockWidget("Marker");
markerDock->setWidget(markerWidget);
window->addDockWidget(Qt::BottomDockWidgetArea, markerDock);
docks.insert(markerDock);
// Set initial sweep settings
auto pref = Preferences::getInstance();
if(pref.Acquisition.alwaysExciteBothPorts) {
settings.excitePort1 = 1;
settings.excitePort2 = 1;
} else {
settings.excitePort1 = traceModel.PortExcitationRequired(1);
settings.excitePort2 = traceModel.PortExcitationRequired(2);
}
if(pref.Startup.RememberSweepSettings) {
LoadSweepSettings();
} else {
settings.f_start = pref.Startup.DefaultSweep.start;
settings.f_stop = pref.Startup.DefaultSweep.stop;
ConstrainAndUpdateFrequencies();
SetSourceLevel(pref.Startup.DefaultSweep.excitation);
SetIFBandwidth(pref.Startup.DefaultSweep.bandwidth);
SetAveraging(pref.Startup.DefaultSweep.averaging);
SetPoints(pref.Startup.DefaultSweep.points);
}
// Set ObjectName for toolbars and docks
for(auto d : findChildren<QDockWidget*>()) {
d->setObjectName(d->windowTitle());
}
for(auto t : findChildren<QToolBar*>()) {
t->setObjectName(t->windowTitle());
}
finalize(central);
}
void VNA::deactivate()
{
StoreSweepSettings();
Mode::deactivate();
}
void VNA::initializeDevice()
{
defaultCalMenu->setEnabled(true);
connect(window->getDevice(), &Device::DatapointReceived, this, &VNA::NewDatapoint, Qt::UniqueConnection);
// Check if default calibration exists and attempt to load it
QSettings s;
auto key = "DefaultCalibration"+window->getDevice()->serial();
if (s.contains(key)) {
auto filename = s.value(key).toString();
qDebug() << "Attempting to load default calibration file " << filename;
if(QFile::exists(filename)) {
if(cal.openFromFile(filename)) {
ApplyCalibration(cal.getType());
portExtension.setCalkit(&cal.getCalibrationKit());
qDebug() << "Calibration successful from " << filename;
} else {
qDebug() << "Calibration not successfull from: " << filename;
}
} else {
qDebug() << "Calibration file not found: " << filename;
}
removeDefaultCal->setEnabled(true);
} else {
qDebug() << "No default calibration file set for this device";
removeDefaultCal->setEnabled(false);
}
// Configure initial state of device
SettingsChanged();
}
void VNA::deviceDisconnected()
{
defaultCalMenu->setEnabled(false);
}
using namespace std;
void VNA::NewDatapoint(Protocol::Datapoint d)
{
d = average.process(d);
if(calMeasuring) {
if(average.currentSweep() == averages) {
// this is the last averaging sweep, use values for calibration
if(!calWaitFirst || d.pointNum == 0) {
calWaitFirst = false;
cal.addMeasurement(calMeasurement, d);
if(d.pointNum == settings.points - 1) {
calMeasuring = false;
qDebug() << "Calibration measurement" << cal.MeasurementToString(calMeasurement) << "complete";
emit CalibrationMeasurementComplete(calMeasurement);
}
}
}
int percentage = (((average.currentSweep() - 1) * 100) + (d.pointNum + 1) * 100 / settings.points) / averages;
calDialog.setValue(percentage);
}
if(calValid) {
cal.correctMeasurement(d);
}
portExtension.applyToMeasurement(d);
traceModel.addVNAData(d, settings);
emit dataChanged();
if(d.pointNum == settings.points - 1) {
UpdateAverageCount();
markerModel->updateMarkers();
}
static unsigned int lastPoint = 0;
if(d.pointNum > 0 && d.pointNum != lastPoint + 1) {
qWarning() << "Got point" << d.pointNum << "but last received point was" << lastPoint << "("<<(d.pointNum-lastPoint-1)<<"missed points)";
}
lastPoint = d.pointNum;
}
void VNA::UpdateAverageCount()
{
lAverages->setText(QString::number(average.getLevel()) + "/");
}
void VNA::SettingsChanged(std::function<void (Device::TransmissionResult)> cb)
{
settings.suppressPeaks = Preferences::getInstance().Acquisition.suppressPeaks ? 1 : 0;
if(window->getDevice()) {
window->getDevice()->Configure(settings, cb);
}
average.reset(settings.points);
traceModel.clearVNAData();
UpdateAverageCount();
emit traceModel.SpanChanged(settings.f_start, settings.f_stop);
}
void VNA::StartImpedanceMatching()
{
auto dialog = new ImpedanceMatchDialog(*markerModel);
dialog->show();
}
void VNA::SetStartFreq(double freq)
{
settings.f_start = freq;
if(settings.f_stop < freq) {
settings.f_stop = freq;
}
ConstrainAndUpdateFrequencies();
}
void VNA::SetStopFreq(double freq)
{
settings.f_stop = freq;
if(settings.f_start > freq) {
settings.f_start = freq;
}
ConstrainAndUpdateFrequencies();
}
void VNA::SetCenterFreq(double freq)
{
auto old_span = settings.f_stop - settings.f_start;
if (freq - old_span / 2 <= Device::Info().limits_minFreq) {
// would shift start frequency below minimum
settings.f_start = 0;
settings.f_stop = 2 * freq;
} else if(freq + old_span / 2 >= Device::Info().limits_maxFreq) {
// would shift stop frequency above maximum
settings.f_start = 2 * freq - Device::Info().limits_maxFreq;
settings.f_stop = Device::Info().limits_maxFreq;
} else {
settings.f_start = freq - old_span / 2;
settings.f_stop = freq + old_span / 2;
}
ConstrainAndUpdateFrequencies();
}
void VNA::SetSpan(double span)
{
auto old_center = (settings.f_start + settings.f_stop) / 2;
if(old_center < Device::Info().limits_minFreq + span / 2) {
// would shift start frequency below minimum
settings.f_start = Device::Info().limits_minFreq;
settings.f_stop = Device::Info().limits_minFreq + span;
} else if(old_center > Device::Info().limits_maxFreq - span / 2) {
// would shift stop frequency above maximum
settings.f_start = Device::Info().limits_maxFreq - span;
settings.f_stop = Device::Info().limits_maxFreq;
} else {
settings.f_start = old_center - span / 2;
settings.f_stop = settings.f_start + span;
}
ConstrainAndUpdateFrequencies();
}
void VNA::SetFullSpan()
{
settings.f_start = Device::Info().limits_minFreq;
settings.f_stop = Device::Info().limits_maxFreq;
ConstrainAndUpdateFrequencies();
}
void VNA::SpanZoomIn()
{
auto center = (settings.f_start + settings.f_stop) / 2;
auto old_span = settings.f_stop - settings.f_start;
settings.f_start = center - old_span / 4;
settings.f_stop = center + old_span / 4;
ConstrainAndUpdateFrequencies();
}
void VNA::SpanZoomOut()
{
auto center = (settings.f_start + settings.f_stop) / 2;
auto old_span = settings.f_stop - settings.f_start;
if(center > old_span) {
settings.f_start = center - old_span;
} else {
settings.f_start = 0;
}
settings.f_stop = center + old_span;
ConstrainAndUpdateFrequencies();
}
void VNA::SetSourceLevel(double level)
{
if(level > Device::Info().limits_cdbm_max / 100.0) {
level = Device::Info().limits_cdbm_max / 100.0;
} else if(level < Device::Info().limits_cdbm_min / 100.0) {
level = Device::Info().limits_cdbm_min / 100.0;
}
emit sourceLevelChanged(level);
settings.cdbm_excitation = level * 100;
SettingsChanged();
}
void VNA::SetPoints(unsigned int points)
{
if(points > Device::Info().limits_maxPoints) {
points = Device::Info().limits_maxPoints;
} else if (points < 2) {
points = 2;
}
emit pointsChanged(points);
settings.points = points;
SettingsChanged();
}
void VNA::SetIFBandwidth(double bandwidth)
{
if(bandwidth > Device::Info().limits_maxIFBW) {
bandwidth = Device::Info().limits_maxIFBW;
} else if(bandwidth < Device::Info().limits_minIFBW) {
bandwidth = Device::Info().limits_minIFBW;
}
settings.if_bandwidth = bandwidth;
emit IFBandwidthChanged(bandwidth);
SettingsChanged();
}
void VNA::SetAveraging(unsigned int averages)
{
this->averages = averages;
average.setAverages(averages);
emit averagingChanged(averages);
SettingsChanged();
}
void VNA::ExcitationRequired(bool port1, bool port2)
{
if(Preferences::getInstance().Acquisition.alwaysExciteBothPorts) {
port1 = true;
port2 = true;
}
// check if settings actually changed
if(settings.excitePort1 != port1
|| settings.excitePort2 != port2) {
settings.excitePort1 = port1;
settings.excitePort2 = port2;
SettingsChanged();
}
}
void VNA::DisableCalibration(bool force)
{
if(calValid || force) {
calValid = false;
emit CalibrationDisabled();
}
}
void VNA::ApplyCalibration(Calibration::Type type)
{
if(cal.calculationPossible(type)) {
try {
if(cal.constructErrorTerms(type)) {
calValid = true;
emit CalibrationApplied(type);
} else {
DisableCalibration(true);
}
} catch (runtime_error e) {
QMessageBox::critical(window, "Calibration failure", e.what());
DisableCalibration(true);
}
} else {
// Not all required traces available
InformationBox::ShowMessage("Missing calibration measurements", "Not all calibration measurements for this type of calibration have been taken. The calibration can be enabled after the missing measurements have been acquired.");
DisableCalibration(true);
StartCalibrationDialog(type);
}
}
void VNA::StartCalibrationMeasurement(Calibration::Measurement m)
{
auto device = window->getDevice();
if(!device) {
return;
}
// Stop sweep
StopSweep();
qDebug() << "Taking" << Calibration::MeasurementToString(m) << "measurement";
calMeasurement = m;
// Delete any already captured data of this measurement
cal.clearMeasurement(m);
calWaitFirst = true;
QString text = "Measuring \"";
text.append(Calibration::MeasurementToString(m));
text.append("\" parameters.");
calDialog.setLabelText(text);
calDialog.setCancelButtonText("Abort");
calDialog.setWindowTitle("Taking calibration measurement...");
calDialog.setValue(0);
calDialog.setWindowModality(Qt::ApplicationModal);
// always show the dialog
calDialog.setMinimumDuration(0);
connect(&calDialog, &QProgressDialog::canceled, [=]() {
// the user aborted the calibration measurement
calMeasuring = false;
cal.clearMeasurement(calMeasurement);
});
// Trigger sweep to start from beginning
SettingsChanged([=](Device::TransmissionResult){
// enable calibration measurement only in transmission callback (prevents accidental sampling of data which was still being processed)
calMeasuring = true;
});
}
void VNA::ConstrainAndUpdateFrequencies()
{
if(settings.f_stop > Device::Info().limits_maxFreq) {
settings.f_stop = Device::Info().limits_maxFreq;
}
if(settings.f_start > settings.f_stop) {
settings.f_start = settings.f_stop;
}
if(settings.f_start < Device::Info().limits_minFreq) {
settings.f_start = Device::Info().limits_minFreq;
}
emit startFreqChanged(settings.f_start);
emit stopFreqChanged(settings.f_stop);
emit spanChanged(settings.f_stop - settings.f_start);
emit centerFreqChanged((settings.f_stop + settings.f_start)/2);
SettingsChanged();
}
void VNA::LoadSweepSettings()
{
auto pref = Preferences::getInstance();
QSettings s;
settings.f_start = s.value("SweepStart", pref.Startup.DefaultSweep.start).toULongLong();
settings.f_stop = s.value("SweepStop", pref.Startup.DefaultSweep.stop).toULongLong();
SetPoints(s.value("SweepPoints", pref.Startup.DefaultSweep.points).toInt());
SetIFBandwidth(s.value("SweepBandwidth", pref.Startup.DefaultSweep.bandwidth).toUInt());
SetAveraging(s.value("SweepAveraging", pref.Startup.DefaultSweep.averaging).toInt());
SetSourceLevel(s.value("SweepLevel", pref.Startup.DefaultSweep.excitation).toDouble());
ConstrainAndUpdateFrequencies();
}
void VNA::StoreSweepSettings()
{
QSettings s;
s.setValue("SweepStart", static_cast<unsigned long long>(settings.f_start));
s.setValue("SweepStop", static_cast<unsigned long long>(settings.f_stop));
s.setValue("SweepBandwidth", settings.if_bandwidth);
s.setValue("SweepPoints", settings.points);
s.setValue("SweepAveraging", averages);
s.setValue("SweepLevel", (double) settings.cdbm_excitation / 100.0);
}
void VNA::StopSweep()
{
if(window->getDevice()) {
window->getDevice()->SetIdle();
}
}
void VNA::StartCalibrationDialog(Calibration::Type type)
{
auto traceDialog = new CalibrationTraceDialog(&cal, settings, type);
connect(traceDialog, &CalibrationTraceDialog::triggerMeasurement, this, &VNA::StartCalibrationMeasurement);
connect(traceDialog, &CalibrationTraceDialog::applyCalibration, this, &VNA::ApplyCalibration);
connect(this, &VNA::CalibrationMeasurementComplete, traceDialog, &CalibrationTraceDialog::measurementComplete);
connect(traceDialog, &CalibrationTraceDialog::calibrationInvalidated, [=](){
DisableCalibration(true);
InformationBox::ShowMessage("Calibration disabled", "The currently active calibration is no longer supported by the available measurements and was disabled.");
});
traceDialog->show();
}