public DemodulatedBlock DemodulateBlock(Block b, DemodulationConfig demodulationConfig, int[] tofChannelsToAnalyse)
{
if (!b.detectors.Contains("asymmetry"))
{
b.AddDetectorsToBlock();
}
int blockLength = b.Points.Count;
DemodulatedBlock db = new DemodulatedBlock(b.TimeStamp, b.Config, demodulationConfig);
Dictionary <string, double[]> pointDetectorData = new Dictionary <string, double[]>();
foreach (string d in demodulationConfig.GatedDetectors)
{
pointDetectorData.Add(d, GetGatedDetectorData(b, d, demodulationConfig.Gates.GetGate(d)));
}
foreach (string d in demodulationConfig.PointDetectors)
{
pointDetectorData.Add(d, GetPointDetectorData(b, d));
}
Dictionary <string, TOF[]> tofDetectorData = new Dictionary <string, TOF[]>();
foreach (string d in demodulationConfig.TOFDetectors)
{
tofDetectorData.Add(d, GetTOFDetectorData(b, d));
}
// ----Demodulate channels----
// --Build list of modulations--
List <Modulation> modulations = GetModulations(b);
// --Work out switch state for each point--
List <uint> switchStates = GetSwitchStates(modulations);
// --Calculate state signs for each analysis channel--
// The first index selects the analysis channel, the second the switchState
int numStates = (int)Math.Pow(2, modulations.Count);
int[,] stateSigns = GetStateSigns(numStates);
// --This is done for each point/gated detector--
foreach (string d in pointDetectorData.Keys)
{
int detectorIndex = b.detectors.IndexOf(d);
// We obtain one Channel Set for each detector
ChannelSet <PointWithError> channelSet = new ChannelSet <PointWithError>();
// Detector calibration
double calibration = ((TOF)((EDMPoint)b.Points[0]).Shot.TOFs[detectorIndex]).Calibration;
// Divide points into bins depending on switch state
List <List <double> > statePoints = new List <List <double> >(numStates);
for (int i = 0; i < numStates; i++)
{
statePoints.Add(new List <double>(blockLength / numStates));
}
for (int i = 0; i < blockLength; i++)
{
statePoints[(int)switchStates[i]].Add(pointDetectorData[b.detectors[detectorIndex]][i]);
}
int subLength = blockLength / numStates;
// For each analysis channel, calculate the mean and standard error, then add to ChannelSet
for (int channel = 0; channel < numStates; channel++)
{
RunningStatistics stats = new RunningStatistics();
for (int subIndex = 0; subIndex < subLength; subIndex++)
{
double onVal = 0.0;
double offVal = 0.0;
for (int i = 0; i < numStates; i++)
{
if (stateSigns[channel, i] == 1)
{
onVal += statePoints[i][subIndex];
}
else
{
offVal += statePoints[i][subIndex];
}
}
onVal /= numStates;
offVal /= numStates;
stats.Push(onVal - offVal);
}
PointWithError pointWithError = new PointWithError()
{
Value = stats.Mean, Error = stats.StandardErrorOfSampleMean
};
// add the channel to the ChannelSet
List <string> usedSwitches = new List <string>();
for (int i = 0; i < modulations.Count; i++)
{
if ((channel & (1 << i)) != 0)
{
usedSwitches.Add(modulations[i].Name);
}
}
string[] channelName = usedSwitches.ToArray();
// the SIG channel has a special name
if (channel == 0)
{
channelName = new string[] { "SIG" }
}
;
channelSet.AddChannel(channelName, pointWithError);
}
// Add the ChannelSet to the demodulated block
db.AddDetector(b.detectors[detectorIndex], calibration, channelSet);
}
// --This is done for each TOF detector--
foreach (string d in tofDetectorData.Keys)
{
int detectorIndex = b.detectors.IndexOf(d);
// We obtain one Channel Set for each detector
ChannelSet <TOFWithError> channelSet = new ChannelSet <TOFWithError>();
// Detector calibration
double calibration = ((TOF)((EDMPoint)b.Points[0]).Shot.TOFs[detectorIndex]).Calibration;
// Divide TOFs into bins depending on switch state
List <List <TOF> > statePoints = new List <List <TOF> >(numStates);
for (int i = 0; i < numStates; i++)
{
statePoints.Add(new List <TOF>(blockLength / numStates));
}
for (int i = 0; i < blockLength; i++)
{
statePoints[(int)switchStates[i]].Add(tofDetectorData[b.detectors[detectorIndex]][i]);
}
int subLength = blockLength / numStates;
// For each analysis channel, calculate the mean and standard error, then add to ChannelSet
foreach (int channel in tofChannelsToAnalyse)
{
TOFAccumulator tofAccumulator = new TOFAccumulator();
for (int subIndex = 0; subIndex < subLength; subIndex++)
{
TOF onTOF = new TOF();
TOF offTOF = new TOF();
for (int i = 0; i < numStates; i++)
{
if (stateSigns[channel, i] == 1)
{
onTOF += statePoints[i][subIndex];
}
else
{
offTOF += statePoints[i][subIndex];
}
}
onTOF /= numStates;
offTOF /= numStates;
tofAccumulator.Add(onTOF - offTOF);
}
// add the channel to the ChannelSet
List <string> usedSwitches = new List <string>();
for (int i = 0; i < modulations.Count; i++)
{
if ((channel & (1 << i)) != 0)
{
usedSwitches.Add(modulations[i].Name);
}
}
string[] channelName = usedSwitches.ToArray();
// the SIG channel has a special name
if (channel == 0)
{
channelName = new string[] { "SIG" }
}
;
channelSet.AddChannel(channelName, tofAccumulator.GetResult());
}
// If the detector is a molecule detector, add the special channels
if (MOLECULE_DETECTORS.Contains(d))
{
channelSet = AppendChannelSetWithSpecialValues(channelSet);
}
// Add the ChannelSet to the demodulated block
db.AddDetector(d, calibration, channelSet);
}
return(db);
}
private static double[] ConvertPointToArray(PointWithError p)
{
return(new double[2] {
p.Value, p.Error
});
}
