private static double[][] MakePulse(ShapedPulse pulse, int noSamples, int noDeadPts)
{
double[][] iqArray = new double[2][]
{
new double[noSamples],
new double[noSamples]
};
double[] amplitude = new double[noSamples];
double[] cosArray = new double[noSamples];
double[] sinArray = new double[noSamples];
for (int i = 0; i < (noSamples - noDeadPts); i++)
{
amplitude[i] = (pulse.Param0 + pulse.Param1 * Math.Sin(Math.PI * i / (noSamples - noDeadPts)) + pulse.Param2 * Math.Sin(2 * Math.PI * i / (noSamples - noDeadPts)));
cosArray[i] = Math.Cos(2 * Math.PI * (pulse.Freq - samplingRate) * i + pulse.Phase);
sinArray[i] = Math.Sin(2 * Math.PI * (pulse.Freq - samplingRate) * i + pulse.Phase);
iqArray[0][i] = amplitude[i] * cosArray[i];
iqArray[1][i] = amplitude[i] * sinArray[i];
}
for (int i = noSamples - noDeadPts + 1; i < noSamples; i++)
{
iqArray[0][i] = 0;
iqArray[1][i] = 0;
}
return(iqArray);
}
void MakePulses()
{
ShapedPulse pulse1, pulse2;
double[] pulsedata1, pulsedata2;
double[] blankData;
string resourceName = "Dev2";
int numberOfSamples, numberOfDeadPoints;
int waveformQuantum;
double frequency = 170000000;
double power = 5;
double iqRate = 100e6;
double actualIQRate;
double pulseLength = 1e-6;
double bandwidth = 2 / pulseLength;
double actualPulseLength;
double deadTime = 3e-7;
int waveformRepeatCount = 1;
try
{
// Initialise the NIRfsg session
_rfsgSession = new NIRfsg(resourceName, true, false);
// Subscribe to warnings
_rfsgSession.DriverOperation.Warning += new EventHandler <RfsgWarningEventArgs>(DriverOperation_Warning);
// Configure instrument
_rfsgSession.RF.Configure(frequency, power);
_rfsgSession.Arb.GenerationMode = RfsgWaveformGenerationMode.Script;
_rfsgSession.Arb.IQRate = iqRate;
_rfsgSession.Arb.PreFilterGain = ArbPreFilterGain;
_rfsgSession.RF.PowerLevelType = RfsgRFPowerLevelType.PeakPower;
// Enable finite generation
_rfsgSession.Arb.IsWaveformRepeatCountFinite = true;
_rfsgSession.Arb.WaveformRepeatCount = waveformRepeatCount;
// Configure bandwidth
_rfsgSession.Arb.SignalBandwidth = bandwidth;
// Get actual IQ rate
actualIQRate = _rfsgSession.Arb.IQRate;
Console.WriteLine("Sampling rate: " + actualIQRate);
// Calculate waveform quantum based on pulse length
waveformQuantum = _rfsgSession.Arb.WaveformCapabilities.WaveformQuantum;
numberOfSamples = CoerceToQuantum(actualIQRate * pulseLength, waveformQuantum);
Console.WriteLine("No. of samples: " + numberOfSamples);
// Get actual pulse length
actualPulseLength = numberOfSamples / actualIQRate;
Console.WriteLine("Pulse length: " + actualPulseLength + " s");
// Get number of dead points at the end
numberOfDeadPoints = Convert.ToInt32(actualIQRate * deadTime);
Console.WriteLine("No. of dead points: " + numberOfDeadPoints);
// Generate waveforms
pulse1 = new ShapedPulse(0, 0.9, 0.1, numberOfSamples, numberOfDeadPoints);
pulse2 = new ShapedPulse(1, 0, 0, numberOfSamples, numberOfDeadPoints);
pulsedata1 = pulse1.MakePulse();
pulsedata2 = pulse2.MakePulse();
blankData = Enumerable.Repeat(0.0, numberOfSamples).ToArray();
// Write waveforms to device
_rfsgSession.Arb.WriteWaveform("Pulse1", pulsedata1, blankData);
_rfsgSession.Arb.WriteWaveform("Pulse2", pulsedata2, blankData);
_rfsgSession.Arb.WriteWaveform("allZeros", blankData, blankData);
}
catch (Exception ex)
{
ShowError("MakePulses()", ex);
}
}
private static double[] MakePulse(ShapedPulse pulse, int noSamples, int noDeadPts)
{
double[] sineArray = new double[noSamples];
for (int i = 0; i < (noSamples - noDeadPts); i++)
{
sineArray[i] = pulse.Param0 + pulse.Param1 * Math.Sin(Math.PI * i / (noSamples - noDeadPts)) + pulse.Param2 * Math.Sin(2 * Math.PI * i / (noSamples - noDeadPts));
}
for (int i = noSamples - noDeadPts + 1; i < noSamples; i++)
{
sineArray[i] = 0;
}
return sineArray;
}
void MakePulses()
{
ShapedPulse pulse1, pulse2;
double[] pulsedata1, pulsedata2;
double[] blankData;
string resourceName = "Dev2";
int numberOfSamples, numberOfDeadPoints;
int waveformQuantum;
double frequency = 170000000;
double power = 5;
double iqRate = 100e6;
double actualIQRate;
double pulseLength = 1e-6;
double bandwidth = 2 / pulseLength;
double actualPulseLength;
double deadTime = 3e-7;
int waveformRepeatCount = 1;
try
{
// Initialise the NIRfsg session
_rfsgSession = new NIRfsg(resourceName, true, false);
// Subscribe to warnings
_rfsgSession.DriverOperation.Warning += new EventHandler<RfsgWarningEventArgs>(DriverOperation_Warning);
// Configure instrument
_rfsgSession.RF.Configure(frequency, power);
_rfsgSession.Arb.GenerationMode = RfsgWaveformGenerationMode.Script;
_rfsgSession.Arb.IQRate = iqRate;
_rfsgSession.Arb.PreFilterGain = ArbPreFilterGain;
_rfsgSession.RF.PowerLevelType = RfsgRFPowerLevelType.PeakPower;
// Enable finite generation
_rfsgSession.Arb.IsWaveformRepeatCountFinite = true;
_rfsgSession.Arb.WaveformRepeatCount = waveformRepeatCount;
// Configure bandwidth
_rfsgSession.Arb.SignalBandwidth = bandwidth;
// Get actual IQ rate
actualIQRate = _rfsgSession.Arb.IQRate;
Console.WriteLine("Sampling rate: " + actualIQRate);
// Calculate waveform quantum based on pulse length
waveformQuantum = _rfsgSession.Arb.WaveformCapabilities.WaveformQuantum;
numberOfSamples = CoerceToQuantum(actualIQRate * pulseLength, waveformQuantum);
Console.WriteLine("No. of samples: " + numberOfSamples);
// Get actual pulse length
actualPulseLength = numberOfSamples / actualIQRate;
Console.WriteLine("Pulse length: " + actualPulseLength + " s");
// Get number of dead points at the end
numberOfDeadPoints = Convert.ToInt32(actualIQRate * deadTime);
Console.WriteLine("No. of dead points: " + numberOfDeadPoints);
// Generate waveforms
pulse1 = new ShapedPulse(0, 0.9, 0.1, numberOfSamples, numberOfDeadPoints);
pulse2 = new ShapedPulse(1, 0, 0, numberOfSamples, numberOfDeadPoints);
pulsedata1 = pulse1.MakePulse();
pulsedata2 = pulse2.MakePulse();
blankData = Enumerable.Repeat(0.0, numberOfSamples).ToArray();
// Write waveforms to device
_rfsgSession.Arb.WriteWaveform("Pulse1", pulsedata1, blankData);
_rfsgSession.Arb.WriteWaveform("Pulse2", pulsedata2, blankData);
_rfsgSession.Arb.WriteWaveform("allZeros", blankData, blankData);
}
catch (Exception ex)
{
ShowError("MakePulses()", ex);
}
}
