public void InitializeParameters()
{
//shared Parameters
centerFrequency = 3e9; //Hz
resourceName = "5840";
filePath = @"C:\Users\Public\Documents\National Instruments\RFIC Test Software\Waveforms\LTE_FDD_UL_1x20MHz_256QAM_OS4.tdms";
signalStringSpecan = "specanSig0";
resultStringSpecan = "specanResult0";
//Tuner Configration
tunerAddress = "10.0.0.1";
commonConfiguration = FocusTuner.CommonConfiguration.GetDefault();
commonConfiguration.CalibrationID = 1;
gammaSweep = GetConstantVSWR(2, 20);
//Generator Configuiration
sgInstrConfig = SG.InstrumentConfiguration.GetDefault();
sgInstrConfig.CarrierFrequency_Hz = centerFrequency;
sgInstrConfig.DutAverageInputPower_dBm = -10.0;
sgInstrConfig.ExternalAttenuation_dB = 0;
//Analyzer Configuration
saInstrConfig = RFmxInstr.InstrumentConfiguration.GetDefault();
saCommonConfig = CommonConfiguration.GetDefault();
saCommonConfig.ExternalAttenuation_dB = 0;
saCommonConfig.CenterFrequency_Hz = centerFrequency;
saCommonConfig.ReferenceLevel_dBm = 0.0;
saAutolevelConfig = AutoLevelConfiguration.GetDefault();
saAutolevelConfig.Enabled = true;
txpConfigurationSpecAn = RFmxSpecAn.TxpConfiguration.GetDefault();
txpConfigurationSpecAn.RbwFilterType = RFmxSpecAnMXTxpRbwFilterType.None;
txpConfigurationSpecAn.RrcAlpha = 0;
}
private void CommitTestConfiguration(NIRfsg rfsg, RFmxInstrMX instr)
{
SG.DownloadWaveform(rfsg, lteTdd10Waveform);
SG.ConfigureContinuousGeneration(rfsg, lteTdd10Waveform);
var lteCommonConfig = CommonConfiguration.GetDefault();
string instrumentModel = rfsg.Identity.InstrumentModel;
if (Regex.IsMatch(instrumentModel, "NI PXIe-5830"))
{
lteCommonConfig.SelectedPorts = "if1";
lteCommonConfig.CenterFrequency_Hz = 6.5e9;
}
else if (Regex.IsMatch(instrumentModel, "NI PXIe-5831"))
{
lteCommonConfig.SelectedPorts = "rf1/port0";
lteCommonConfig.CenterFrequency_Hz = 28e9;
}
var lte = instr.GetLteSignalConfiguration();
RFmxLTE.ConfigureCommon(lte, lteCommonConfig);
RFmxLTE.ConfigureStandard(lte, RFmxLTE.StandardConfiguration.GetDefault());
RFmxLTE.ConfigureModAcc(lte, RFmxLTE.ModAccConfiguration.GetDefault());
lte.Commit("");
rfsg.Utility.Commit();
}
public override Task <RFmxCommonConfiguration> GetDefaultCommonConfiguration(RFmxSession request, ServerCallContext context)
{
var defaultCommonConfig = CommonConfiguration.GetDefault();
return(Task.FromResult(new RFmxCommonConfiguration()
{
Session = request,
SelectedPorts = defaultCommonConfig.SelectedPorts,
CenterFrequencyHz = defaultCommonConfig.CenterFrequency_Hz,
ReferenceLevelDBm = defaultCommonConfig.ReferenceLevel_dBm,
ExternalAttenuationDB = defaultCommonConfig.ExternalAttenuation_dB,
TriggerEnabled = defaultCommonConfig.TriggerEnabled,
DigitalTriggerSource = defaultCommonConfig.DigitalTriggerSource,
TriggerDelayS = defaultCommonConfig.TriggerDelay_s
}));
}
public void TestOfflineAnalysisSingleCarrierTdd()
{
RFmxInstrMX instr = new RFmxInstrMX("", "AnalysisOnly=1");
RFmxLteMX lte = instr.GetLteSignalConfiguration();
ConfigureCommon(lte, CommonConfiguration.GetDefault());
StandardConfiguration signalConfig = StandardConfiguration.GetDefault();
signalConfig.DuplexScheme = RFmxLteMXDuplexScheme.Tdd;
ConfigureStandard(lte, signalConfig);
ModAccConfiguration modAccConfig = ModAccConfiguration.GetDefault();
modAccConfig.MeasurementOffset = 4;
ConfigureModAcc(lte, modAccConfig);
lte.Commit("");
instr.GetRecommendedIQPreTriggerTime("", out double pretriggerTime);
PrecisionTimeSpan timeOffset = new PrecisionTimeSpan(-pretriggerTime);
Waveform wfm = LoadWaveformFromTDMS(@"Support Files\LTE_TDD_2.0.tdms");
Buffer <ComplexSingle> readBuffer = wfm.Data.GetBuffer(true);
WritableBuffer <ComplexSingle> writeBuffer = wfm.Data.GetWritableBuffer();
int sampleOffset = (int)Math.Round(pretriggerTime * wfm.SampleRate);
for (int i = 0; i < readBuffer.Size; i++)
{
writeBuffer[i] = readBuffer[(i - sampleOffset + readBuffer.Size) % readBuffer.Size];
}
wfm.Data.PrecisionTiming = PrecisionWaveformTiming.CreateWithRegularInterval(
wfm.Data.PrecisionTiming.SampleInterval, timeOffset);
lte.AnalyzeIQ("", "", wfm.Data, true, out _);
ModAccResults modAccResults = FetchModAcc(lte);
instr.Close();
Assert.IsTrue(modAccResults.ComponentCarrierResults[0].MeanRmsCompositeEvm < 0.001);
}
static void Main()
{
#region Configure Generation
string resourceName = "VST2";
string filePath = Path.GetFullPath(@"Support Files\80211a_20M_48Mbps.tdms");
NIRfsg nIRfsg = new NIRfsg(resourceName, false, false);
InstrumentConfiguration instrConfig = InstrumentConfiguration.GetDefault();
instrConfig.CarrierFrequency_Hz = 2.412e9;
ConfigureInstrument(nIRfsg, instrConfig);
Waveform waveform = LoadWaveformFromTDMS(filePath);
DownloadWaveform(nIRfsg, waveform);
WaveformTimingConfiguration timing = new WaveformTimingConfiguration
{
DutyCycle_Percent = 60,
PreBurstTime_s = 1e-9,
PostBurstTime_s = 1e-9,
BurstStartTriggerExport = "PXI_Trig0"
};
PAENConfiguration paenConfig = new PAENConfiguration
{
PAEnableMode = PAENMode.Dynamic,
PAEnableTriggerExportTerminal = "PFI0",
PAEnableTriggerMode = RfsgMarkerEventOutputBehaviour.Toggle
};
ConfigureBurstedGeneration(nIRfsg, waveform, timing, paenConfig, out double period, out _);
nIRfsg.Initiate();
#endregion
RFmxInstrMX instr = new RFmxInstrMX("VST2", "");
RFmxWlanMX wlan = instr.GetWlanSignalConfiguration();
instr.GetWlanSignalConfiguration();
CommonConfiguration commonConfiguration = CommonConfiguration.GetDefault();
commonConfiguration.CenterFrequency_Hz = 2.412e9;
AutoLevelConfiguration autoLevel = new AutoLevelConfiguration
{
AutoLevelMeasureTime_s = period,
AutoLevelReferenceLevel = true
};
SA.RFmxWLAN.ConfigureCommon(instr, wlan, commonConfiguration, autoLevel);
SignalConfiguration signal = SignalConfiguration.GetDefault();
signal.AutoDetectSignal = false;
signal.ChannelBandwidth_Hz = 20e6;
signal.Standard = RFmxWlanMXStandard.Standard802_11ag;
SA.RFmxWLAN.ConfigureSignal(wlan, signal);
TxPConfiguration txpConfig = new TxPConfiguration
{
AveragingCount = 10,
MaximumMeasurementInterval_s = waveform.BurstLength_s,
AveragingEnabled = RFmxWlanMXTxpAveragingEnabled.True
};
SA.RFmxWLAN.ConfigureTxP(wlan, txpConfig);
OFDMModAccConfiguration modAccConfig = OFDMModAccConfiguration.GetDefault();
modAccConfig.OptimizeDynamicRangeForEvmEnabled = RFmxWlanMXOfdmModAccOptimizeDynamicRangeForEvmEnabled.False;
modAccConfig.AveragingEnabled = RFmxWlanMXOfdmModAccAveragingEnabled.True;
SA.RFmxWLAN.ConfigureOFDMModAcc(wlan, modAccConfig);
TxPServoConfiguration servoConfig = TxPServoConfiguration.GetDefault();
servoConfig.TargetTxPPower_dBm = 0.5;
SA.RFmxWLAN.TxPServoPower(wlan, nIRfsg, servoConfig, autoLevel);
SEMConfiguration semConfig = SEMConfiguration.GetDefault();
SA.RFmxWLAN.ConfigureSEM(wlan, semConfig);
wlan.Initiate("", "");
TxPResults txpRes = SA.RFmxWLAN.FetchTxP(wlan);
OFDMModAccResults modAccResults = SA.RFmxWLAN.FetchOFDMModAcc(wlan);
SEMResults semResults = SA.RFmxWLAN.FetchSEM(wlan);
Console.WriteLine("TXP Avg Power: {0:N}", txpRes.AveragePowerMean_dBm);
Console.WriteLine("Composite RMS EVM (dB): {0:N}", modAccResults.CompositeRMSEVMMean_dB);
Console.WriteLine("\n----------Lower Offset Measurements----------\n");
for (int i = 0; i < semResults.LowerOffsetMargin_dB.Length; i++)
{
Console.WriteLine("Offset {0}", i);
Console.WriteLine("Measurement Status :{0}",
semResults.lowerOffsetMeasurementStatus[i]);
Console.WriteLine("Margin (dB) :{0}", semResults.LowerOffsetMargin_dB[i]);
Console.WriteLine("Margin Frequency (Hz) :{0}", semResults.LowerOffsetMarginFrequency_Hz[i]);
Console.WriteLine("Margin Absolute Power (dBm) :{0}\n", semResults.LowerOffsetMarginAbsolutePower_dBm[i]);
}
Console.WriteLine("\n----------Upper Offset Measurements----------\n");
for (int i = 0; i < semResults.UpperOffsetMargin_dB.Length; i++)
{
Console.WriteLine("Offset {0}", i);
Console.WriteLine("Measurement Status :{0}", semResults.upperOffsetMeasurementStatus[i]);
Console.WriteLine("Margin (dB) :{0}", semResults.UpperOffsetMargin_dB[i]);
Console.WriteLine("Margin Frequency (Hz) :{0}", semResults.UpperOffsetMarginFrequency_Hz[i]);
Console.WriteLine("Margin Absolute Power (dBm) :{0}\n", semResults.UpperOffsetMarginAbsolutePower_dBm[i]);
}
Console.WriteLine("\n--------------------\n\nPress any key to exit.");
Console.ReadKey();
wlan.Dispose();
instr.Close();
AbortGeneration(nIRfsg);
CloseInstrument(nIRfsg);
}