public static void ConfigureOFDMModAcc(RFmxWlanMX wlanSignal, OFDMModAccConfiguration modAccConfig, string selectorString = "") { RFmxWlanMXOfdmModAccAcquisitionLengthMode acMode; if (modAccConfig.AcquisitionLength_s == 0) { acMode = RFmxWlanMXOfdmModAccAcquisitionLengthMode.Auto; } else { acMode = RFmxWlanMXOfdmModAccAcquisitionLengthMode.Manual; } wlanSignal.OfdmModAcc.Configuration.SetMeasurementEnabled(selectorString, true); wlanSignal.OfdmModAcc.Configuration.SetAllTracesEnabled(selectorString, true); wlanSignal.OfdmModAcc.Configuration.ConfigureAcquisitionLength(selectorString, acMode, modAccConfig.AcquisitionLength_s); wlanSignal.OfdmModAcc.Configuration.ConfigureMeasurementLength(selectorString, modAccConfig.MeasurementOffset_sym, modAccConfig.MaximumMeasurementLength_sym); wlanSignal.OfdmModAcc.Configuration.ConfigureOptimizeDynamicRangeForEvm(selectorString, modAccConfig.OptimizeDynamicRangeForEvmEnabled, modAccConfig.OptimizeDynamicRangeForEVMMargin_dB); wlanSignal.OfdmModAcc.Configuration.ConfigureAveraging(selectorString, modAccConfig.AveragingEnabled, modAccConfig.AveragingCount); //Disable the following measurements because SG clocks and LOs are being shared; hence, any measured error would be invalid wlanSignal.OfdmModAcc.Configuration.SetFrequencyErrorEstimationMethod(selectorString, RFmxWlanMXOfdmModAccFrequencyErrorEstimationMethod.Disabled); wlanSignal.OfdmModAcc.Configuration.SetIQGainImbalanceCorrectionEnabled(selectorString, RFmxWlanMXOfdmModAccIQGainImbalanceCorrectionEnabled.False); wlanSignal.OfdmModAcc.Configuration.SetIQQuadratureErrorCorrectionEnabled(selectorString, RFmxWlanMXOfdmModAccIQQuadratureErrorCorrectionEnabled.False); wlanSignal.OfdmModAcc.Configuration.SetIQTimingSkewCorrectionEnabled(selectorString, RFmxWlanMXOfdmModAccIQTimingSkewCorrectionEnabled.False); //The following values are defaults, but called out explicitly for clarity wlanSignal.OfdmModAcc.Configuration.SetEvmUnit(selectorString, RFmxWlanMXOfdmModAccEvmUnit.dB); wlanSignal.OfdmModAcc.Configuration.ConfigureChannelEstimationType(selectorString, RFmxWlanMXOfdmModAccChannelEstimationType.ChannelEstimationReference); wlanSignal.OfdmModAcc.Configuration.SetBurstStartDetectionEnabled(selectorString, RFmxWlanMXOfdmModAccBurstStartDetectionEnabled.False); //Triggering, so no burst detection wlanSignal.OfdmModAcc.Configuration.SetAmplitudeTrackingEnabled(selectorString, RFmxWlanMXOfdmModAccAmplitudeTrackingEnabled.False); wlanSignal.OfdmModAcc.Configuration.SetPhaseTrackingEnabled(selectorString, RFmxWlanMXOfdmModAccPhaseTrackingEnabled.False); wlanSignal.OfdmModAcc.Configuration.SetChannelEstimationSmoothingEnabled(selectorString, RFmxWlanMXOfdmModAccChannelEstimationSmoothingEnabled.False); wlanSignal.OfdmModAcc.Configuration.SetCommonClockSourceEnabled(selectorString, RFmxWlanMXOfdmModAccCommonClockSourceEnabled.True); }
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); }