RFmx Demod DotNET

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RFmxDemodMXDDemodResults.FetchOffsetEvm Method

  • Updated2024-07-17
  • 2 minute(s) read
RFmxDemodMXDDemodResults.FetchOffsetEvm Method

RFmxDemodMXDDemodResultsFetchOffsetEvm Method

Fetches the offset error vector magnitude (EVM).

Namespace: NationalInstruments.RFmx.DemodMX
Assembly: NationalInstruments.RFmx.DemodMX.Fx40 (in NationalInstruments.RFmx.DemodMX.Fx40.dll) Version: 24.5.0.49286 (24.5.0.49286)

Syntax

public int FetchOffsetEvm(
	string selectorString,
	double timeout,
	out double meanRmsOffsetEvm,
	out double maximumRmsOffsetEvm,
	out double maximumPeakOffsetEvm,
	out double meanPeakOffsetEvm
)
Public Function FetchOffsetEvm ( 
	selectorString As String,
	timeout As Double,
	<OutAttribute> ByRef meanRmsOffsetEvm As Double,
	<OutAttribute> ByRef maximumRmsOffsetEvm As Double,
	<OutAttribute> ByRef maximumPeakOffsetEvm As Double,
	<OutAttribute> ByRef meanPeakOffsetEvm As Double
) As Integer

Parameters

selectorString  String
Specifies the result name. Example: "", "result::r1". You can use the BuildResultString(String) method to build the selectorString.
timeout  Double
Specifies the time, in seconds, for which the method waits for the measurement to complete. A value of -1 specifies that the method waits until the measurement is complete.
meanRmsOffsetEvm  Double
Upon return, contains the mean of the RMS EVM, measured per acquisition, after removing the offset between the I and Q channels of offset quadrature PSK (OQPSK) demodulated signal.
maximumRmsOffsetEvm  Double
Upon return, contains the maximum of the RMS EVM, measured per acquisition, after removing the offset between the I and Q channels of OQPSK demodulated signal.
maximumPeakOffsetEvm  Double
Upon return, contains the maximum of the peak EVM, measured per acquisition, after removing the offset between the I and Q channels of OQPSK demodulated signal.
meanPeakOffsetEvm  Double
Upon return, contains the mean of the peak EVM, measured per acquisition, after removing the offset between the I and Q channels of OQPSK demodulated signal.

Return Value

Int32
Returns the status code of this method. The status code either indicates success or describes a warning condition.

Remarks

This method maps to the RFmxDemod_DDemodFetchOffsetEVM() function in C.

See Also

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