Fetches the coefficients of the polynomials that approximate the AM-to-AM and AM-to-PM responses of the device under test.

Syntax

Namespace: NationalInstruments.RFmx.SpecAnMX

public int FetchCurveFitCoefficients(string selectorString, double timeout, ref float[] amToAMCoefficients, ref float[] amToPMCoefficients)

Remarks

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

Parameters

NameTypeDescription
selectorStringstring

Specifies the result name. Example: "", "result::r1". You can use the BuildResultString(string) method to build the selectorString.

timeoutdouble

Specifies the timeout, in seconds, for fetching the specified measurement. Set this value to an appropriate time longer than expected for fetching the measurement. A value of -1 specifies that the method waits until the measurement is complete.

amToAMCoefficientsref float[]

Upon return, contains the coefficients of the polynomial that approximates the AM-to-AM characteristic of the device under test.

amToPMCoefficientsref float[]

Upon return, contains the coefficients of the polynomial that approximates the AM-to-PM characteristic of the device under test.

Returns

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