FetchIQImpairments(string, double, out double, out double, out double)
- Updated2025-10-13
- 1 minute(s) read
Fetches I/Q impairments.
Syntax
Namespace: NationalInstruments.RFmx.DemodMX
public int FetchIQImpairments(string selectorString, double timeout, out double meanIQGainImbalance, out double meanQuadratureSkew, out double meanIQOriginOffset)
Remarks
This method maps to the RFmxDemod_DDemodFetchIQImpairments() function in C.
Parameters
| Name | Type | Description |
|---|---|---|
| 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. |
| meanIQGainImbalance | out double | Upon return, contains the measured ratio of I gain to Q gain, in dB. |
| meanQuadratureSkew | out double | Upon return, contains a measure of I and Q components in the signal that are not perfectly orthogonal. |
| meanIQOriginOffset | out double | Upon return, contains the offset, in dB, from the ideal location of the constellation origin. |
Returns
Returns the status code of this method. The status code either indicates success or describes a warning condition.