niWLANA_GetCurrentIterationOFDMDemodQuadratureSkewPerSubcarrierTrac
- Updated2023-02-21
- 1 minute(s) read
int32 __stdcall niWLANA_GetCurrentIterationOFDMDemodQuadratureSkewPerSubcarrierTrace( niWLANAnalysisSession session, char channelString[], float64 quadratureSkew[], int32 subcarrierIndices[], int32 dataArraySize, int32 *actualArraySize);
Purpose
Returns the quadrature skew per subcarrier number for each iteration when the toolkit processes the acquired burst. To use this function, you must set the NIWLANA_OFDM_DEMOD_ENABLED attribute to NIWLANA_VAL_TRUE and set either the NIWLANA_OFDM_DEMOD_ALL_TRACES_ENABLED attribute or the NIWLANA_OFDM_DEMOD_QUADRATURE_SKEW_PER_SUBCARRIER_TRACE_ENABLED attribute to NIWLANA_VAL_TRUE.
Parameters
| Input | ||
| Name | Type | Description |
| session | niWLANAnalysisSession | Specifies the niWLAN analysis session refnum. |
| channelString | char[] | Specifies the WLAN channel for which you want to fetch the measurement. |
| dataArraySize | int32 | Specifies the number of elements in the data array. |
| Output | ||
| Name | Type | Description |
| quadratureSkew | float64[] | Returns an array of the quadrature skew value at subcarriers whose indices are given by the subcarriers indices sub-parameter. This value is expressed in degrees. |
| subcarrierIndices | int32[] | Returns an array of the indices of the subcarriers. |
| actualArraySize | int32* | Returns the number of elements in the quadratureSkew and subcarrierIndices arrays. If the arrays are not large enough to hold all the samples, the function returns an error and this parameter returns the minimum expected size of the output arrays. |
Return Value
| Name | Type | Description | ||||||||
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an niWLAN function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the niWLANA_GetErrorString function. The general meaning of the status code is as follows:
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