NIWLANA_RESULT_OFDM_DEMOD_TIMING_SKEW_AVERAGE
- Updated2023-02-21
- 1 minute(s) read
| Data Type: | float64 |
| Access: | read only |
| Functions: | niWLANA_GetScalarAttributeF64 |
| Description: | Returns the average, across iterations, of the timing skew estimates. This value is expressed in seconds. Timing skew is the difference between the sampling instants of in-phase (I) and quadrature (Q) components of the complex baseband signal. If you set the NIWLANA_STANDARD attribute to NIWLANA_VAL_STANDARD_80211AG_OFDM, NIWLANA_VAL_STANDARD_80211J_OFDM, NIWLANA_VAL_STANDARD_80211P_OFDM or NIWLANA_VAL_STANDARD_80211G_DSSS_OFDM, you must use an empty string as the active channel string format to query this attribute. If you set the NIWLANA_STANDARD attribute to NIWLANA_VAL_STANDARD_80211N_MIMO_OFDM or NIWLANA_VAL_STANDARD_80211AH_MIMO_OFDM, you must use 'channelx' as the active channel string format to query this attribute. If you set the NIWLANA_STANDARD attribute to NIWLANA_VAL_STANDARD_80211AC_MIMO_OFDM, NIWLANA_VAL_STANDARD_80211AF_MIMO_OFDM or NIWLANA_VAL_STANDARD_80211AX_MIMO_OFDM, you must use '[segmentx/]channely' as the active channel string format to query this attribute. 'segment0/' is optional if the NIWLANA_NUMBER_OF_SEGMENTS attribute is set to 1. Note1: The result of this attribute is invalid if you set the NIWLANA_OFDM_DEMOD_COMBINED_SIGNAL_DEMODULATION_ENABLED attribute to NIWLANA_VAL_TRUE. Note2: If the magnitude of the carrier or the sample clock frequency offset is greater than 25 ppm, the estimates of these impairments may be inaccurate. Refer to the Configuring Active Channels (LabWindows/CVI) topic for more information about configuring active channels. |