Specifies the interpolation type and/or smoothing type used on the channel estimates.

The interpolation is applied only for 802.11ax, 802.11be, and 802.11bn signals when the LTF Size is 2x and 1x.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals.

The default value is Linear.

Remarks

The following table lists the characteristics of this property.

Short Name OFDMModAcc Ch Estimation Interpolation Type
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes
Linear 0

Linear interpolation is performed on reference channel estimates across subcarriers.

Triangular Smoothing 1

Channel estimates are smoothed using a triangular weighted moving average window across subcarriers.

Wiener Filter 2

Wiener filter is used for interpolation and smoothing on reference channel estimates across subcarriers.