Public MustOverride Property SpatialMappingMatrixSelection As SpatialMappingMatrixSelection

public abstract SpatialMappingMatrixSelection SpatialMappingMatrixSelection {get; set;}

public:
abstract property SpatialMappingMatrixSelection SpatialMappingMatrixSelection {
   SpatialMappingMatrixSelection get();
   void set (    SpatialMappingMatrixSelection value);
}

Property Value

This matrix is sometimes called "Q" in the IEEE 802.11n/ac standards. This property lets you specify what type of matrix is used by the transmitter. A value of SpatialMappingMatrixSelection.DirectMap means that an identity matrix is used, so each transmit antenna transmits a single space-time stream.

A value of SpatialMappingMatrixSelection.Fourier means that a Fourier matrix is used. This mixes all space-time streams onto all antennas. For 2 channels, the matrix is [sqrt(2)/2, sqrt(2)/2; sqrt(2)/2, -sqrt(2)/2]. For 3 channels, the matrix is [1/sqrt(3), 1/sqrt(3), 1/sqrt(3); 1/sqrt(3), -0.5/sqrt(3)+j0.5, -0.5/sqrt(3)-j0.5; 1/sqrt(3), -0.5/sqrt(3)-j0.5, -0.5/sqrt(3)+j0.5]. For 4 channels, the matrix is [0.5, 0.5, 0.5, 0.5; 0.5, j0.5, -0.5, -j0.5; 0.5, -0.5, 0.5, -0.5; 0.5, -j0.5, -0.5, j0.5].

A value of SpatialMappingMatrixSelection.Automatic means that the analyzer will attempt to auto-detect the spatial mapping matrix. However, this is not supported for HT-Greenfield signals, so an identity matrix (direct map) is used for these signals.

Target Platforms: Windows 11 Professional or Enterprise; Windows 10 Professional, Enterprise, or Education (64-bit)

Reference