RESPITE: The CASA Toolkit Page: Documentation: Block Library Index:DeltaMask


DeltaMask

The DeltaMask block takes a missing data mask which has been calculated for static features, and generates the corresponding mask for the delta features. The delta mask will mark a delta value as present if the static mask indicates that all the points required to make the delta were present. Whether or not a delta can be said to be present will depend on the size of the regression window that was used when calculating the deltas - the regression window half-size must be supplied with the DELTA_WIN parameter.

  
Figure 9.10: Delta mask construction for a DELTA_WIN value of two.
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\psfig{figure=graphics/delta_win.eps,width=0.5\columnwidth}\end{center}\vspace{-4mm}
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Inputs Meaning Sample 1-D frame $\ge$2-D frame
in1 mask frame No Yes No

Outputs Meaning
out1 mask frame for delta data

Parameters Type Default Meaning
DELTA_WIN Integer 2 Half size of the regression window



Documentation for CTKv1.1.4 - Last modified: Wed Jun 27 16:46:09 BST 2001