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Signal Processing Main
Windowing signals.
Sometimes data contains points which are not physically possible, or not required.
To remove these there are a range of functions. For 2D signals the points can be removed completely from the plots. This uses the jetwindowpoints function available from the simple signal processing 2D signal dialog.
The two parameters control which points are removed, the allowed values are given in the table, and illustrated in the figure below.
| Figure | C1 | C2 |
Points removed |
| a) | (blank) | C2 |
C2 < Z |
| b) | C1 | (blank) |
Z < C1 |
| c) | C1 | C1 < C2 |
Z < C1 and C2 < Z |
| d) | C1 | C2 < C1 |
C1 < Z < C2 |
The last option is useful to remove all points equal to zero to stop numerical errors when dividing one signal by another.
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JETDSP Signal Processing