| Signal Processing Toolbox |
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Making Signal Measurements with Markers
You can use the markers on the Signal Browser or the Spectrum Viewer to make measurements on either of the following:
- A signal in the Signal Browser
- A power spectral density plotted in the Spectrum Viewer
The following marker buttons are included
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Icon
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Description
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Toggle markers on/off
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Vertical markers
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Horizontal markers
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Vertical markers with tracking
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Vertical markers with tracking and slope
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Display peaks (local maxima)
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Display valleys (local minima)
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To make a measurement:
- Select a line to measure (or play, if you are in the Signal Browser).
- Select one of the marker buttons to apply a marker to the displayed signal.
- Position a marker in the main display area by grabbing it with your mouse and dragging:
- Select a marker setting. If you choose the Vertical, Track, or Slope
buttons, you can drag a marker to the right or left. If you choose the
Horizontal button, you can drag a marker up or down.
- Move the mouse over the marker (1 or 2) that you want to drag.
- Drag the marker to where you want it on the signal.
- As you drag a marker, the bottom of the Signal Browser shows the current position of both markers. Depending on which marker setting you select, some or all of the following fields are displayed--x1, y1, x2, y2, dx, dy, m. These fields are also displayed when you print from the Signal Browser, unless you suppress them.
You can also position a marker by typing its x1 and x2 or y1 and y2 values in the region at the bottom.
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is displayed when your mouse passes over a marker.