Signal Processing Toolbox |
 |
Opening the Spectrum Viewer
To open the Spectrum Viewer and create a PSD estimate from SPTool:
- Select a signal from the Signal list box in SPTool.
- Press the Create button in the Spectra list.
- Press the Apply button in the Spectrum Viewer.
To open the Spectrum Viewer with a PSD estimate already listed in SPTool:
- Select a PSD estimate from the Spectra list box in SPTool.
- Press the View button in the Spectra list.
For example:
- Select
mtlb
in the default Signals list in SPTool.
- Press the Create button in SPTool to open the Spectrum Viewer.
- Press the Apply button in the Spectrum Viewer to plot the spectrum.

The Spectrum Viewer has the following components:
- A signal identification region that provides information about the signal whose power spectral density estimate is displayed
- A Parameters region for modifying the PSD parameters
- A display region for analyzing spectra and an Options menu for modifying display characteristics
- Spectrum management controls
- Inherit from menu to inherit PSD specifications from another PSD object listed in the menu
- Revert button to revert to the named PSD's original specifications
- Apply button for creating or updating PSD estimates
- A toolbar with buttons for convenient access to frequently used functions
Icon
|
Description
|

|
Print and print preview
|

|
Zoom the signal in and out
|

|
Select one of several loaded signals
|

|
Set the display color and line style of a signal
|

|
Toggle the markers on and off
|

|
Set marker types
|

|
Turn on the What's This help
|
| Spectrum Viewer | | Filtering and Analysis of Noise |  |
© 1994-2005 The MathWorks, Inc.