Signal Processing Toolbox

wvtool

Open the Window Viewer Tool (WVTool)

Syntax

• wvtool(winname(n))
  wvtool(winname1(n),winname2(n),...winnamem(n))
  h = wvtool(...)
  

Description

wvtool(winname(n)) opens WVTool with the time and frequency domain plots of the n-length window specified in winname, which can be any window in the Signal Processing Toolbox. For a list of valid window names, see the window function. In the wvtool command, do not precede the window name with @.

wvtool(winname1(n),winname2(n),...winnamem(n)) opens WVTool with a time-domain plot and a frequency-domain plot that contain all the windows specified in winname₁,...winname_m. The plots are shown on the same axes so that window characteristics can be compared and contrasted easily. WVTool is useful for displaying, annotating, and printing window responses.

h = wvtool(...) returns the Handle Graphics figure handle h.

Note    A related tool, wintool, is available for designing and analyzing windows.

Note    If you launch WVTool from FDATool, an Add/Replace icon, which controls how new windows are added from FDATool, appears on the toolbar.

WinTool Menus

In addition to the usual menus items, wintool contains these wintool-specific menu commands:

File menu:

• Export--exports the displayed plot(s) to a graphic file.

Edit menu:

• Copy figure--copies the displayed plot(s) to the clipboard.
• Copy options--diplays the Preferences dialog box.
• Figure, Axes, and Current Object Properties--displays the Property Editor.

View menu:

• Time domain--check to show the time domain plot.
• Frequency domain--check to show the frequency domain plot.

  

• Legend--toggles the window name legend on and off. This option is also available with the Legend toolbar button.
• Frequency specifications--controls the sampling frequency. Available units are Normalized (0 to 1), Hz, kHz, MHz, and GHz. If you select any unit except Normalized, you can a frequency value or the name of the MATLAB workspace vector that contains the desired frequency in the Fs field.

  

• You can also access the frequency specifications by right-clicking on the x-axis label of either plot.

Insert menu:

You use the Insert menu to add labels, titles, arrows, lines, text, and axes to your plots.

Examples

Compare Hamming, Hann, and Gaussian windows:

• wvtool(hamming(64),hann(64),gausswin(64))
  
  
  

See Also

fdatool, window, wintool

wintool

xcorr