wvtool() - Signal Processing

wvtool(WindowVector) opens
the Window Visualization Tool (WVTool) with time and frequency domain
plots of the window vector specified in WindowVector. WindowVector must
be a real-valued row or column vector. By default, the frequency domain
plot is the magnitude squared of the Fourier transform of the window
vector in decibels (dB). You can generate window vectors for a number
of common window functions using the Signal Processing Toolbox™ software.
See window for a list of supported
window functions.wvtool(WindowVector1,...,WindowVectorN) opens
WVTool with time and frequency domain plots of the window vectors
specified in WindowVector1, …, WindowVectorN.H = wvtool(...) returns
the 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.WVTool MenusIn addition to the usual menus items, wvtool contains
these wvtool-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 (available only on Windows
platforms).Copy options — Displays
the Preferences dialog box (available only on Windows platforms). 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.Analysis
Parameters — Controls the response plot parameters,
including number of points, range, x- and y-axis
units, sampling frequency, and normalized magnitude. You can also access the Analysis Parameters by right-clicking
the x-axis label of a plot in the Window Viewer
panel.Insert menu:You use the Insert menu to add labels,
titles, arrows, lines, text, and axes to your plots.Tools menu: Edit Plot — Turns
on plot editing modeZoom In — Zooms
in along both x- and y-axes.Zoom X — Zooms in
along the x-axis only. Drag the mouse in the x direction
to select the zoom area.Zoom Y — Zooms in
along the y-axis only. Drag the mouse in the y direction
to select the zoom area.Full View — Returns
to full view.

Syntax

wvtool(WindowVector)wvtool(WindowVector1,...,WindowVectorN)H = wvtool(...)

Example

Display and Compare WindowsOpen This Example
Use wvtool to display and compare 64-point Hamming, Hann, and Gaussian windows.
wvtool(hamming(64),hann(64),gausswin(64))

Compare 128-point Kaiser windows with different values of 
.wvtool(kaiser(128,1.5),kaiser(128,4.5))

Output / Return Value

Limitations

Alternatives / See Also

Reference