User`s guide

Window Function
5-542
Window Sampling
For the generalized-cosine windows (Blackman, Hamming, and Hann), the
Sampling parameter determines whether the window samples are computed
in a periodic or a symmetric manner. For example, if
Sampling is set to
Symmetric, a Hamming window of length M is computed as
w = hamming(M) % Symmetric (aperiodic) window
If Sampling is set to Periodic, the same window is computed as
w = hamming(M+1) % Periodic (asymmetric) window
w = w(1:M)
Window Type
The available window types are shown in the table below. The Stopband
attenuation in dB
and Beta parameters specify the characteristics of the
Chebyshev and Kaiser windows, respectively, and are only available when
those window designs are selected.
When
Window type is set to User defined, the Window function block
computes the user-defined window specified by the
Window function name
parameter. If the user-defined window requires parameters other than the
window length, select the
Additional parameters for user defined window
check box. The cell array entered in
Window function parameters determines
the values of the additional parameters.
For complete information about the other window functions, consult the Signal
Processing Toolbox documentation.
Window
Type
Description
Bartlett
Computes a Bartlett window.
w = bartlett(M)
Blackman
Computes a Blackman window.
w = blackman(M)