hamming() - Signal Processing

w = hamming(L) returns
an L-point symmetric Hamming window in the column
vector w. L should be a positive
integer. The coefficients of a Hamming window are computed from the
following equation.w(n)=0.54−0.46cos(2πnN),0≤n≤NThe window length is L=N+1.w = hamming(L,'sflag') returns
an L-point Hamming window using the window sampling
specified by 'sflag', which can be either 'periodic' or 'symmetric' (the
default). The 'periodic' flag is useful for DFT/FFT
purposes, such as in spectral analysis.   The DFT/FFT contains an
implicit periodic extension and the periodic flag enables a signal
windowed with a periodic window to have perfect periodic extension.
When 'periodic' is specified, hamming computes
a length L+1 window and returns the first L points.
When using windows for filter design, the 'symmetric' flag
should be used. Note  


If you specify a one-point window (L=1),
the value 1 is returned.

Syntax

w = hamming(L)w = hamming(L,'sflag')

Example

Hamming WindowOpen This Example
Create a 64-point Hamming window. Display the result using wvtool.
L = 64;
wvtool(hamming(L))

Output / Return Value

Limitations

Alternatives / See Also

Reference