Create a 64-point Hamming window. Display the result using
L = 64; wvtool(hamming(L))
Design two Hamming windows:
The first window has N = 64 and is symmetric.
The second window has N = 63 and is periodic.
Display the two windows.
Hs = hamming(64,'symmetric'); Hp = hamming(63,'periodic'); wvt = wvtool(Hs,Hp); legend(wvt.CurrentAxes,'Symmetric','Periodic')
L— Window length
Window length, specified as a positive integer.
sflag— Window sampling
Window sampling method, specified as:
'symmetric' — Use this option when using windows for
'periodic' — This option is useful for spectral
analysis because it enables a windowed signal to have the perfect periodic
extension implicit in the discrete Fourier transform. When
'periodic' is specified, the function computes a
window of length
L + 1 and returns the first
w— Hamming window
Hamming window, returned as a column vector.
The following equation generates the coefficients of a Hamming window:
The window length L = N + 1.
 Oppenheim, Alan V., Ronald W. Schafer, and John R. Buck. Discrete-Time Signal Processing. Upper Saddle River, NJ: Prentice Hall, 1999.