Minimum 4-term Blackman-Harris window
w = blackmanharris(N)
w = blackmanharris(N,SFLAG)
w = blackmanharris(
N-point symmetric 4-term Blackman-Harris window
in the column vector
w. The window is minimum
in the sense that its maximum sidelobes are minimized.
w = blackmanharris(N,
SFLAG can be
The default is
'symmetric'. You can find the equations
defining the symmetric and periodic windows in Algorithms.
Create a 32-point symmetric Blackman-Harris window. Display the result using
N = 32; wvtool(blackmanharris(N))
The equation for the symmetric 4-term Blackman-harris window of length N is
The equation for the periodic 4-term Blackman-harris window of length N is
The periodic window is N-periodic.
The following table lists the coefficients:
 Harris, Fredric J. "On the Use of Windows for Harmonic Analysis with the Discrete Fourier Transform." Proceedings of the IEEE®. Vol. 66, January 1978, pp. 51–83.
Usage notes and limitations:
Window length must be a constant. Expressions or variables are allowed if their values do not change.