Generates a 4 term
GBLACKMANHARRIS(N, spacing, "sym")
N 
 
An integer, the number of points to generate. 

spacing 
 
A real, the spacing (delta x) between points. 

"sym" 
 
Optional. A string, the symmetry flag.

A series.
W1: gblackmanharris(100, .01)
generates a 100point symmetric
where n is the n^{th} point (1 <= n <= N) and N is 100, the number of points. The spacing between samples is set to 0.01.
W2: gblackmanharris(100, 0.01, "periodic")
Creates a 100 point periodic
where n is the n^{th} point (1 <= n <= N) and N is the number of points to generate. The spacing between samples is set to 0.01.
The "sym" flag controls the window symmetry as follows:
"Symmetric" sets the last point to be the same value as the first point. For an N point symmetric window, a N1 point periodic window is effectively created and the N^{th} point is set to the same value as the first point.
"Periodic" or "iso" creates a periodic window function useful in spectrum analysis applications. "Periodic" or "iso" conforms to the ISO 184311 standard for windowing functions.
The Hamming, Hanning, Flattop and Blackman windows are part of the family of cosine window functions. The ISO 184311 standard periodic form of these windowing functions are defined by:
where K is the number of window coefficients and N is the length of the window. The symmetric form of the window can be constructed by setting N to N1.
For the
Use the BLACKMANHARRIS function command to automatically create and multiply a
blackmanharris(W1)
multiplies Window 1 with a
See GBLACKMAN to generate a 3 term Blackman window.
Blackman,