bartlett_hann_window takes as arguments a real vector v of length n and optionally an interval n1 .. n2 (with default values n1=0 and n2=n−1 ), and returns the elementwise product of the vector [vn1,…,vn2] and the vector w of length N=n2−n1+1 defined by
wk=a0+a1 | ⎪ ⎪ ⎪ ⎪ |
| − |
| ⎪ ⎪ ⎪ ⎪ | −a2 cos | ⎛ ⎜ ⎜ ⎝ |
| ⎞ ⎟ ⎟ ⎠ |
for k=0,1,…,N−1 , where a0=0.62 , a1=0.48 and a2=0.38 . For example, input :
followed by scatterplot(L).