Hann function

English

Etymology

Named after the Austrian meteorologist Julius von Hann.

Noun

Hann function

(signal processing) A discrete window function, $w(n)={\frac {1}{2}}\;\left(1-\cos \left({\frac {2\pi n}{N-1}}\right)\right)$ , typically used to select a subset of a series of samples in order to perform a Fourier transform or other calculation.

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