Dictionary:Hanning function

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(han’ ∂ng) A function used to shape the cutoff of a window in data processing to avoid undesirable effects of sharp truncation:

FIG. W-12. Windows in the time and frequency domains. (a) Window shapes in time-domain. (b) Spectral shapes. The effective width of the boxcar is greater than that for the other window shapes and hence the central lobe is sharper.

Named after Julius von Hann (1839-1921), Austrian meteorologist. Slightly different from Hamming function (q.v.).

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Hanning function
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