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词汇 Hann window
分类 英语词汇 英语翻译词典
释义

Hann window

英语百科

Hann function

（重定向自Hann window）
Hann function (left), and its frequency response (right)

The Hann function, named after the Austrian meteorologist Julius von Hann, is a discrete window function given by

w(n)= \frac{1}{2}\; \left(1 - \cos \left ( \frac{2 \pi n}{N-1} \right) \right)

or

w(n)= \sin^2 \left ( \frac{ \pi n}{N-1} \right)

or, in terms of the haversine function,

w(n)=\operatorname{hav}\left(\frac {2 \pi n} {N-1} \right).
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