汉明函数

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This page is a translated version of the page Dictionary:Hamming function and the translation is 100% complete.

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在数据处理中用来形成一个窗或者门以便消除由于使用箱状窗而产生的不希望有的截断效应的函数。

汉明函数(与汉宁函数不同)是

,
,

式中 横跨窗口从 线性增长至 。对于在窗内n个元素中的第k个元素,

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.

以R. W. Hamming命名。

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Hamming function/zh
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