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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在數據處理中用來形成一個窗或者門以便消除由於使用箱狀窗而產生的不希望有的截斷效應的函數。

漢明函數(與漢寧函數不同)是

,
,

式中 橫跨窗口從 線性增長至 。對於在窗內n個元素中的第k個元素,

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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