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半峰全宽

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Also known as FWHM, half-width (of a band)

concept in statistics and wave theory

Described at

IUPAC - half-width (H02723)

The IUPAC Compendium of Chemical Terminology

goldbook.iupac.org →

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FWHM
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Article · 中文

半峰全宽(Full width at half maximum,缩写为FWHM),也称作半高全宽、半峰全幅、或半高寬。是指在函数的一个峰当中,前后两个函数值等于峰值一半的点之间的距离。通常在光学、光学通信、中用来描述谱线、辐射通量。如果自变量是时间,通常使用 (full duration at half maximum,缩写为FDHM)这一概念。 它可以用来计算高斯函数的积分。高斯函数的半峰全宽为,其中为標準差。

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