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词汇 Butterworth filter
分类 英语词汇 英语翻译词典
释义

Butterworth filter

中文百科

巴特沃斯滤波器

一阶巴特沃斯低通滤波器的波特图
二阶巴特沃斯低通滤波器的波特图

巴特沃斯滤波器是一种通频带的频率响应曲线很平坦的信号处理滤波器。它也被称作最大平坦滤波器。这种滤波器最先由英国工程师、物理学家斯替芬·巴特沃斯在1930年发表的论文《滤波器放大器理论研究》中提出的。

英语百科

Butterworth filter 巴特沃斯滤波器

The frequency response plot from Butterworth's 1930 paper.[1]
The Bode plot of a first-order Butterworth low-pass filter
A third-order low-pass filter (Cauer topology). The filter becomes a Butterworth filter with cutoff frequency ωc=1 when (for example) C2=4/3 farad, R4=1 ohm, L1=3/2 henry and L3=1/2 henry.
Gain and group delay of the third-order Butterworth filter with ωc=1

The Butterworth filter is a type of signal processing filter designed to have as flat a frequency response as possible in the passband. It is also referred to as a maximally flat magnitude filter. It was first described in 1930 by the British engineer and physicist Stephen Butterworth in his paper entitled "On the Theory of Filter Amplifiers".
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