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词汇 Sawtooth curve
分类 英语词汇 英语翻译词典
释义

Sawtooth curve

中文百科

锯齿波 Sawtooth wave

(重定向自Sawtooth curve)
大量谐波叠加生成锯齿波的过程动画演示。对于该过程的数学描述,请参阅傅里叶变换。
正弦波、方波、三角波和锯齿波的波形
Una banda de sierra, la del tope en el dominio temporal, y la de abajo en el dominio de frecuencias. La fundamental a 220 Hz (A3).
(gerade und ungerade) Harmonische einer Sägezahnschwingung von 1000 Hz

锯齿波英语:sawtooth wave)是一种非正弦波,由于它具有类似锯子一样的波形,即具有一条直的斜线和一条垂直于横轴的直线的重复结构,它被命名为锯齿波。

锯齿波的傅里叶级数展开为:

x_\mathrm{sawtooth}(t) = \frac {2}{\pi}\sum_{k=1}^{\infty} {(-1)}^{k} \frac {\sin (2\pi kft)}{k}
英语百科

Sawtooth wave 锯齿波

(重定向自Sawtooth curve)
A bandlimited sawtooth wave pictured in the time domain (top) and frequency domain (bottom).  The fundamental is at 220 Hz (A3).
Animation of the additive synthesis of a sawtooth wave with an increasing number of harmonics
Sine, square, triangle, and sawtooth waveforms
(gerade und ungerade) Harmonische einer Sägezahnschwingung von 1000 Hz

The sawtooth wave (or saw wave) is a kind of non-sinusoidal waveform. It is so named based on its resemblance to the teeth of a saw.

The convention is that a sawtooth wave ramps upward and then sharply drops. However, in a "reverse (or inverse) sawtooth wave", the wave ramps downward and then sharply rises. It can also be considered the extreme case of an asymmetric triangle wave.

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