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单词 Gain margin
释义

Gain margin

英语百科

Bode plot

Figure 1(a): The Bode plot for a first-order (one-pole) highpass filter; the straight-line approximations are labeled
Figure 1(b): The Bode plot for a first-order (one-pole) lowpass filter; the straight-line approximations are labeled

In electrical engineering and control theory, a Bode plot /ˈbdi/ is a graph of the frequency response of a system. It is usually a combination of a Bode magnitude plot, expressing the magnitude (usually in decibels) of the frequency response, and a Bode phase plot, expressing the phase shift. Both quantities are plotted against a horizontal axis proportional to the logarithm of frequency. Given that the decibel is itself a logarithmic scale, the Bode amplitude plot is log–log plot, whereas the Bode phase plot is a lin-log plot.

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更新时间:2025/6/18 22:37:09