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单词 describing function
释义 describing function
[di`skrīb·iŋ ´fǝŋk·shǝn]
CONTROL SYSTEMS
A function used to represent a nonlinear transfer function by an approximately equivalent linear transfer function; it is the ratio of the phasor representing the fundamental component of the output of the nonlinearity, determined by Fourier analysis, to the phasor representing a sinusoidal input signal.
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