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Describing function of saturation nonlinearity
Background on Describing Function Analysis
Describing function analysis is a widely known technique to study frequency response of nonlinear systems. It is an extension of linear frequency response analysis. In linear systems, transfer functions depend only on the frequency of the input signal. In nonlinear systems, when a specific class of input signal such as a sinusoidal is applied to a nonlinear element, you can represent the nonlinear element by a function that depend not only on frequency, but also on input amplitude. This function is referred to as a describing function. Describing function analysis has a wide area of applications from frequency response analysis to prediction of limit cycles.
To use sinusoidal-input describing f
matlab
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非线性
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