Approximate describing function for double-valued nonlinearities |
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| Authors: | McBride LE |
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| Affiliation: | Princeton University, Department of Electrical Engineering, Princeton, USA; |
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| Abstract: | An approximate method for determining the describing function of a smooth double-valued nonlinearity is derived; the formula requires the values of the nonlinear function at only three input levels for symmetric nonlinear devices. The result is exact for third-order polynomials and should be sufficiently accurate for most practical problems. |
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