Best Linear Approximation of Wiener Systems Using Multilevel Signals: Theory and Experiments.
IEEE Transactions on Instrumentation and Measurement（2018）
Abstract
The problem of measuring the best linear approximation (BLA) of a nonlinear system by means of multilevel excitation sequences is analyzed. A comparison between different types of sequences applied at the input of Wiener systems is provided by numerical simulations and by experiments on a practical circuit, including an analog filter and a clipping nonlinearity. The performance of the sequences is...
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Key words
Linear systems,Harmonic analysis,Nonlinear systems,Distortion measurement,Numerical simulation,Random sequences,Gaussian noise
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