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Volterra-mapping-based behavioral modeling of nonlinear circuits and systems for high frequencies

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2 Author(s)
Wang, Tianhai ; Dept. of Corporate Res. & Design, M/A-COM Inc., Lowell, MA, USA ; Brazil, T.J.

Presents and validates a discrete-time/frequency-domain approach to the problem of Volterra-series-based behavioral modeling for high-frequency systems. The proposed technique is based on the acquisition of samples of the input/output data, both of which are sampled at the Nyquist rate corresponding to the input signal. The method is capable of identifying the time-/frequency-domain Volterra kernels/transfer functions of arbitrary causal time-invariant weakly nonlinear circuits and systems operating at high frequencies subject to essentially a general random or multitone excitation. The validity and efficiency of the proposed modeling approach has been demonstrated by several examples in high-frequency applications and good agreement has been obtained between results calculated using the proposed model and results measured or simulated with commercial simulation tools.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:51 ,  Issue: 5 )