2023
DOI: 10.1109/tcsi.2023.3284224
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High-Accuracy Low-Cost Generalized Complex Pruned Volterra Models for Nonlinear Calibration

Abstract: Nonlinear calibration allows enhancing the performance of analog and radiofrequency circuits by digitally correcting nonlinearities. Often, calibration is performed in the complex baseband domain, and Volterra models are used. These models have hundreds of coefficients, and easily become computationally unfeasible. This is worse in complex Volterra models, because high-order Volterra terms require summing multiple products of the input signal. We propose a generalized complex Volterra model based on one relaxa… Show more

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