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Mostrando ítems 21-24 de 24
Artículo
Upgrading Behavioral Models for the Design of Digital Predistorters
(MDPI AG, 2021)
This work presents a strategy to upgrade models for power amplifier (PA) behavioral modeling and digital predistortion (DPD). These incomplete structures are the consequence of nonlinear order and memory depth model ...
Artículo
Formal deduction of a Volterra series model for complex-valued systems
(Elsevier, 2017-02)
This paper demonstrates a general model for nonlinear systems with complex-valued inputs and its application to communication systems modeling. Based on Wirtinger calculus and a double Volterra series approach, the proposed ...
Artículo
Experimental study of two-tone intermodulation products in a communications modulator
(Wiley, 2011-01)
This article presents the experimental nonlinear characterization of a quadrature modulator following a two‐tone test approach. The observed intermodulation products show different slopes with respect to the desired carrier ...
Artículo
An Impedance-Based Model for the Evaluation of IM3 in Nonlinear Amplifiers Showing Memory Effects
(Wiley, 2008-03)
A simple model that captures nonlinear memory effects inwideband amplifiers is presented in this work. The model defines anequivalent hypothetical load impedance that explains asymmetries, inmagnitude and phase, in two-tone ...