Article
Formal deduction of a Volterra series model for complex-valued systems
Author/s | Crespo Cadenas, Carlos
Madero Ayora, María José Reina Tosina, Luis Javier Becerra González, Juan Antonio |
Department | Universidad de Sevilla. Departamento de Teoría de la Señal y Comunicaciones |
Publication Date | 2017-02 |
Deposit Date | 2022-02-11 |
Published in |
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Abstract | 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 ... 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 representation can also be considered as a generalization of the widely linear transformation to incorporate the description of nonlinear systems. The complete structure is pruned with the assistance of a compressive-sensing algorithm in order to reduce the number of parameters. To illustrate this approach, it has been experimentally implemented to model a transmitter for OFDM signals, which includes an I/Q modulator and a power amplifier. |
Project ID. | TEC2014-53103-P |
Citation | Crespo-Cadenas, C., Madero-Ayora, M.J., Reina-Tosina, L.J. y Becerra-González, J.A. (2017). Formal deduction of a Volterra series model for complex-valued systems. Signal Processing, 131, 245-248. |
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