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Two-Block Model of a Digital Corrector for Radio Tract Linearization with an Analog Square Modulator

  • THEORY AND METHODS OF SIGNAL PROCESSING
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Abstract

A two-block model of a digital corrector is proposed for linearization of an analog radio path with a nonlinear characteristic and frequency-dependent mismatch of the modulator quadrature channels. Using the stochastic gradient method and the recursive least squares method, the problem of identifying each block of a given model on the basis of once measured data is solved. A comparative analysis of systems with digital correction, implemented using two-block and one-block structures, is carried out.

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Authors and Affiliations

  1. Voronezh State University, 394006, Voronezh, Russia

    L. I. Averina & S. S. Lavlinskii

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  1. L. I. Averina
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  2. S. S. Lavlinskii
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Correspondence to S. S. Lavlinskii.

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Averina, L.I., Lavlinskii, S.S. Two-Block Model of a Digital Corrector for Radio Tract Linearization with an Analog Square Modulator. J. Commun. Technol. Electron. 65, 1325–1330 (2020). https://doi.org/10.1134/S1064226920110030

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  • DOI: https://doi.org/10.1134/S1064226920110030

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