Device for linearising a power amplifier of a communication system by digital predistortion

Device for linearising a power amplifier of a communication system by digital predistortion

The invention relates to a device for linearising a power amplifier by employing digital predistortion, comprising: a digital predistortion module, configured to infer a polar domain predistortion to be applied to a signal, and comprising a first neural network and a second neural network respective...

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1. Verfasser: Commissariat à l'énergie atomique et aux énergies alternatives
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creator Commissariat à l'énergie atomique et aux énergies alternatives
description The invention relates to a device for linearising a power amplifier by employing digital predistortion, comprising: a digital predistortion module, configured to infer a polar domain predistortion to be applied to a signal, and comprising a first neural network and a second neural network respectively configured to correct amplitude and phase distortion produced by the amplifier; an optimisation module of each of said neural networks configured to implement meta-learning, using: a meta-initialisation providing a prior initialisation of the initial weights of each of said neural networks; a meta-matching of the initial weights into optimal weights of each of said neural networks.
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an optimisation module of each of said neural networks configured to implement meta-learning, using: a meta-initialisation providing a prior initialisation of the initial weights of each of said neural networks; a meta-matching of the initial weights into optimal weights of each of said neural networks.</abstract><oa>free_for_read</oa></addata></record>
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title Device for linearising a power amplifier of a communication system by digital predistortion
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