SIGNAL PREDISTORTION BY ADDITION OF A CORRECTION TERM DEPENDING ON A PREDEFINED CONSTELLATION SYMBOL, A TRANSMISSION MODEL AND A TARGET CONSTELLATION SYMBOL

A predistortion circuit for countering interference affecting a digital signal during transmission over a transmission link comprises a path of the digital signal between a mapper at a transmitter side and a demapper at a receiver side. The predistortion circuit is arranged for receiving a version o...

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1. Verfasser:	SIMOENS, Frederik
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator	SIMOENS, Frederik
description	A predistortion circuit for countering interference affecting a digital signal during transmission over a transmission link comprises a path of the digital signal between a mapper at a transmitter side and a demapper at a receiver side. The predistortion circuit is arranged for receiving a version of a digital symbol selected from a predefined constellation used for mapping a bit stream, and includes at least one correction stage provided with a correction path arranged for determining a correction term as a function of the output of a model equivalent to the transmission link and a corresponding symbol of a target constellation. The position of the target constellation points is determined using a measure accounting for the transmission link. The predistortion circuit is arranged for adding the correction term to the received version of the digital symbol and outputting the result of adding as an updated version of the digital symbol.
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language	eng ; fre ; ger
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source	esp@cenet
subjects	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title	SIGNAL PREDISTORTION BY ADDITION OF A CORRECTION TERM DEPENDING ON A PREDEFINED CONSTELLATION SYMBOL, A TRANSMISSION MODEL AND A TARGET CONSTELLATION SYMBOL
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