Predistortion circuit and method for predistorting a signal
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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Format | Patent |
Language | English |
Published |
15.03.2016
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Subjects | |
Online Access | Get full text |
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Abstract | 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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AbstractList | 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. |
Author | SIMOENS FREDERIK |
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Notes | Application Number: US201414766821 |
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Snippet | A predistortion circuit for countering interference affecting a digital signal during transmission over a transmission link comprises a path of the digital... |
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SubjectTerms | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY JAMMING OF COMMUNICATION SECRET COMMUNICATION TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
Title | Predistortion circuit and method for predistorting a signal |
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