Decision feed forward equalization for intersymbol interference cancelation

A receiver includes a decision feed forward equalization (DFFE) system coupled to a partial response (PR) system. The partial response system generates, based on a digital signal that includes pre-cursor intersymbol interference (ISI) and post-cursor ISI introduced by a communication channel, a dete...

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Bibliographic Details
Main Authors Aziz, Pervez Mirza, Balan, Vishnu, Annampedu, Viswanath
Format Patent
LanguageEnglish
Published 21.03.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A receiver includes a decision feed forward equalization (DFFE) system coupled to a partial response (PR) system. The partial response system generates, based on a digital signal that includes pre-cursor intersymbol interference (ISI) and post-cursor ISI introduced by a communication channel, a detected signal including a set of detected symbol values. The detected signal is equalized to a partial response. The DFFE system includes a PR inverter to generate a set of estimated transmitted symbol values based on the set of detected symbol values and DFFE circuitry to cancel the pre-cursor ISI and the post-cursor ISI from the detected signal using the set of estimated transmitted symbols and a set of tap coefficients to obtain a compensated signal and a set of compensated symbol values.
Bibliography:Application Number: US202117392178