Frequency domain equalizer for optical communications
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United States of America Patent
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Mar 13, 2018
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Mar 14, 2016
filing date -
Mar 14, 2016
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Abstract
A method decodes an optical signal transmitted over an optical channel from a transmitter to a receiver. The receiver receives the transmitted optical signal to produce a digital signal which is filtered in the frequency domain for compensating static effects and/or dynamic effects. The filtering is performed in the frequency domain, while the frequency coefficients of the filter are updated in the time domain by updating at least some of time coefficients of the filter and transforming the time coefficients into the frequency domain.
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