Monitoring apparatus and method for an optical signal-to-noise ratio and receiver
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United States of America Patent
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Jan 16, 2018
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N/A
app pub date -
Jan 28, 2016
filing date -
Feb 10, 2015
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Abstract
A monitoring apparatus and method for an optical signal-to-noise ratio and a receiver, where the apparatus includes: a processing unit configured to perform nonlinear processing on a pilot signal in received signals, or on a pilot signal in received signals and data signals in a predefined range neighboring the pilot signal; and a calculating unit configured to calculate an optical signal-to-noise ratio of the received signals according to a result of the nonlinear processing. Complexity of calculation may be lowered and accuracy of calculation of an optical signal-to-noise ratio may be improved, thereby efficiently improving the performance of the system.
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