Patent ID: 8953951
Filing Date: 2015-02-10
Classification: H04B

Abstract:
1. A method comprising: determining, with a controller, complex conjugate values of a first portion of a frequency domain representation of a combination of one or more input data streams having chromatic dispersion; pointwise multiplying, with the controller, the complex conjugate values with a second portion of the frequency domain representation of the combination of the one or more input data streams; applying, with the controller, a transform to results of the pointwise multiplication; determining, with the controller, a transform bin value from results of the transform; determining, with the controller, an estimation of the chromatic dispersion from the determined transform bin value; determining, with the controller, filter tap coefficients, based on the determined estimation of the chromatic dispersion, for a chromatic dispersion filter configured to compensate for the chromatic dispersion of the one or more input data streams; and configuring, with the controller, the chromatic dispersion filter in accordance with the determined filter tap coefficients.