Methods and systems for novel infinite impulse response filtering system to allow DC using a complex input signal having a real and imaginary part of the complex input signal Y, and yi to produce a real part of a dispersion-compensated signal X,. The system includes a first filtering circuit for filtering the real part of the input signal y, to produce a filtered real signal wl, a second filtering circuit for filtering and time reversing the imaginary part of an input signal yi to produce a filtered imaginary signal, and a first output summing device for summing the real and the imaginary filtered signal to produce the real part of a dispersion compensated signal X,. In an embodiment the filtering is accomplished with time reversing devices and real coefficient infinite impulse filters. In another embodiment, the filtering is accomplished with complex-coefficient infinite impulse filters.
US 8,103,711 B1
Application Serial Number
Assignee at Issuance
College of Optics and Photonics
Assignee at Filing
Nonprovisional Application Record
Li, Guifang and Goldfarb, Gilad, "Dispersion Compensation Using Digital Infinite Impulse Response Filtering" (2012). UCF Patents. 682.