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A method and apparatus for strong filtering compensation

A strong filtering and one-way technology, which is applied in the field of high-speed data transmission and communication, can solve the problem that the strong filtering effect has little impact on transmission performance

Active Publication Date: 2015-11-04
SANECHIPS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the industry adopts the filtering method to solve the chromatic dispersion, and adopts the constant modulus algorithm to solve the polarization film dispersion, but the strong filtering effect has little influence on the transmission performance in the 10G, 40G and other stages, so no effective solution has been adopted in the equipment

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  • A method and apparatus for strong filtering compensation
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  • A method and apparatus for strong filtering compensation

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Embodiment Construction

[0051] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0052] The technical solution of the embodiment of the present invention solves the strong filter effect through three major steps: delay and addition to solve the influence of high-frequency noise; optimal path selection to find the correct path with the highest probability at each step; compensation result judgment output, comprehensively consider the time period The correct path with the highest probability determines the final correct path.

[0053] figure 1 It is a schematic flow chart of a method for strong filter compensation in an embodiment of the present inventi...

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Abstract

The invention discloses a method and apparatus for strong filtering compensation. The method comprises steps of filtering high frequency noises through utilization of time-delay addition; determining a correct path among one or more interference item paths; carrying out comprehensive analysis on the correct path determined by each data input in a preset time segment; regarding the correct path which has the highest frequency of occurrence as the final correct path; and ouputing data in the final correct path.

Description

technical field [0001] The invention relates to high-speed data transmission communication technology, in particular to a method and device for strong filter compensation in wired dense wavelength division multiplexing (WDM, Dense Wavelength Division Multiplexing) transmission. Background technique [0002] In the development of transmission technology, optical fiber has proved to be an indispensable medium. How to use the least amount of optical fiber to transmit the most abundant information, out of this exploration, the development of optical transmission has basically gone through the following stages: space division multiplexing stage (SDM, Space Division Multiplexing), time division multiplexing stage (TDM, Time Division Multiplexing) and WDM. [0003] In the stage of space division multiplexing, the expansion of the system can only be done by laying new optical cables or adding new equipment. In this way, the time and cost will increase exponentially during the expa...

Claims

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Application Information

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IPC IPC(8): H04B10/2507H04J14/02
CPCH04B10/2507G02F1/353H04J14/02G02B6/2861
Inventor 付华杰古艳涛
Owner SANECHIPS TECH CO LTD