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Dispersion compensation method of electric domain and filter parameter regulator

A filter parameter and dispersion compensation technology, which is applied in the communication field, can solve the problems of long time and long protection switching time, and achieve the effect of fast protection switching

Inactive Publication Date: 2010-11-24
ZTE CORP
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Problems solved by technology

[0003] In a protection switching system, the dispersion of the protection path is likely to be different from that of the working path. Therefore, the coherent receiving system needs to readjust the parameters of the dispersion compensation filter 10 to restore the service correctly. During the parameter adjustment process, it is necessary to judge the current path based on the dispersion feedback information. Whether the dispersion compensation is appropriate, so as to adjust the dispersion filter parameters, the whole process needs to search for several dispersions, which takes a long time, resulting in too long protection switching time

Method used

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  • Dispersion compensation method of electric domain and filter parameter regulator
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  • Dispersion compensation method of electric domain and filter parameter regulator

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Embodiment Construction

[0033] The electrical domain dispersion compensation method and filter parameter adjuster proposed by the present invention perform dispersion compensation according to the preset dispersion compensation value or dispersion compensation list of the protection path when protection switching occurs, and adjust the dispersion of the protection path in a short time , to achieve fast protection switching.

[0034] refer to figure 2 , propose an embodiment of the method for electrical dispersion compensation of the present invention, which is applied to a coherent receiving system, including:

[0035] Step 101, preset the dispersion compensation value or the dispersion compensation list of the protection path of the coherent receiving system;

[0036] Step 102, when it is necessary to adjust the dispersion of the protection path, configure dispersion compensation parameters required for adjusting the dispersion of the protection path according to a preset dispersion compensation v...

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Abstract

The invention discloses a dispersion compensation method of an electric domain and a filter parameter regulator, which are applied to a coherent receiving system. The method comprises the steps of: presetting a dispersion compensation value or a dispersion compensation list of a protective path of a coherent receiving system; and configuring a dispersion compensation parameter required for regulating the dispersion of the protective path according to the preset dispersion compensation value or the dispersion compensation list when the dispersion of the protective path is needed to be regulated. The dispersion compensation method of the electric domain and the filter parameter regulator, which are provided by the invention, realize quick protection switching.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for compensating dispersion in electric domain and a filter parameter adjuster. Background technique [0002] refer to figure 1 , usually the electrical domain dispersion compensator is composed of a dispersion compensation filter 10 , an adaptive filter 20 , a dispersion feedback unit 40 and a filter parameter adjuster 30 . A look-up table of dispersion and corresponding filter parameters is stored in the filter parameter adjuster 30. When the dispersion compensation filter 10 configures specific dispersion compensation filter parameters, after the adaptive filter 20 compensates the residual dispersion and polarization mode dispersion, the dispersion feedback The signal analyzer 40 analyzes the signal to obtain dispersion feedback information. The dispersion feedback information is closely related to the dispersion compensation effect of the signal. By analyzing the dispersio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/18H04B10/08H04B10/69
CPCH04B10/6971
Inventor 沈百林
Owner ZTE CORP
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