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Communication cable twisting pitch optimization method based on double-target simulated annealing algorithm and non-inferior layering

A simulated annealing algorithm, communication cable technology, applied in the field of communication, can solve problems such as not considering the amount of conductors

Active Publication Date: 2016-02-03
EAST CHINA JIAOTONG UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

And in the design process, usually only the effect of twisting pitch on crosstalk is considered without considering the amount of conductors

Method used

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  • Communication cable twisting pitch optimization method based on double-target simulated annealing algorithm and non-inferior layering
  • Communication cable twisting pitch optimization method based on double-target simulated annealing algorithm and non-inferior layering
  • Communication cable twisting pitch optimization method based on double-target simulated annealing algorithm and non-inferior layering

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Experimental program
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Effect test

Embodiment 1

[0064] logarithm n A 25 communication cable is an example.

[0065] (1) The design parameters of the communication cable are initialized, and the 25 wire pairs are twisted in three layers of 3+9+13 (as attached image 3 ) arrangement, and the numbers in the figure are line pairs. Select the length of the communication cable as , the diameter of the wire core (i.e. copper core) is , to determine the distance from the center of the pair to the center of the conductor , the equivalent dielectric constant , the relative magnetic permeability ,but:

[0066] (11)

[0067] (12)

[0068] According to the design standard, determine the optimal range of stranding pitch ( ), set the minimum value of near-end crosstalk attenuation ( ).

[0069] (2) Design objective function

[0070] 1) Optimizing objective function 1: Conductor usage. Calculate the amount of conductors according to formula 1, where the stranding coefficient is determined by the stranding pitch.

...

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Abstract

The invention discloses a communication cable stranding pitch optimization method based on a double-target simulated annealing algorithm and non-inferior layering. The method aims at optimizing a stranding pitch of a communication cable, so that the requirements of near-end crosstalk interferences are met while the use amount of conductors of the communication cable is reduced. According to the method provided by the invention, firstly, on the basis of initializing design parameters of the communication cable, two optimization target functions including the use amount of the conductors of the communication cable and near-end crosstalk attenuation are designed; and the double-target simulated annealing algorithm and a non-inferior layering concept are combined to obtain a feasible solution set of the stranding pitch.

Description

Technical field [0001] The invention involves the field of communication technology, which specifically involves a two -target -based simulation annealing algorithm and non -inferior communication cable twisted pitch optimization method. Background technique [0002] With the advent of the information age, the amount of information transmission has increased.As the carrier of information transmission, the demand for communication cables has continued to increase.Communication cables refer to cables for close -range audio communication and long -range high -frequency carrier -wave digital communication and signal transmission. They are one of the five major cable products in China.In the process of transmitting various communication signals, the proximal stringing audio interference is one of the important factors affecting the communication quality of communication cables.In the same communication cable, the twisted pitch of each line of the pairs can be reduced by reasonable sel...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 李鹏刘远王裕华邹添彭嘉潮
Owner EAST CHINA JIAOTONG UNIVERSITY
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