Data processing method and device based on distributed fiber sensing system

A distributed optical fiber and sensing system technology, which is applied in the direction of using optical devices to transmit sensing components and reduce undesired effects, can solve the problems of complex parameter setting of denoising algorithm and difficult calculation, and reduce the amount of calculation. , the effect of improving the signal-to-noise ratio

Active Publication Date: 2017-02-22
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

However, the parameter setting of the denoising algorithm that is currently applied to the distributed optical fiber sensing technology and can improve the signal-to-noise ratio of the demodulated signal output by the distributed optical fiber sensing system is complex and difficult to calculate.

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  • Data processing method and device based on distributed fiber sensing system
  • Data processing method and device based on distributed fiber sensing system
  • Data processing method and device based on distributed fiber sensing system

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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0020] It should be noted that like numerals and let...

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Abstract

The invention provides a data processing method and device based on a distributed fiber sensing system, and belongs to the technical field of data processing. The data processing method comprises the steps: obtaining original data, and enabling the original data to be converted into a two-dimensional graph according to a preset rule; obtaining the noise standard deviation of the two-dimensional graph; obtaining the gray scale standard deviation of the two-dimensional graph according to the noise standard deviation; carrying out the filtering of the two-dimensional graph based on a two-dimensional bilateral filtering algorithm, and obtaining the two-dimensional graph after noise filtering, wherein the two-dimensional bilateral filtering algorithm comprises the gray scale standard deviation and a preset distance weight. Compared with the prior art, the method and device provided by the invention effectively improve the signal to noise ratio of the original data, reduce the calculation burden, and are simpler and more practical.

Description

technical field [0001] The invention relates to the technical field of distributed optical fiber sensing, in particular to a data processing method and device based on a distributed optical fiber sensing system. Background technique [0002] In recent years, with the rapid development of oil and gas pipelines, high-speed rail, and large buildings, their safety has attracted more and more attention from all walks of life. Due to its many advantages, distributed optical fiber sensing technology has become a key technology for external information perception in long-distance and harsh environments. However, the low signal-to-noise ratio is an urgent problem that has always existed in distributed optical fiber sensing technology. In order to solve this problem, many researchers have done a lot of work, mainly including improved methods based on hardware and improved methods based on denoising algorithms. Among them, although the hardware-based improvement method can effectivel...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/353G01D3/028
CPCG01D3/028G01D5/353
Inventor 邵理阳何海军李恒超闫连山潘炜罗斌
Owner SOUTHWEST JIAOTONG UNIV
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