Hybrid optical fiber intrusion signal processing method and device

A technology of hybrid optical fiber and processing method, applied in the field of signal processing, can solve the problems of low vibration source identification rate, complex optical fiber intrusion signal, unfavorable technical personnel, etc.

Pending Publication Date: 2021-02-02
魏运
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Problems solved by technology

[0004] In the actual underground infrastructure, there may be pedestrian activities, vehicle movements, or tunnel cracks, groundwater leakage, etc. for a long time at the same time, which makes the collected optical fiber intrusion signals more complex, and the existing methods are used to process mixed optical fiber intrusion signals The obtained vibration source identification rate is low, which is not conducive to technicians to take effective measures in time to prevent harmful intrusions from occurring

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  • Hybrid optical fiber intrusion signal processing method and device
  • Hybrid optical fiber intrusion signal processing method and device
  • Hybrid optical fiber intrusion signal processing method and device

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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0026] In order to process the hybrid optical fiber intrusion signal, improve the identification rate of the vibration source, and facilitate technicians to take effective measures in time to prevent the occurrence of harmful intrusion, the embodiment of the present invention provides a processing method for the hybrid optical fiber intrusion signal, as figure 1 As shown, the method may include:

[0027] Step 101, obtaining a hybrid optical fiber intrusion signal;

[0028] Step 102. Establish a pure intrusion signal feature subspace according to the mixed optical fib...

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Abstract

The invention discloses a hybrid optical fiber intrusion signal processing method and device. The method comprises the following steps: acquiring the hybrid optical fiber intrusion signal; establishing a pure intrusion signal characteristic subspace according to the hybrid optical fiber intrusion signal; obtaining projection data corresponding to the hybrid optical fiber intrusion signal accordingto the pure intrusion signal feature subspace; determining feature space volume data and a covariance matrix corresponding to the hybrid optical fiber intrusion signal according to the projection data; and carrying out hybrid optical fiber intrusion signal processing according to the characteristic space volume data and the covariance matrix. According to the method, a hybrid optical fiber intrusion signal can be processed, the vibration source identification rate is improved, technicians can take effective measures in time, and harmful intrusion is prevented.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a method and device for processing mixed optical fiber intrusion signals. Background technique [0002] With the rapid development of the global economy, society's demand for energy, especially oil and gas resources, is increasing day by day. In the national energy strategy, the construction and development of oil and gas storage and transportation are related to the overall strategy of providing long-term, stable, economical and safe energy security for national economic construction and social development. Nowadays, underground oil and gas transmission pipelines have become the main artery of energy transportation, and the issue of pipeline safety protection has become increasingly prominent in front of people. Once the pipeline leaks, it is very easy to explode, which not only affects the normal transportation of energy, but also causes huge losses to the lives and ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06F2218/08G06F2218/12Y04S40/20
Inventor 魏运白文飞田青张远
Owner 魏运
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