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Identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters

A relaxation frequency, electromagnetic induction technology, used in character and pattern recognition, instruments, biological neural network models, etc., can solve the problems of high false alarm rate in principle of metal clutter, and the inability to reduce metal mine detectors, and achieve improved The effect of recognition accuracy

Pending Publication Date: 2021-04-16
上海微波技术研究所(中国电子科技集团公司第五十研究所)
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Problems solved by technology

[0003] In view of the related technologies mentioned above, the inventor believes that there is a problem of excessively high false alarm rate due to the inability of metal mine detectors to reduce metal clutter. Therefore, it is necessary to propose a technical solution to improve the above technical problems

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  • Identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters
  • Identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters
  • Identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters

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Embodiment Construction

[0048]The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] refer to figure 1 A kind of identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters provided by the present invention include the following steps:

[0050] Step 1: Calculate the relaxation frequency characteristic parameters of the detection object by using the frequency response of the multi-frequency electromagnetic induction coil;

[0051] During electromagnetic induction detection, there is a quantitative relationship between the...

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Abstract

The invention provides an identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters. The identification method comprises the following steps that 1, relaxation frequency characteristic parameters of a detected object are obtained through frequency response calculation of a multi-frequency electromagnetic induction coil; and step 2, the material type of the detected object is identified by using relaxation frequency parameters in combination with a machine learning algorithm. The identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters provided by the invention solve the problem that an electromagnetic induction mine detector in the prior art is difficult to accurately detect low metal mine, and reduces the false alarm probability of the mine detector to weakly magnetic impurities at the same time.

Description

technical field [0001] The invention relates to the technical field of multi-frequency electromagnetic induction detection, in particular to an identification method and system based on multi-frequency electromagnetic induction and relaxation frequency parameters. Background technique [0002] The mine-burying environment is complex and changeable, and modern warfare requires increasing accuracy and efficiency of landmine detection. At present, landmine detection is still a very difficult and challenging task. The research focus of landmine detection technology should shift from detecting the metal content in landmines to extracting and detecting effective features of landmines. What needs to be improved is not only the metal detection sensitivity, but more importantly, the recognition sensitivity performance of landmine features. Due to the difference in mine types and buried depths, coupled with the influence of soil type, soil structure, humidity, temperature and surface ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H11/136G06K9/00G06N3/04
Inventor 瞿诗华姜和俊罗朝鹏雷杰吴美武
Owner 上海微波技术研究所(中国电子科技集团公司第五十研究所)
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