Large-plane iteration method for upward depth conversion of underwater static electric field of deep-sea ship

A technology of large plane and iterative method, applied in the field of feature prediction of underwater electromagnetic field of ships, can solve the problems of small calculation amount, stability, inability to use upward conversion, limited conversion distance, etc., achieving simple algorithm, great engineering significance, and easy implementation. Effect

Inactive Publication Date: 2015-07-08
NAVAL UNIV OF ENG PLA
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Problems solved by technology

The depth conversion method based on the electrical simulation body can be used to solve the above two types of conversion problems, but the conversion process needs to complete complex source parameter inversion, which has poor stability, needs to provide accurate marine environmental parameters, and is in the process of moving from far to near Defects such as rapid decline in accuracy during conversion
The depth conversion method based on the Lagrangian equation, also known as the large-plane conversion method, has a small amount of calculation, high stability, and does not

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  • Large-plane iteration method for upward depth conversion of underwater static electric field of deep-sea ship
  • Large-plane iteration method for upward depth conversion of underwater static electric field of deep-sea ship
  • Large-plane iteration method for upward depth conversion of underwater static electric field of deep-sea ship

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Embodiment Construction

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] In this embodiment, the marine environment is simulated in the laboratory, and the ship model is used to replace the ship in the actual marine environment for measurement and conversion. The ship model is designed and made according to the actual ship according to a certain scale ratio, plus the cathodic protection system. In this embodiment, a ship model is used instead of a ship in an actual marine environment for description.

[0025] In this embodiment, a large-plane iterative method for converting the underwater static electric field of a ship in the deep sea to an upward depth, obtains the electric field distribution of the target plane by measuring the scalar potential on the plane, and the vertical distance between the measurement plane and the ship model, that is, the field source, is greater than the target plane. The vertical distance b...

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Abstract

The invention discloses a large-plane iteration method for upward depth conversion of an underwater static electric field of a deep-sea ship. The electric field distribution of a target plane is acquired by the iteration method according to the scalar potential distribution of a measurement plane. According to the invention, a method suitable for upward depth conversion of an underwater static electric field of a ship in a deep-sea environment is designed by combining a large-plane depth conversion method and the iteration idea. Upward depth conversion of an underwater static electric field of a ship in a deep-sea environment can be realized. Moreover, the algorithm is simple, the stability is high, the conversion accuracy is high, and the conversion range is large.

Description

technical field [0001] The invention belongs to the field of feature prediction of underwater electromagnetic fields of ships, and in particular relates to a depth conversion method for underwater static electric fields of ships, which is suitable for a method for upward depth conversion of static electric fields in deep sea environments. Background technique [0002] When a ship sails in the ocean, due to corrosion and anti-corrosion measures, a static electric field will be generated around it. Research shows that the field has obvious distribution characteristics and has considerable application potential in target detection, positioning, and strike. Due to the special environment and the limitation of technical conditions, the actual measurement of the field can only be carried out in a limited area of ​​a certain depth. The measured values ​​infer the field distribution at other depths. like figure 1 As shown, from the perspective of practical application, there are t...

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Application Information

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IPC IPC(8): G01R29/14
Inventor 陈聪姚陆锋李定国樊洋
Owner NAVAL UNIV OF ENG PLA
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