Ferromagnetic target detection radius calculation method and system based on inversion estimation

A technology of target detection and calculation method, applied in the direction of design optimization/simulation, etc., to achieve the effect of improving the accuracy and widening the ocean detection range

Pending Publication Date: 2022-04-12
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0024] In view of the defects of the prior art, the purpose of the present invention is to provide a method and system for calculating the detection radius of ferromagnetic targets based on inversion estimation, aiming at solving the disturbance of power frequency electromagnetic waves according to the scale model, and inversion estimation of the corresponding ferromagnetic target. Problems with Magnetic Target Detection Radius

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  • Ferromagnetic target detection radius calculation method and system based on inversion estimation
  • Ferromagnetic target detection radius calculation method and system based on inversion estimation
  • Ferromagnetic target detection radius calculation method and system based on inversion estimation

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[0073] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0074] Such as figure 1 As shown, this embodiment provides a method for calculating the detection radius of a ferromagnetic target based on inversion estimation, which is used to invert and estimate the corresponding Ferromagnetic target detection radius R in ferromagnetic target stationary test or ferromagnetic target moving test includes the following steps:

[0075] (1) Data acquisition steps:

[0076] Respectively obtain the model detection radius r, the ratio p of the ferromagnetic target mass to the scaled model mass, and the potential depth H of the ferromagnetic target 1 , the depth H of...

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Abstract

The invention discloses a ferromagnetic target detection radius calculation method and system based on inversion estimation, and the calculation method comprises a data acquisition step and a ferromagnetic target detection radius calculation step. According to disturbance of a scaling model to power frequency electromagnetic waves, a corresponding ferromagnetic target detection radius is inversely estimated; according to test results of multiple scaling model tests, an air layer and a seawater layer are separated for inversion estimation in combination with static and moving conditions of a scaling model, and a formula for calculating the detection radius of a ferromagnetic target is obtained; the weights of factors such as mass, speed, depth, height and the like in inversion estimation are relatively large, so that the precision of inversion estimation is improved; most of background noise interference can be shielded by power frequency electromagnetic waves; power frequency electromagnetic waves can also be used for signal detection in a far-field region, and the requirement for wide ocean detection range is met; therefore, the method can be used for detecting the ferromagnetic target hidden under the ocean background noise in a long distance and in a large range.

Description

technical field [0001] The invention belongs to the intersection field of non-acoustic underwater detection and multi-dimensional signal processing technology, and more specifically relates to a ferromagnetic target detection radius calculation method and system based on inversion estimation. Background technique [0002] Under the background of the new situation of economic globalization, the global trade is extremely close. The total import and export volume of countries in the world, especially my country, has shown a relatively rapid growth rate. Shipping transportation has been favored by global businessmen for its huge cargo volume and efficient cargo protection. favored by. Therefore, the number of ships built by shipbuilding enterprises and the tonnage of ships are increasing year by year. The safety of ships during navigation has always been the focus of attention. [0003] Ferromagnetic objects such as shipwrecks and war mines are widely studied in marine explorat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG01V3/081G01R33/022
Inventor 张天序张涛张庆辉杨成王嘉伟谭建东
Owner HUAZHONG UNIV OF SCI & TECH
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