Electromagnetic Signature Reduction of Ferromagnetic Vessels Using Machine Learning Approach

Modi, Ankita; Kazi, Faruk

doi:10.1109/tmag.2019.2912784

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…The design of the coils and the calculation of the optimal current are two bottlenecks in the design of modern degaussing system 6 . It is necessary to select the best winding combination from multiple windings for specific magnetic abnormal signals in order to minimize the magnetic anomaly signal.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization design method of naval vessels degaussing coils

Zuo

Pan

et al. 2022

Third International Conference on Computer Science and Communication Technology (ICCSCT 2022)

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A naval vessel made of ferromagnetic materials will generate magnetic anomalies under the influence of the geomagnetic field. This situation will affect the safety of the naval vessels, so it is necessary to be minimized. The position and number of degaussing coils in the traditional degaussing system are relatively fixed after the ship is built, so it is difficult to adapt to different magnetic anomalies in different areas. In addition, the traditional degaussing system optimizes the coil current only to minimize the residual magnetic field peak, without considering the magnetic field gradient. Aiming at this situation, this paper proposes a multi-objective optimal design scheme of ship degaussing coil based on high-dimensional variable selection technology and multi-objective solution technology. In this paper, LARS technology is used to reduce the complexity of the problem, and MPSO technology is used to solve the multi-objective optimization problems. Experiments show that this method cannot only rank the importance of degaussing coils, but also effectively reduce naval vessels magnetic abnormal signals, which has practical guiding significance.

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Section: Introductionmentioning

confidence: 99%

Multi-objective optimization design method of naval vessels degaussing coils

Zuo

Pan

et al. 2022

Third International Conference on Computer Science and Communication Technology (ICCSCT 2022)

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“…The magnetic signals of the warship consist of the induced magnetic field caused by the earth's magnetic field during operation [1][2][3], eddy currents by rolling [4], and the permanent magnetization generated during the manufacturing process. Most of the signals are the induced and the permanent magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Novel Deperming Protocols to Reduce Demagnetizing Time and Improve the Performance for the Magnetic Silence of Warships

Lee

Park

2021

Energies

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Magnetic silence of warships is necessary to prevent damage caused by the magnetic mines detecting the magnetic field of the warship. Anhysteretic and Deperm-ME protocols are used to reduce permanent magnetization among magnetic signals. However, they have some disadvantages. Therefore, this paper proposes an effective deperming protocol that is easily controlled and reduces the demagnetization time. A protocol composed of two Anhysteretic protocols is presented using the Preisach model to easily manage and ensure excellent performance. Each stage has its own advantages by considering the Preisach density distribution. In Stage 1, the existing magnetic history is erased, and the demagnetization time is reduced. In Stage 2, the demagnetization performance is improved. The effectiveness of the protocol was verified via simulations using the Preisach model and experiments using a specimen. When the proposed protocol was applied, the results were excellent when applying Anhysteretic and Deperm-ME. In addition, even if the number of magnetic fields was reduced by 4 and 8 in the proposed protocol, the demagnetization result was maintained. Therefore, if the proposed protocol is applied, excellent demagnetization results can be obtained and the time required to perform demagnetization can be reduced, thereby improving the operational capability of the warship.

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