Layer counting method of hard target penetration fuze based on geomagnetic signal detection

Kaishi Jiang; Zichen Liu; Zhengyu He; Changsheng Li

doi:10.1117/12.2671823

28 February 2023 Layer counting method of hard target penetration fuze based on geomagnetic signal detection

Kaishi Jiang, Zichen Liu, Zhengyu He, Changsheng Li

Proceedings Volume 12596, International Conference on Mechatronics Engineering and Artificial Intelligence (MEAI 2022); 125961G (2023) https://doi.org/10.1117/12.2671823
Event: International Conference on Mechatronics Engineering and Artificial Intelligence (MEAI 2022), 2022, Changsha, China

Abstract

Hard target penetration weapon is a trump card weapon for attacking multi-layered structural targets such as underground fortifications and command posts. The key to achieve the efficient damage to targets is the precise layer counting of fuse penetration process. Considering the oscillation aliasing and identifying difficulty in the traditional overload layer counting, a method of penetration layer counting based on the geomagnetic characteristic signal is proposed. During the warhead penetration of the reinforced concrete multilayer structure such as multi-story buildings, due to the additional magnetic field generated by magnetized ferromagnets in the geomagnetic field, the magnetic induction intensity measured by the sensor will change with its position related to the floors, so the layer can be counted by detecting the layer penetrating signal. The multi-layer target plate and warhead models are established, and the principle of penetration process, signal characteristics and layer counting strategy under the multi-parameter condition are analyzed through the COMSOL, a finite element analysis software. The purpose of this paper is to break through the large error and identifying difficulty of characteristic signals in the traditional layer counting method with accelerometer, and to provide theoretical reference for the design and damage efficiency improvement of penetration weapons.

Citation Download Citation

Kaishi Jiang, Zichen Liu, Zhengyu He, and Changsheng Li "Layer counting method of hard target penetration fuze based on geomagnetic signal detection", Proc. SPIE 12596, International Conference on Mechatronics Engineering and Artificial Intelligence (MEAI 2022), 125961G (28 February 2023); https://doi.org/10.1117/12.2671823

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KEYWORDS

Magnetism

Sensors

Signal processing

Signal detection

Target detection

Magnetic sensors

Weapons

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