Design and Modeling of Small-Opening Cascade Synchronous Scanning Underwater Laser Fuzes

doi:10.12382/bgxb.2021.0711

Abstract

Abstract: To overcome the problems of low space utilization and fan-shaped blind areas for existing large-opening underwater synchronous scanning laser fuzes, this paper proposes a design with a small opening and five cascaded scanning units. The new scheme realizes the miniaturization of transparent windows, and improves the overall strength and space utilization of the underwater laser fuze. A multi-parameter optimization design method is proposed to obtain the optimal scanning frequency, pulse frequency, and time duration of each scan for laser fuze detection. An echo energy distribution model for various encounter attitudes between the projectile and target has been established. Thus, both the minimum echo energy and its corresponding encounter attitude can be obtained. Computational simulation has also been performed for the typical encounter state of missiles and targets. The simulation results demonstrate that the fuze design proposed in the article can improve the usable space and eliminate the fan-shaped blind area while meeting the requirements for detecting missiles and targets in various encounter attitudes, providing a reference for the design of underwater synchronous scanning laser fuzes.

Key words: laserfuze, small-openingcascade, synchronousscanning, multi-parameteroptimization, bidirectionalreflectancedistributionfunction

CLC Number:

TJ43⁺9.2

XU Guangbo, ZHA Bingting, ZHENG Zhen, ZHANG He. Design and Modeling of Small-Opening Cascade Synchronous Scanning Underwater Laser Fuzes[J]. Acta Armamentarii, 2022, 43(12): 3162-3171.

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