Underwater four-quadrant dual-beam circumferential scanning laser fuze using nonlinear adaptive backscatter filter based on pauseable SAF-LMS algorithm

作     者：Guangbo Xu Bingting Zha Hailu Yuan Zhen Zheng He Zhang Guangbo Xu;Bingting Zha;Hailu Yuan;Zhen Zheng;He Zhang

作者机构：Ministerial Key Laboratory of ZNDYNanjing University of Science and TechnologyNanjing 210094China Science and Technology on Electromechanical Dynamic Control LaboratoryBeijing 100081China Shanghai Radio Equipment Research InstituteShanghai 201109China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2024年第37卷第7期

页      面：1-13页

核心收录：

学科分类：0806[工学-冶金工程] 0817[工学-化学工程与技术] 082601[工学-武器系统与运用工程] 08[工学] 0826[工学-兵器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the 2021 Open Project Fund of Science and Technology on Electromechanical Dynamic Control Laboratory,grant number 212-C-J-F-QT-2022-0020 China Postdoctoral Science Foundation,grant number 2021M701713 Postgraduate Research&Practice Innovation Program of Jiangsu Province,grant number KYCX23_0511 the Jiangsu Funding Program for Excellent Postdoctoral Talent,grant number 20220ZB245 

主　　题：Laser fuze Underwater laser detection Backscatter adaptive filter Spline least mean square algorithm Nonlinear filtering algorithm 

摘      要：The phenomenon of a target echo peak overlapping with the backscattered echo peak significantly undermines the detection range and precision of underwater laser *** overcome this issue,we propose a four-quadrant dual-beam circumferential scanning laser fuze to distinguish various interference signals and provide more real-time data for the backscatter filtering *** enhances the algorithm loading capability of the *** order to address the problem of insufficient filtering capacity in existing linear backscatter filtering algorithms,we develop a nonlinear backscattering adaptive filter based on the spline adaptive filter least mean square(SAF-LMS)*** also designed an algorithm pause module to retain the original trend of the target echo peak,improving the time discrimination accuracy and anti-interference capability of the ***,experiments are conducted with varying signal-to-noise ratios of the original underwater target echo *** experimental results show that the average signal-to-noise ratio before and after filtering can be improved by more than31 d B,with an increase of up to 76%in extreme detection distance.