南京理工大学学报（自然科学版）2026，Vol.50Issue(3)：334-345,12.DOI:10.14177/j.cnki.32-1397n.2026.50.03.010
激光引信低空海面探测回波特性研究
Research on the low-altitude sea surface detection echo characteristics of laser fuze
摘要
Abstract
To address the issues of false alarms and premature detonation in laser fuze caused by interference from sea surface scattering echoes during ultra-low-altitude flight skimming the sea surface,a three-dimensional sea surface model was constructed based on an improved JONSWAP spectrum and a small amplitude theoretical model.A sea surface scattering model for laser fuze was established,and the effects of different sea states,pulse widths,incident angles,and beam divergence angles on the sea surface echoes of laser fuze were analyzed through simulation.Simulation results indicate that,after optimization,the three-dimensional sea surface model demonstrates improved performance in simulating the relative height variations and normalized energy distribution of rough sea surfaces.Comparison with published experimental data shows that the maximum absolute errors are reduced by 3.361 3%and 5.522 5%,respectively;under wide-field-of-view detection,the power of the sea surface scattering echoes received by the laser fuze increases as sea surface wind speed increases,the laser beam incidence angle decreases,and the laser pulse width increases;under narrow-field-of-view detection,the sea surface scattering echo exhibits a discrete distribution,and the critical value of beam divergence angle at which the echo signal distribution transitions from discrete to continuous is about 15°.This research provides theoretical support for the design of laser fuze resistant to sea clutter interference.关键词
激光引信/海面建模/海面散射模拟/海面回波特性Key words
laser fuze/sea surface modeling/sea surface scattering simulation/sea surface echo characteristics分类
军事科技引用本文复制引用
何芮,查冰婷,谭钰然,岳强,周照恒..激光引信低空海面探测回波特性研究[J].南京理工大学学报（自然科学版）,2026,50(3):334-345,12.基金项目
国家自然科学基金(52201399) （52201399）
中央高校基本科研业务费专项资金(30924010501) （30924010501）
中国石油天然气股份有限公司科技项目(2023YQX10603) （2023YQX10603）
