摘要
对激光经气泡、水体散射后偏振特征的变化进行理论分析,研究舰船尾流的几何模型和气泡分布规律,提出了一种基于偏振特征的激光尾流探测方法。利用偏振光探测优势对探测器进出入气泡尾流的舷别信息进行分析,对所提出的方法进行了可行性实验研究。实验结果表明:偏振光探测装置可有效地分辨尾流区和非尾流区的散射光回波信号;当激光通过不同尺度、不同密度气泡区域时,探测器接收到的回波信号亦不同,且信号特征有规律可循。该方法能初步对尾流的舷别信息进行甄别,为尾流自导鱼雷探测舰船尾流从而进行目标跟踪提供了依据。
The polarization characteristics of laser after scattering from bubbles and seawater are theoreti- cally analyzed, and the geometric model of ship wake and the distribution law of bubbles are studied. A laser detection method for ship wake based on polarization characteristic is proposed. The allo-informa- tions of bubbles and ship wake are analyzed, and the feasibility experiment of the proposed detection method is conducted. Experimental results show that the polarization detection device can effectively de- tect the scattered echo signals from the ship wake region and non-wake region through the proposed detec- tion method. When the laser passes through the different-scale and density bubble regions, the detectors receive the different echo signals. This shows that the proposed detection method can be used for identif- ying the allo-information of ship wake.
作者
田晶
白光富
江阳
TIAN Jing;BAI Guang-fu;JIANG Yang(School of Physics, Guizhou University, Guiyang 550025, Guizhou, Chin)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2018年第5期969-975,共7页
Acta Armamentarii
基金
国家自然科学基金项目(61650403)
贵州省科技合作计划项目(黔科合LH字[2016]7426号)
贵州省社会发展公关项目(20133125)
贵州省光子科学与技术创新人才团队(20154017)
关键词
激光
尾流
偏振光
气泡
laser
ship wake
polarized light
bubble
