摘要
为了改进鱼雷激光尾流制导方法,在激光多普勒效应的基础上,建立激光探测舰船尾流的理论模型,并设计出差动型光学系统,使探测器接收到的散射光信号产生多普勒频移,有效提高信噪比。仿真结果表明,通过锁相放大技术处理,能检出待测目标多普勒差频信号,并抑制噪声,在水中兵器领域有应用前景。
In order to improve the guidance method for torpedoes, based on laser Doppler effect, a theoretical model is established for detecting the ship wake with laser. A differential optical system is designed to produce Doppler shift frequency in scattering signal on sensor,which can improve the signal-to-noise ratio efficiently. The simulation results indicate that the Doppler shift signal can be detected by lock-in amplifier technique, and the noise will be limited. The technique has a broad applicative perspective in under-water weaponry.
出处
《激光技术》
CAS
CSCD
北大核心
2006年第3期298-300,共3页
Laser Technology
关键词
散射
激光多普勒效应
舰船尾流探测
频移
scattering
laser Doppler effect
ship wake detection
shift frequency
作者简介
朱东华（1979-），男，硕士研究生，现从事光电探测方面的研究。
张晓晖 通讯联系人。E-mail：zhangxiaohui505@vip．sina．com
