摘要
船舶在航行过程中形成的一种由大量气泡组成的区域,被称为尾流场。本文深入研究尾流场的光学特征和锁相方法技术,并在此基础上提出基于双路锁相方法技术的尾流信号监测方法。该方法利用相关器实现输入的待测信号和具有相同频率的参考信号互相关,进而检测出噪声中携带的信息。
The wake field is a region formed by a large number of bubbles in the course of navigation. This paper studies the optical characteristics and phase locking method technology of the flow field,and put forward the method of dual phase flow signal monitoring technique based on the tail. The method is based on the correlation between the input signal and the reference signal with the same frequency,and then detects the information which is carried in the noise.
出处
《舰船科学技术》
北大核心
2016年第11X期85-87,共3页
Ship Science and Technology
关键词
尾流监测
锁相方法
激光探测
wake flow
lock-in amplification
laser detection
