一种基于FPGA的激光散斑实时测量目标角振动的新方法

A New Approach Based on FPGA for Real-Time Measurement of the Target Angular Vibration by the Laser Speckle

针对数字散斑相关测量技术,提出了一种新的激光测量目标角振动的方法。该方法利用FPGA实现信号处理,构建的测振系统具有较远距离实时测振、系统结构简单、对器件的要求较低等特点。分别介绍了发射模块、接收模块以及信号处理模块。基于此方法构建了一套实验系统,并进行了初步的实验。仿真结果及实验表明激光散斑法实时测量目标角振动是可行的。

According to the DSCM,a new approach to measure the target angular vibration by a laser is put forward.The signal management in this method is realized by FPGA.This approach has several advantages of real time,remote sensing,simple structure and non-exigent for the capability of components.The transmitter module,receiver module and the signal processing module have been introduced.According to this new method,an experiment system has been developed and a preliminary experiment was conducted.The simulation and experiment results have shown that the method using laser speckle to measure real-time the target angular vibration is feasible.