共 1 条
[1]
Simulation of laser propagation in a turbulent atmosphere. R.Frehlich. Applied Optics . 2000
Digital Cross-Correlation Detection of Multi-Laser Beams Measuring System for Wind Field Detection
被引：0
作者：
LiMin ZhouYaDong JiangZhengYu Zhangand XiaoLin Sui State Key Laboratory of Thin Solid Film and Integrated DevicesSchool of Optoelectronic InformationUniversity of Electronic Science and Technology of ChinaChengdu China North China Research Institute of Electric OpticBeijing China
[610054
,100015
]
机构：
关键词：
Cross-correlation detection;
digital filter;
multi-laser beams measuring system;
signal processing;
signal to noise ratio;
D O I：
暂无
中图分类号：
TP73 [探测仪器及系统];
学科分类号：
081102 ;
0816 ;
081602 ;
083002 ;
1404 ;
摘要：
A cross-correlation detection method to process backscatter signals of multi-laser beams measuring(MLBM) is presented,which can be firstly filtered by the digital filter composed of average median filter and finite impulse response(FIR) digital filter.The processing of backscatter signals using single-pulse and three-pulse cross-correlation detection methods is depicted in detail.From calculation results,the multi-pulse cross-correlation detection could effectively improve signal-to-noise ratio(SNR).Finally,both wind velocity and direction are determined by the peak-delay method based on the correlation function which shows high measuring precision and high SNR of the MLBM system with the assistance of the digital cross-correlation detection.
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页码：366 / 371
页数：6
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