首页> 中文期刊> 《电子科技学刊:英文版》 >Digital Cross-Correlation Detection of Multi-Laser Beams Measuring System for Wind Field Detection

Digital Cross-Correlation Detection of Multi-Laser Beams Measuring System for Wind Field Detection

         

摘要

cqvip: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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