A Study on Real-Time Water Droplets Removal Techniques with Two-Wavelength Scanning LiDAR Monitoring

This study focuses on the technology for real-time water droplets removal using two-wavelength scanning LiDAR monitoring. The LiDAR measures the Ångström exponent, using extinction coefficients at 1064 nm and 532 nm wavelengths, to assess particle size, and calculates depolarization ratio from backscatter signals at 532 nm to determine particle shape. This technology allowed for the identification and classification of particle types, focusing on fine particles while excluding water droplets. The aim of this study is to use scanning LiDAR to distinguish fine particles and water droplets across a wide area and to identify their movement and origin when pollutant concentrations are high.