Faint signal processing of lidar based on wavelet multi-resolution analysis

A wavelet multi-resolution analytical method (WMRA) was used to analyze those echosignals.By the measure,for those signals with S/N above 1.2,the noise can be eliminated,and effective signals can be picked up.When applying the WMRA to a TEA CO2 DIAL lidar,a satisfying result was obtained.When using this method,the ability of laser radar can be greatly improved.