Wind error comparison of four different wavelengths of Nd:YAG laser

The wind error of multichannel lidar system is simulated through calculation of atmospheric back-sacttering echo signal and weighted least-square fitting.By comparing the wind errors of four wavelengths of the Nd:YAG laser,two kinds of phenomena are found:when the wavelength is 1064 nm,the wind error is the smallest at all different heights;with the aerosol-molecular ratio descending and finally tending to 1,the statistic error increases sharply,which shows that low aerosol-molecular ratio is quite disadvantageous whatever the signal intensity is.