I. V. Gryaznykh, P. I. Lysov

In this work the analysis of frequency spectrum of the return signals in atmospheric aerosol formation lidar location is made. The description of backscattered signal model, describing an output signal of the photodetector is submitted. Spectrum of the aerosol formations backscattered signals with different aerosol formation thickness and distances from the lidar system are considered. The spectrum bandwidth estimation for the return signal is made. For a filtering convenience estimation for various groups of the backscattered signals the difference between value of a spectrum on zero frequency and the 0,5 Nyquist frequency calculated. The estimation of an influence of atmosphere turbulence noise and of aerosol extinction casual changes on a spectrum of the backscattered signal is given.