Fig. 1. Structural schematic of experimental observation system

Fig. 2. Comparison of wavelet denoising effect between soft and hard thresholds of lidar range correction signal data at 20:45:03 on December 8, 2011

Fig. 3. Comparison of wavelet denoising effect of lidar range correction signal data with different thresholds at 20:45:03 on December 8, 2011

Fig. 4. Comparison of wavelet denoising effect of Raman scattering lidar signal. (a) At 20:11:13 on December 8, 2011; (b) at 20:45:03 on December 8, 2011; (c) at 19:30:06 on December 9, 2011; (d) at 19:55:46 on December 9, 2011

Fig. 5. (a) Denoising signal of Raman scattering lidar in stratosphere and (b) stratospheric aerosol extinction coefficient profile at 20:11:13 on December 8, 2011; (c) denoising signal of Raman scattering lidar in stratosphere and (d) stratospheric aerosol extinction coefficient profile at 20:45:03 on December 8, 2011

Fig. 6. (a) Denoising signal of Raman scattering lidar in stratosphere and (b) stratospheric aerosol extinction coefficient profile at 19:30:06 on December 9, 2011; (c) denoising signal of Raman scattering lidar in stratosphere and (d) stratospheric aerosol extinction coefficient profile at 19:55:46 on December 9, 2011