Fig. 1. Waveform diagram of lidar echo signal acquisition

Fig. 2. “Readout-accumulation-storage” IP architecture of FPGA

Fig. 3. Circuit schematic diagram for data acquisition and time integration

Fig. 4. Physical picture of acquisition module and integration module

Fig. 5. Comparison of accumulated collection results

Fig. 6. Comparison of RSCS of atmospheric echoes obtained by three types of equipment. (a) Proposed module and oscilloscope DPO5104; (b) proposed module and PXI-8926

Fig. 7. Installation position and lidar's site photos

Fig. 8. Experimental results. (a) Extinction coefficient pseudo-color image; (b) depolarization ratio pseudo color image