为了研究CCD光束成像技术探测臭氧浓度廓线有效探测距离及反演方法，设计了一台硬件探测系统。该系统选用266、280 nm两个波长的连续激光作为差分吸收的光源。基于激光功率、曝光时间、CCD有效接收面积、气溶胶的浓度和臭氧的浓度等主要参数，对探测信号的信噪比进行数值仿真。假设气溶胶分为清洁、污染和重污染三种情况，臭氧浓度分为低和高两种情况，仿真结果表明：在探测误差小于10%的情况下，低臭氧浓度时三种不同气溶胶的条件下，有效探测距离皆大于2 km；高臭氧浓度时，在清洁型和污染型的气溶胶条件下，有效探测距离仍大于2 km，重污染条件下的有效探测距离为1.7 km；臭氧浓度的反演结果与假设高度廓线基本一致。仿真结果有利于了解臭氧浓度廓线探测的CCD光束成像系统的最优参数设定，进而实现对臭氧浓度廓线的有效探测。

In order to investigate the effective distance and retrieval method of CCD laser beam imaging technique in detecting ozone concentration profile, a hardware detection system was designed. This system employed the 266 nm and 280 nm continuous-wave laser as differential absorption lidar transmitter. The signal-to-noise ratio (SNR) of detection echo signal was simulated based on the main parameters, such as laser power, exposure time, the effective area of CCD camera, aerosol concentration and ozone concentration. Supposed that aerosol is clean, pollutant and heavy pollutant types and ozone concentration is low and high cases, with the uncertainty of less than 10%, theoretical analysis results show that the effective detection distance is more than 2 km under the condition of three different aerosols cases with low ozone concentration; the effective detection distance is still more than 2 km under the clean and pollutant aerosol cases and more than 1.7 km under heavy pollutant aerosol with high ozone concentration; the retrieval ozone concentration profiles are consistent to the assumed ones. The simulation results are helpful to understand the optimal parameters of CCD laser beam imaging technique in detecting ozone concentration profile and then realize effective detection to ozone concentration profile.