以主动差分吸收光谱遥感技术为基础，在干净大气环境条件下，结合参考光路设计技术，开展了获取近地面气溶胶颗粒物的光谱新方法研究.针对以宽带氙弧灯为光源的主动差分吸收光谱系统固有宽波段特性，建立了解析颗粒物光学厚度模型，获取了大气颗粒物光学特性.最后通过外场实验，获得测量期间气溶胶颗粒物光学厚度，然后采用对数线性回归获取Angstrom波长指数和混浊系数，以及大气能见度数据.主动差分吸收光谱系统用测量光程范围内的大气总的吸收特性，获得监测区域的颗粒物平均水平，更具有代表性和进一步应用价值.

A new spectrometry is developed to obtain near-ground the optical parameters of atmospheric particles. The Active Differential Optical Absorption Spectroscopy (DOAS) system is developed to measure the optical parameters of atmospheric particles. Under the clean atmospheric condition, the reference optical path is designed to calibrate the system.The broad wavelength band xenon arc lamp is used to monitor the optical parameters of atmospheric particles as light source of differential optical absorption spectroscopy system. The model of optical depth is studied to retrieve the optical properties of atmospheric particles. The optical depth of atmospheric particeles, Angstrom turbidity coefficent, Angstrom wavelength exponent, and visibility were retrieved during the field campaign. Angstrom parameters were retrieved by log-linear regression. The total atmospheric absorption are measured to attain average regional concentrations basing on the active differential optical absorption spectroscopy system, which is more representative and applicable.