摘要
针对传统米散射激光雷达结构复杂和设计成本高的缺陷,提出一种用来探测大气气溶胶的便携式米散射激光雷达系统。首先设计了收发同轴的光学系统结构,然后对光电探测器进行了独立设计,最后基于系统结构搭建了可移动式米散射激光雷达实验平台,对大气气溶胶进行了初步探测。实验结果表明:采用设计的电源滤波器滤波后,开关电源原始纹波电压幅度从0.1 V降低到了0.01 V内,噪声幅值控制在0.1 V左右;系统在白天、夜晚的斜程探测距离分别为4.5、6 km,可以对特定区域的气溶胶进行实时监测。
Aiming at the complex structure and high design cost of traditional meter scattering lidar, a portable meter scattering lidar system for detecting atmospheric aerosols is proposed. First, the optical system structure of coaxial transceiver is designed, and then the photoelectric detector is designed independently. Finally, based on the system structure, a movable meter scattering lidar experimental platform is built to preliminarily detect atmospheric aerosols. The experimental results show that after filtering with the designed power filter, the original ripple voltage range of switching power supply is reduced from 0.1 V to 0.0 1 V, and the noise amplitude is controlled at about 0.1 V. The oblique detection distance of the system in the day and night is 4.5 km and 6 km respectively, which can monitor the aerosol in a specific area in real time.
作者
李东旭
孙高飞
衣文索
蒋雨辰
刘宗麟
LI Dongxu;SUN Gaofei;YI Wensuo;JIANG Yuchen;LIU Zonglin(School of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130022,China;College of Electronic Information Engineering,Changchun University,Changchun 130022,China)
出处
《光通信技术》
2023年第2期12-16,共5页
Optical Communication Technology
关键词
大气气溶胶
激光雷达
系统设计
回波信噪比
atmospheric aerosol
lidar
system design
echo signal-to-noise ratio
