摘要
为了验证远程激光雷达系统的关键技术,提出了一种基于Nd:YAG固体激光器的激光雷达试验系统。试验系统由光学收发子系统、控制子系统、信号处理子系统组成,利用电荷耦合器件进行引导,采用双探测器型粗、精双轴跟踪结构实现对目标的精密跟踪,采用数字域的信号处理方法提升系统的探测精度。最后分析了系统对不同反射截面积目标的探测距离,分析结果表明,在1级大气条件下,系统对1 m^2目标的探测距离达到22 km。
In order to test the key technologies of long-range LADAR, the experimental system was proposed based on the Nd：YAG laser. The system was combined with optical sub-system, control subsystem and signal process sub-system, and directed by charge-coupled device（CCD） when working.Coarse and fine dual-axis structure was adopted to realize the precise tracking of the target. Meanwhile,in order to increase the detection precision, the laser signal was processed in digital domain. At last, the detection range of the system was analyzed versus different laser cross section targets（LCS）. The result shows that if the LCS is 1 m^2 and the atmosphere is first order, the detection range of the system is 22 km.
出处
《红外与激光工程》
EI
CSCD
北大核心
2015年第B12期68-72,共5页
Infrared and Laser Engineering
