摘要
基于脉冲激光测距原理,推导了飞行目标激光测距回光功率的一般方程。基于目标探测跟踪系统的瞄准误差理论,结合测距方程建立了系统准测概率的计算模型。利用Matlab软件仿真分析了激光发散角、系统跟踪精度、目标尺度、探测距离及系统接收口径对回光稳定性的影响。设计了一个飞行目标脉冲激光测距系统,并根据理论分析结果确定了该系统参数,搭建了实验平台。通过对无人机靶板目标的跟踪测距实验,验证了系统的探测性能。通过对比不同大小靶板目标的准测概率与理论推算结果,验证了该模型的有效性。
Based on the working principle of pulsed laser ranging, the general equation of the light echo power of laser ranging for the flight targets is derived. Based on the pointing error theory of the target detection and tracking system and the ranging equation, a computation model of the detection probability for the range system is established. The influences of the laser divergence angle, the system tracking precision, the target scale, the detection distance and the system receiving aperture on the light echo stability of pulsed laser ranging are simulated and analyzed by the Matlab simulation software. A system of pulsed laser ranging for the flight targets is designed, the system parameters are determined according to the theoretical analysis results, and the experimental platform is built. The detection performance of this system is confirmed by the tracking and ranging experiment for the unmanned aerial vehicles. The effectiveness of this model is verified by the comparison between the detection probability and the theoretical derivation one for the target boards with different sizes.
作者
谢庚承
叶一东
雒仲祥
李建民
Xie Gengcheng;Ye Yidong;Luo Zhongxiang;Li Jianming(Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang,Sichuan 621900,China;Graduate School,China Academy of Engineering Physics,Beijing 100088,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第9期230-236,共7页
Laser & Optoelectronics Progress
基金
中国工程物理研究院高能激光科学与技术重点实验室基金(HEL2018-03)
关键词
测量
激光测距
准测概率
瞄准误差
飞行目标
回光稳定性
measurement
laser ranging
detection probability
pointing error
flight target
light echo stability
