摘要
提出了一种基于激光束边界面的快速求交算法。基于激光雷达信号的时空分布特性,推算出了探测目标对信号的响应函数,建立了二者的作用过程模型,构建了基于激光反射断层成像的目标重构仿真系统。利用采样间隔和探测角度对重构图像质量的影响,进行了两组对比仿真实验,在不同条件下运用滤波反投影算法实现了目标二维轮廓的图像重构。
A fast algorithm based on the boundary of laser beam is proposed. Based on the time-space distribution of laser radar signals, the response function of the detection target to the signal and the model of the interaction process between them are deduced and established. A target reconstruction simulation system based on the laser reflection tomography is constructed. Based on the influences of the different sampling intervals and the different detection angles on the reconstructed image quality, two sets of comparative simulation experiments are carried out. Under different conditions, the filter backprojection algorithm is used to achieve the image reconstruction of the two- dimensional contour for the target.
作者
杨彪
胡以华
李敏乐
郭力仁
唐进迎
陈曦
Yang Biao;Hu Yihua;Li Minle;Guo Liren;Tang Jinying;Chen Xi(1 State Key Laboratory of Pulsed Power Laser Technology,National University of Defense Technology,Hefei,Anhui 230037,China;Anhui Province Key Laboratory of Electronic Restriction,National University of Defense Technology,Hefei,Anhui 230037,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2018年第11期353-360,共8页
Acta Optica Sinica
基金
国家自然科学基金(61271353)
关键词
遥感
激光雷达
反射断层成像
建模仿真
光线求交
响应方程
反投影重构
remote sensing
laser radar
reflection tomography
modeling and simulation
ray intersection
response equation
back projection reconstruction
