期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
一种全方位激光束检测仪 被引量:1
1
作者 徐德衍 《光学学报》 EI CAS CSCD 北大核心 1996年第4期520-524,共5页
基于单平板的两种旋转特性(绕表面中心法线及绕入射光束光轴旋转),作者提出了一种任意剪切方向的全方位剪切干涉仪,这不仅对于旋转对称光束、尤其对于非旋转对称激光束的定量检测具有十分重要的应用价值。文中描述了该仪器原理、参... 基于单平板的两种旋转特性(绕表面中心法线及绕入射光束光轴旋转),作者提出了一种任意剪切方向的全方位剪切干涉仪,这不仅对于旋转对称光束、尤其对于非旋转对称激光束的定量检测具有十分重要的应用价值。文中描述了该仪器原理、参数及应用实例。 展开更多
关键词 全方位 准直性 发散性 激光束检测仪
原文传递
3D Laser Imaging Reconstruction of Scenes Using New Photometric Gaussian Beam Range Equation
2
作者 Mounir Boujenab Noureddine Eddeqaqi Cherkaoui 《Journal of Physical Science and Application》 2015年第4期309-317,共9页
In this article the problem of three-dimensional (3-D) reconstruction of scenes from terrestrial laser rangefinder data is processed, we present the simulations results of radiometric range function of the laser ran... In this article the problem of three-dimensional (3-D) reconstruction of scenes from terrestrial laser rangefinder data is processed, we present the simulations results of radiometric range function of the laser range finder imaging system for better optimization of maximum range detection with a given SNR (Signal-to-noise ratio). The study proposes a new reformulation of the radiometric Gaussian beam range equation on the basis of the photodetector active area. The adjustment of the optical and geometrical characteristics of the laser range finder so defined can be used to minimize the signal span to avoid the saturation of the detector cell and improve the ranging measurements (accuracy and range) for a 3D imaging application. 展开更多
关键词 Laser ranging and imaging signal to noise ratio Gaussian beam photometric range equation.
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部