QQ客服 官方微博 反馈留言

题名	运动轨迹可调式赝热光源强度关联成像理论与实验研究
作者	吴楠
学位类别	硕士
答辩日期	2015
授予单位	中国科学院上海光学精密机械研究所
导师	韩申生
关键词	鬼成像,赝热光源,散斑场,稀疏约束,运动轨迹
其他题名	The Theoretical and Experimental Research on Pseudo-Thermal Light Ghost Imaging Based on Variable Motion Trail
中文摘要	强度关联成像，俗称“鬼成像”，是一种全新的非局域成像方式，是基于光场的关联测量获得目标的像，从最初的纠缠光源关联成像到今天的可预置的基于随机相位板的赝热光源强度关联成像，从最初的实验室论证到今天的基于强度关联成像技术的三维成像激光雷达探测，这项技术在最近十年取得了巨大的进步。在可预置的基于随机相位板的赝热光源强度关联成像中对随机相位板的运动轨迹进行具体的设计，并分析出其中部分重要指标对成像质量的影响，这是本文的意义所在。本篇论文主要包含以下四个部分： 第一章首先介绍了强度关联成像技术的原理以及它的发展历程，然后介绍了本文重点研究的可预置赝热光源强度关联成像技术和该技术在激光雷达探测领域所取得的进展，最后对几项本文中将要重点用到的算法及指标进行了相应的介绍。 第二章首先介绍了基于随机相位板的赝热光源强度关联成像系统搭建的两个关键部分及所选用的设备，然后针对随机相位板的运动轨迹设计详细介绍了三种不同的方案并进行了比较，最后重点介绍了为了增大采样数而采取的随机相位板往返运动时的理论。 第三章分析了几项重点参数对成像质量的影响，从数值模拟和实验两个方面，采取差分鬼成像重构算法和稀疏约束鬼成像重构算法，首先是光斑之间的偏移量和光斑大小对成像质量的影响，其次是预置条件下光斑抖动对成像质量的影响，最后是预置条件下激光功率抖动对成像质量的影响。 第四章是总结和展望，首先总结了本论文的主要研究内容，随后就下一步的研究工作提出了相关建议和展望。
英文摘要	Intensity correlated imaging, commonly known as “ghost imaging”, is a new non-localized imaging technology. It is based on the correlation measurement of the light. From the initial entangled-photon imaging to the ghost imaging system with repeatable pseudo-thermal light based on random phase plate, from the argumentation in the laboratory to the laser radar technology based on intensity correlated imaging, this technology developed very rapidly in the last ten years. In this article, the movement locus of random phase plate will be designed, and the influence of several important parameter on the quality of ghost imaging is researched in the ghost imaging system with repeatable pseudo-thermal light based on random phase plate. This article consists of four chapters: Chapter 1. Firstly, we simply introduce the theory and development history of intensity correlated imaging. Next, we introduce the technology of intensity correlated imaging with repeatable pseudo-thermal light based on random phase plate and the progress of this technology in the field of laser radar. Then we introduce two algorithms and several indexs that will be used in this article. Chapter 2. Firstly, we introduce two important parts and the related equipment in the establishment of the ghost imaging system with repeatable pseudo-thermal light based on random phase plate. Nest, we introduce three plans of the the movement locus of random phase plate. Then, in order to increase the samples, we introduce the method to make to-and-fro movement of random phase plate. Chapter 3. We analyze the influence of several important parameter on the quality of ghost imaging from the point of simulation and experiment by using differential ghost imaging linear reconstruction algorithm and nonlinear sparsity constraints reconstruction algorithm. The first is the different offset value of laser spot and the size of laser spot. The second is the shake of laser spot and the last is the shake of laser power. Chapter 4. We first summarize the main research content of this paper and then put forwardsome relevant suggestions and outlooksfor further research.
语种	中文
内容类型	学位论文
源URL	[http://ir.siom.ac.cn/handle/181231/16932]
专题	上海光学精密机械研究所_学位论文
推荐引用方式 GB/T 7714	吴楠. 运动轨迹可调式赝热光源强度关联成像理论与实验研究[D]. 中国科学院上海光学精密机械研究所. 2015.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。