1 中国电子科技集团公司第二十七研究所, 河南 郑州 450047
2 中国人民解放军92853部队, 辽宁 葫芦岛 125106
为了满足对多个目标的全视景监视和跟踪需求,给出了一种基于多探测器的全视景多目标监视及跟踪系统设计方案,该方案利用视频拼接技术和多目标跟踪算法,实现对目标的360°监视和跟踪,并实时输出目标的位置信息。首先对比了四种实现全景监视和跟踪的技术途径的优劣,确定采用多探测器拼接技术构成全景监视和多目标跟踪系统,接着介绍了上述全景监视和多目标跟踪系统的组成和原理,给出系统设备在厂内和外场的试验验证效果,试验结果表明系统监视和跟踪效果满足设计要求。该系统满足军、民用全景监视和多目标跟踪领域的使用需求。
CameraLink接口 全景监视技术 视频拼接技术 多目标跟踪算法 图像测量 cameraLink interface panoramic surveillance technology video splicing technology multiple target tracking algorithm image measurement
1 长春理工大学 光电工程学院, 长春 130022
2 吉林省光电测控仪器工程技术研究中心,长春 130022
为了降低基于硅基液晶拼接的动态星模拟器背景杂散光, 对传统的光学引擎进行优化, 提出一种多偏振分光棱镜组合方式, 并对其光机结构进行设计.阐述了光学引擎照明系统的设计方案, 讨论了降低视场角、增强均匀性的方法.通过Tracepro对照明光学系统进行仿真, 对照明光源设计方案的可行性进行了验证.实验结果表明: 优化后的动态星模拟器杂散光辐照度降低了2.93倍.优化后的光学引擎有效地抑制了背景杂散光, 并且增强了两片反射式硅基液晶对比度的一致性.
反射式硅基液晶 拼接技术 光学引擎 偏振分光棱镜 照明光学系统 光学设计 Liquid crystal on silicon Splicing technology Optical engine Polarization beam splitter Lighting optical system Optical system design
Author Affiliations
Abstract
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
We develop a splicing technology of Ti:sapphire crystals for a high-energy chirped pulse amplifier laser system that can suppress the parasitic lasing to improve the amplification efficiency compared to a large-size single Ti:sapphire crystal amplifier. Theoretical investigations on the characteristics of the amplifier with four splicing Ti:sapphire crystals, such as parasitic-lasing suppression and amplification efficiencies, are carried out. Some possible issues resulting from this splicing technology, including spectral modulation, stretching or splitting of the temporal profile, and the sidelobe generation in the spatial domain (near field and far field), are also investigated. Moreover, the feasibility of the splicing technology is preliminarily demonstrated in an experiment with a small splicing Ti:sapphire crystals amplifier. The temporal profile and spatial distribution of the output pulse from the splicing Ti:sapphire crystal amplifier are discussed in relation to the output pulse from a single Ti:sapphire crystal amplifier.
chirped pulse amplification splicing technology Ti:sapphire crystal amplifier High Power Laser Science and Engineering
2014, 2(2): 02000e11
