作者: FENG Lihui,ZHANG Qing,LIU Xiang,ZUO Lin,YANG Aiying (School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China;National Science and Technology Venture Capital Development Center, Beijing, 100081, China)
出处: 中国通信(英文版) 2014 第11卷 第2期 P78-82
关键词: 性能监测系统;纳秒脉冲;峰值检测;光学性能;数字转换器;抗混叠滤波器;信号包络;数据信号
摘要: In optical performance monitoring system, the analog to digital converter is needed to detect the peak of nanosecond pulse and get the signal envelope ...
作者: Yang LIU,Haobo CHENG,Zhichao DONG,Hon-Yuen TA (School of Optoelectronics,Beijing Institute of Technology,Beijing 100081,China;Department of Mechanical and Biomedical Engineering,City University of Hong Kong,Hong Kong,Chin)
出处: 光电子学前沿 2014 第7卷 第1期 P77-83
关键词: edge;effect;convergence;rate;extension;algorithms
摘要: This study presents a strategy which integrates extra polishing path (EPP) and error map extension to weaken the edge effect in the ultraprecise optic ...
作者: Yao Hu1;( huy08@bit.edu.cn);Nanfen Wang1;( wangnanfen@163.com) (1School of Optoelectronics, Beijing Institute of Technology, Beijing, 100081, China)
出处: Key Engineering Materials 2014 Vol.613 P64-69
关键词: Cross-Grating;Diffraction Pattern;Image Processing;Orthogonality Measurement
摘要: Cross-gratings or two-dimensional gratings have found applications in precision displacement measurement for nanoscale machine tools or mask-wafer ali ...
作者: 赵骥1;张亮亮2;骆怡蔓2;吴同2;张存林2;赵跃进1; (1Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optoelectronics,Beijing Institute of Technology;2Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Key Laboratory of Terahertz Optoelectronics, Ministry of Education,Capital Normal University)
出处: 中国物理B 2014 第23卷 第12期 P412-415
关键词: terahertz;frequency;red-shift;plasma;collision
摘要: We conduct a frequency spectrum experiment to investigate terahertz(THz) emissions from laser-induced air plasma under different laser incident powers ...
作者: Liu Ming,Zhang Hai-Tao,Gong Ma-Li,Zhao Yue-Jin,Cheng Wen-Yong,Meng Kuo,Zheng Chao (State Key Laboratory of Tribology(SKLT11B05), Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China;Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optoelectronics,Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Tribology(SKLT11B05), Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China;Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optoelectronics,Beijing Institute of Technology, Beijing 100081, China)
出处: 中国物理B(英文版) 2014 第23卷 第4期 P335-341
关键词: pulsed;fiber;amplifier;signal-to-noise;ratio;cascaded;amplifier;master;oscillator;power;amplifier
摘要: A theoretical analysis of noise in a high-power cascaded fiber amplifier is presented. Unlike the noise theory in low power communication, the noise o ...
作者: Min Lin,Jianliang Jiang (School of Optoelectronics,Beijing Institute of Technology)
出处: 2014 Asia-Pacific Electronics and Electrical Engineering Conference(EEEC 2014) 中国上海 2014
会议录: Proceedings of the Asia-Pacific Electronics and Electrical Engineering Conference(EEEC 2014)
摘要: Filter circuit is an important part of the tag identification and detection in the Electronic Article Surveillance(EAS)system and its performance has ...
作者: Pengyun Liu,Jiangliang Jiang,Chunfang Wang (School of Optoelectronics,Beijing Institute of Technology)
出处: 2014 Asia-Pacific Electronics and Electrical Engineering Conference(EEEC 2014) 中国上海 2014
会议录: Proceedings of the Asia-Pacific Electronics and Electrical Engineering Conference(EEEC 2014)
摘要: The purpose of this paper is to analyze noise generation and its suppression technology in readout circuits.The ideas are as follows:a positive channe ...
作者: Xu, Weipenga,b;Salzmann, Mathieub,c;Wang, Yongtian1;Liu, Yue1; (Weipeng Xu ;19 ;20 Mathieu Salzmann ;20 ;21 Yongtian Wang ;19 Yue Liu ;19 19. School of Optoelectronics, Beijing Institute of Technology (BIT), China 20. NICTA, Canberra, Australia 21. Australian National University (ANU), Australia)
出处: Lecture Notes in Computer Science 2014 Vol.8690 No.1 P64-79
关键词: Nonrigid registration;surface completion;RGBD images
摘要: Nonrigid surface registration is a challenging problem that suffers from many ambiguities. Existing methods typically assume the availability of full ...
作者: Danting Wang,Ya Zhou (School of optoelectronics,Beijing Institute of Technology,Beijing 100081)
出处: 2014年上海市研究生学术论坛:生物医疗仪器 上海 2014
会议录: 2014年上海市研究生学术论坛:生物医疗仪器论文集
关键词: vein;display;system;three-dimensional;reconstruction;projective;transformation
摘要: Venipuncture is the most common way of all invasive medical procedures.In this paper,we design a stereo-vision-based vein display system for venipunct ...
作者: 禹璐,程德文,周伟,王涌天,刘小华 (北京理工大学光电学院)
出处: 光学精密工程 2014 第3期 P525-532
关键词: 光学设计;医学成像;硬性内窥镜;杂散光
摘要: 基于光学系统结构研究了硬性内窥镜光学系统内部杂散光的成因及抑制方法,以提高其成像效果。通过Lighttools软件进行光线追迹,分析了硬性内窥镜光机结构的杂散光;通过杂光路径分析,提出光线在中继系统和物镜组中发生全反射是硬性内窥镜存在杂散光的原因,由此研究了相应的杂散光抑制方法:即调整物镜组结构控制 ...