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浏览/检索结果: 共11条，第1-10条 帮助

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Communication synchronization in wireless optical link (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China
作者:  Guo J.;  Guo J.;  Wang H.;  Wang H.;  Wang H.
收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25
An FPGA based transceiving synchronization method is demonstrated for Free Space Optical (FSO) communication system  which is discussed separately as the transmitting protocol and the receiving protocol. During the discussion of these two parts  the co-operation of them is also discussed. The transmitting protocol interfaces the outer input data with a parallel port  buffers the input data  encodes the input data stream  serializes the parallel data and outputs the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The receiving protocol filters and synchronizes the input serial data stream  parallels the serial data stream  decodes the input data  checks received error  handles transmission exception and interfaces the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces  meaning that when interfacing the presented system to an outer system  users don't have to consider what protocol the outer system transceiving data stream is under  for example  the TCP/IP protocol or anything else  in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is a working solution at a certain bit rate scale. 2012 IEEE.  
DESIGN OF HIGH EFFICIENCY AND LARGE SEPARATING ANGLE BEAM SPLITTER BASED ON PHOTONIC CRYSTAL CAVITY RESONATOR 期刊论文  OAI收割
modern physics letters b, 2011, 卷号: 25, 期号: 24, 页码: 1963-1969
Guo H; Liao QH; Yu TB; Chen SW; Huang YZ
收藏  |  浏览/下载：22/0  |  提交时间：2011/09/14
Room temperature GaN/AlGaN self-mixing terahertz detector enhanced by resonant antennas 期刊论文  OAI收割
applied physics letters, 2011, 卷号: 98, 期号: 25, 页码: 252103
Sun, Y.F.; Sun, J.D.; Zhou, Y.; Tan, R.B.; Zeng, C.H.; Xue, W.; Qin, H.; Zhang, B.S.; Wu, D.M.,
收藏  |  浏览/下载：42/0  |  提交时间：2012/06/13
Transmission properties of multiband fss based on fractal elements (EI CONFERENCE) 会议论文  OAI收割
2010 9th International Symposium on Antennas Propagation and EM Theory, ISAPE 2010, November 29, 2010 - December 2, 2010, Guangzhou, China
作者:  Gao J.
收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25
Linearity measurement for image-intensified CCD (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Zhang L.;  Zhao Y.;  Zhao Y.;  Zhao Y.;  Yan F.
收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25
To the characteristic of the ultraviolet CCD (UV ICCD)  technique of the linearity measurement of the UV ICCD camera is studied based on the theory of radiometry. Approach of linearity measurement is discussed  and a kind of measurement system of the UV ICCD has been developed based on the method of neutral density filter. It is very important that the transmittance of the filter is independent of the wavelength in the method of neutral density filter. Black metal screen mesh with different transmittance is used in our system  and calibration of the filters' transmittance in different working positions has been done. Meanwhile  to assure the uniform of the received radiation on the target of the detector at any test points  an integrating sphere is placed behind the neutral filter to balance light. The whole measurement system mainly consists of a deuterium lamp with high stabilization  the attenuation film with transmission  integrating sphere  optical guide and electro-shift platform. Auto control is realized via special software during the test. With this instrument  the linearity of the UV ICCD was measured. Experimental results show that the nonlinearity of the UV ICCD under fixed-gain is less than 2% and the uncertainty of measurement system is less than 4%. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Research of power transmission line maintenance robots in SIACAS 会议论文  OAI收割
2010 1st International Conference on Applied Robotics for the Power Industry, CARPI 2010, Montreal, QC, Canada, October 5-7, 2010
作者:  Wang HG(王洪光);  Jiang Y(姜勇);  Liu AH(刘爱华);  Fang LJ(房立金);  Ling L(凌烈)
收藏  |  浏览/下载：28/0  |  提交时间：2012/06/06
Transmission guided-mode resonance filters based on high reflection multilayer stacks 期刊论文  iSwitch采集
Optik, 2010, 卷号: 121, 期号: 12, 页码: 1144-1147
作者:  Ma, Jianyong;  Liu, Shijie;  Zhang, Dawei;  Yao, Jianke;  Xu, Chen
收藏  |  浏览/下载：32/0  |  提交时间：2019/05/10
Optical Quality Improvement of Si Photonic Devices Fabricated by Focused-Ion-Beam Milling 期刊论文  OAI收割
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2009, 卷号: 27, 期号: 19, 页码: 4306
Tian, J; Yan, W; Liu, YZ; Luo, J; Zhang, DZ; Li, ZY; Qiu, M
收藏  |  浏览/下载：22/0  |  提交时间：2013/09/24
Laboratory Experiment of a High-contrast Imaging Coronagraph with New Step-transmission Filters 会议论文  OAI收割
San Diego, CA, 2008-8-2
作者:  Jiangpei Dou;  Yongtian Zhu;  Xi Zhang;  Deqing Ren
收藏  |  浏览/下载：26/0  |  提交时间：2014/01/02
Laboratory experiment of a coronagraph based on step-transmission filters 会议论文  OAI收割
Marseille, France, 2008-6-23
作者:  Jiangpei Dou;  Yongtian Zhu;  Xi Zhang;  Deqing Ren
收藏  |  浏览/下载：20/0  |  提交时间：2014/01/01