中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共4条，第1-4条

帮助

条数/页：排序方式：
	多角度偏振成像仪面阵探测器筛选及测试方法期刊论文 OAI收割光学学报, 2020, 卷号: 40 - \| 收藏 \| 浏览/下载：19/0 \| 提交时间：2020/10/26 measurement directional polarimetric camera area CCD screening electro-optical performance high reliability and stability 测量多角度偏振成像仪面阵电荷耦合器件筛选光电性能高稳定性与可靠性
	The stability design and realization of airborne platform based on TMS320F2812 (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：40/0 \| 提交时间：2013/03/25 Airborne electro-optical stable platform can isolate movement and vibration of the airframe stabilizes the optic axis of the photoelectic detector realize the observation and tracking for the object. It has comprehensive application value in army and cicil field. Most of present airborne platforms are analogic control system digital control system can improve the system general performance digital control is the development direction of platform systems. In view of the requirements of isolating disturbances and stabilizing optical axis of high-precision photoelectric guidance system a three-axis stabilized platform system centering on the rate gyro was designed. The disturbance-isolation theory of the stabilized platform was analyzed and the control structure including multiple closed-loops was designed. At last a controller of the servo system based on TMS320F2812 DSP has been designed. Experiment results meet the technical index and precision requirement and illustrate the practicability and effectiveness of the scheme. 2011 IEEE.
	Super-resolved imaging system with oversampling technology (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China 作者: Zhang X.; Wang L.-J.; Wang L.-J.; Zhang J.-P.; Liu Y. 收藏 \| 浏览/下载：56/0 \| 提交时间：2013/03/25 It has been a significant issue in the imaging filed to provide the highest possible resolution of an electro-optical imaging system(E-O imaging system). CCD arrays are inherently undersampled and spatial frequency above Nyquist frequency is distorted so as to create ambiguity and Moire patterns for targets imaged by E-O system.. As to this drawback a system-design project is introduced and discussed in the paper. It's well known that many image quality metrics are linked to MTF. However CCDs don't satisfy MTF condition namely the shift-invariant property so MTF synthesis can't appraise the whole system simply by the MTF product of the few sub-system ones in E-O imaging system. Then it is depicted how to solve this problem in the following. Finally the analyses and comparisons of the imaging performance parameters with and without super-resolved technologies are shown.
	New photo-alignment technology using azo-ciye materials (EI CONFERENCE) 会议论文 OAI收割 IDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005, December 6, 2005 - December 9, 2005, Takamatsu, Japan Shao-jin L.; Jun-rui Z.; Zhi-hua L. 收藏 \| 浏览/下载：61/0 \| 提交时间：2013/03/25 This paper describes a new photo-alignment technology using polyimide and azo-dye materials. We study the alignment performance of this new material called SY04 which contains two azo groups. In order to improve stability of the photoaligned film a sort of PI material is mixed. A fast response performance and a good electro-optical performance are acquired. These alignment materials can provide good thermo-stability and is stable under weak UV irradiation as well.