中国科学院机构知识库网格系统: 检索

南山1m大视场天文望远镜CCD成像终端用户使用手册 研究报告 OAI收割
2018
作者: 冯国杰

|

收藏 | 浏览/下载：63/0 | 提交时间：2019/07/10

南山1m大视场天文望远镜 CCD参数 UCAM软件 CCD性能 Nanshan 1m Wide field Telescope CCD parameters UCAM software CCD performance

MONITORING WATER QUALITY OF LAKE TAIHU FROM HJ-CCD DATA USING EMPIRICAL MODELS 会议论文 OAI收割
2012 Ieee International Geoscience and Remote Sensing Symposium, New York
Li, Junsheng; Zhang, Bing; Shen, Qian; Zou, Lei; Li, Liwei

收藏 | 浏览/下载：18/0 | 提交时间：2014/12/07

HJ-1 Wide Coverage Multi-spectral CCD Camera HJ-CCD Lake Taihu water quality parameters TOTAL SUSPENDED MATTER

Study on supper resolution reconstruction based on staggered arrays (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Yuan Z.; Xing Z.; Guang J.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

The image resolution can be improved without increasing the requirement to optical imaging systems' parameters and decreasing the size of CCD pixel by staggered arrays technology which arranges several CCDs in a specific mode. In this paper an image super resolution method of improving the image resolution for 1.5 times both in two directions by 4 linear arrays staggered based on this technology is presented which avoids the large computation in a single time by use of circulation method. This method is proved effective by the digital simulation and a simulated experiment platform is constructed to test its feasibility. The image resolution is improved for 1.42 times of the unreconstructed image according to the imaging experiment of resolution chart which is closed to 1.5 times in ideal case. And also the reconstructed and unreconstructed images are evaluated by the image information entropy which proves that the reconstructed image contains more information. 2011 IEEE.

Parameter identification of airborne vibrated image based on high-speed CCD (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Shi J.; Xue X.; Guo Y.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

In order to identify the vibration parameters of a vibrated image the principle and shortage of the traditional methods that based on image derivative and image transformation are analyzed and a new parameter identification method is proposed afterward. By placing a high-speed CCD aside the master CCD the vibration can be sampled accurately and more information can be obtained for parameter identification. The series frames that captured by high-speed CCD are processed by gray projection algorithm and the vibration extents between adjacent frames along x and y direction are obtained. By using simple triangle operations the vibration parameters can be identified and the computational complexity of which can be reduced greatly. The experiment shows that the parameter identification method based on high-speed CCD can identify the parameters of vibration with any form accurately. The precise of parameter identification for linear vibration is less than 2.95%. 2010 IEEE.

Analysis of laser jamming to satellite-based detector (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者: Guo L.-H.; Guo R.-H.; Wang S.-W.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

The reconnaissance satellite communication satellite and navigation satellite used in the military applications have played more and more important role in the advanced technique wars and already become the significant support and aid system for military actions. With the development of all kinds of satellites anti-satellite laser weapons emerge as the times require. The experiments and analyses of laser disturbing CCD (charge coupled detector) in near ground have been studied by many research groups but their results are not suitable to the case that using laser disturbs the satellite-based detector. Because the distance between the satellite-based detector and the ground is very large it is difficult to damage it directly. However the optical receive system of satellite detector has large optical gain so laser disturbing satellite detector is possible. In order to determine its feasibility the theoretical analyses and experimental study are carried out in the paper. Firstly the influence factors of laser disturbing satellite detector are analyzed in detail which including laser power density on the surface of the detector after long distance transmission and laser power density threshold for disturbing etc. These factors are not only induced by the satellite orbit but dependence on the following parameters: laser average power in the ground laser beam quality tracing and aiming precision and atmospheric transmission. A calculation model is developed by considering all factors which then the power density entering into the detector can be calculated. Secondly the laser disturbing experiment is performed by using LD (laser diode) with the wavelength 808 nm disturbing CCD 5 kilometer away which the disturbing threshold value is obtained as 3.5510-4mW/cm2 that coincides with other researcher's results. Finally using the theoretical model the energy density of laser on the photosensitive surface of MSTI-3 satellite detector is estimated as about 100mW/cm2 which is largely exceed the disturbing threshold and therefore verify the feasibility of using this kind of laser disturbing the satellite-based detector. According to the results. using the similar laser power density absolutely saturate the requirements to laser disturbing satellite-based detector. If considering the peak power of pulsed laser even decrease laser average power it is also possible to damage the detector. This result will provide the reliable evidences to evaluate the effect of laser disturbing satellite-based detector. 2009 SPIE.

The performance test and the application of CCD (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者: Wang S.-R.; Qu Y.; Zhang Z.-D.; Yang X.-H.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

The e2v technologies' CCD sensor CCD57-10 which will be used as a detector in the Limb UV Imaging Spectrometer is tested at first. Then the spectral responsivity calibration of the whole Imaging Spectrometer simply is described. The error analysis and the correction of the test of CCD's parameters under good repeatability and stability indicate that the properties of the CCD are suitable to the Limb UV Imaging Spectrometer. The spectral responsivity calibration and the theoretical calculation of the whole Imaging Spectrometer are within an acceptable error level. 2009 SPIE.

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：67/0 | 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.

Study of high precision non-contact measurement based on CCD (EI CONFERENCE) 会议论文 OAI收割
4th International Conference on Information Technology and Applications, ICITA 2007, January 15, 2007 - January 18, 2007, Harbin, China
Lin L.; Yun F.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

In this paper a method that measures relatively positionrelationshipquickly and accurately between two vehicles both on a horizontal plane is introduced. When the linear CCD camera placed on the end of manipulator scans two point targets located on the other vehicle by virtue of the spatial intersection principle and trigonometry theorem the relative position relationship between the loading vehicles and launching ones can be gotten(i.e. the spatial coordinate parameters of x y z and the angle displacement ). At the same time the paper establishes that the measurement error of length is less than 1mm by analysis of thee rror analysis and the simulation of computer. The angle displacement is less than 3 which satisfies the technical requests. So the vehicle orientation and loading missiles can be both done at the shortest time. It meets the demand of centralization between the measurement and execution. Forboth automatic transshipment and spatial position relationship measurement the study is valuable. And the manipulator is measure device as well as executive one so that residual inherent error decreases according to identical reference principle. Therefore the measure precision can be improved greatly.

Research of automatic test technology of parameters used in a dual-CCD TV measure-system (EI CONFERENCE) 会议论文 OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
作者: Wang L.; Li Y.; Li Y.; Li Y.; Li Y.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

This paper describes a kind of automatic test technology of the parameters used in a dual-CCD TV measure-system (TV -MS) .The TV -MS is the ground control equipment of the anti-tank missile and integrates the technologies of optical machine and electronics. It is important and key component. The main technical parameters of the TV -MS are field of view zero point precision sensitivity anti-jamming ability zooming time and focus time etc. To insure the TV -MS satisfying the tactical and technical requirements and discover fault and reason a fast and accurate equipment satisfying the test technical parameters of the TV -MS is urgently needed in manufacture and service. Firstly the parameter test system converted optical signal to electronic signal implemented automatic control of the invariant illumination of parallel pipeline output. Secondly data and command delivering displaying or printing are realized by using 80C196KB. The experiment result shows that the approach of automatic testing of the Parameters used in a dual-CCD TV -MS is successful and it can be used for all tests of the functions and parameters of the TV -MS. The main innovations are to realize the fast veracious measure of technical parameters of the dual-CCD TV-MS and integrate the technologies of optics machineries and electronics. An advanced means is provided to judge the technical states find malfunctions and discover the reasons in producing and maintaining process. The equipment suited for anti-tank missile systems is given.

An algorithm of calculating the scanning start angle and the scanning angle of linear array CCD panoramic aerial camera (EI CONFERENCE) 会议论文 OAI收割
Optomechatronic Actuators, Manipulation, and Systems Control, October 1, 2006 - October 3, 2006, Boston, MA, United states
Zhou G.; Zhai L.-P.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

The scanning start angle (SSA) the scanning angle (SA) and the target slope angle (SA) are important parameters of Linear Array CCD Panoramic Aerial Camera. This paper analyzes the relationship of them and suggests that the current method of calculating SA is very difficult to be realized in engineering. It proposes an algorithm of calculating SSA and SA according to TSA. Its main characteristics are with achieving the overlap rate as a premise to calculate SSA and SA reasonably and to try to put the target into the middle of swath coverage making the coverage as wide as possible. The algorithm is very simple and is easy to be realized in engineering. The paper gives us the relationship graph between TSA and SA.