中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共13条,第1-10条 帮助

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Evolutionary and ecological factors structure a plant-bumblebee network in a biodiversity hotspot, the Himalaya-Hengduan Mountains 期刊论文  OAI收割
FUNCTIONAL ECOLOGY, 2021, 卷号: 35, 期号: 11, 页码: 2523-2535
作者:  
Liang,Huan;  Zhao,Yan-Hui;  Rafferty,Nicole E.;  Ren,Zong-Xin;  Zhong,Li
  |  收藏  |  浏览/下载:79/0  |  提交时间:2022/04/02
Compact optical image amplifier pumped by a sub-nanosecond Nd:YAG microlaser 期刊论文  OAI收割
APPLIED OPTICS, 2018, 卷号: 57, 期号: 10, 页码: 2622-2626
作者:  
Liu, Lei;  Wang, Hongyan;  Ning, Yu;  Ren, Ge;  Yang, Yi
  |  收藏  |  浏览/下载:59/0  |  提交时间:2019/08/23
A novel super-resolution imaging method based on TDI CCD charge transfer and random exposure 期刊论文  OAI收割
Optics Communications, 2018, 卷号: 426, 页码: 170-181
作者:  
Li, Y. H.;  Wang, X. D.;  Wang, Z.
  |  收藏  |  浏览/下载:16/0  |  提交时间:2019/09/17
A non-dyadic Curvelet transform based least-squares matching algorithm and its application 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 4, 页码: 1340-1349
作者:  
Yuan Yan-Hua;  Wang Yi-Bo;  Liu Yi-Ke;  Chang Xu
  |  收藏  |  浏览/下载:12/0  |  提交时间:2018/09/26
A non-dyadic Curvelet transform based least-squares matching algorithm and its application 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 4, 页码: 1340-1349
作者:  
Yuan Yan-Hua;  Wang Yi-Bo;  Liu Yi-Ke;  Chang Xu
  |  收藏  |  浏览/下载:13/0  |  提交时间:2018/09/26
Tree Structure Matching Pursuit based on Gaussian Scale Mixtures model 会议论文  OAI收割
Applications of Digital Image Processing Xxxiv
Liu, Peng; Liu, Zhiwen; Wei, Jingbo; Liu, Dingsheng
收藏  |  浏览/下载:27/0  |  提交时间:2014/12/07
Some Observations on the Performance of the Signal Matching Technique in Assessment of Pile Integrity 期刊论文  OAI收割
JOURNAL OF NONDESTRUCTIVE EVALUATION, 2011, 卷号: 30, 期号: 4, 页码: 246-258
作者:  
Wei, Chang-Fu;  Chai, Hua-You;  Yang, Yun-Ming;  Phoon, Kok-Kwang
  |  收藏  |  浏览/下载:20/0  |  提交时间:2018/06/05
Design of high-speed low-noise pre-amplifier for CCD camera (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang S.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
Pre-amplifier circuit is critical for the noise performance of the high speed CCD camera. Its main functions are amplification and impedance transform. The high speed and low noise pre-amplifier of CCD camera is discussed and designed in this paper. The high speed and low noise operational amplifier OPA842 is adopted as the main part. The gain-set resistors for the amplifier are designed optimally. The different precision gain-set resistors are swept using Monte Carlo method. CCD video signal which has high DC offset voltage is AC coupled to the amplifier. The output signal of the amplifier is source terminated using 50 ohms matching resistor so as to transmit the video signal through coaxial cable. When the circuit works in high speed  the PCB will have important effect to circuit performance and can even cause the amplifier unstable due to the parasitic problem of PCB. So the parasitic model of the PCB is established and the PCB layout design issues are also presented. The design result shows that the pre-amplifier can be used in the camera whose pixel rate could be up to 40 MHz and its input referred noise density is about 3 nV/Hz 1/2. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Point pattern matching based on manifold embedding 会议论文  OAI收割
2nd International Conference on Image Analysis and Signal Processing, IASP'2010,, Xiamen, China, April 12, 2010 - April 14,2010
Yan, Weidong; Tian, Zheng; Wen, Jinhuan; Pan, Lulu
收藏  |  浏览/下载:19/0  |  提交时间:2014/12/07
Automatic relative radiometric normalization algorithm based on pseudoinvariant neighborhood 会议论文  OAI收割
1st International Congress on Image and Signal Processing, CISP 2008,, Sanya, Hainan, China, May 27, 2008 - May 30,2008
Xiaolian, Deng; Changyao, Wang; Bangjun, Lei
收藏  |  浏览/下载:11/0  |  提交时间:2014/12/07