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Chinese Academy of Sciences Institutional Repositories Grid
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Quantitative spatial distribution model of site-specific loess landslides on the Heifangtai terrace, China 期刊论文  OAI收割
LANDSLIDES, 2020, 页码: DOI: 10.1080/15569543.2020.1780615
作者:  
Zhou Qi;  Xu Qiang;  Peng Dalei;  Fan Xuanmei;  Ouyang Chaojun
  |  收藏  |  浏览/下载:176/0  |  提交时间:2020/11/18
Modeling and analysis of a free spaning pipeline with randomly distributed corrosion 会议论文  OAI收割
ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010, Shanghai, China, June 6, 2010 - June 11, 2010
作者:  
Li L(李磊);  Lin M(林缅);  Lin, M.
收藏  |  浏览/下载:30/0  |  提交时间:2017/06/20
Multi straight line analytical method for estimating aquifer parameters from recovery test data 期刊论文  OAI收割
Yantu Lixue/Rock and Soil Mechanics, 2008, 卷号: 29, 期号: 12, 页码: 3246-3250
Guo; Zhou; Li; Jian-Qing1; Hong-Fei1; Yan1; 2
收藏  |  浏览/下载:17/0  |  提交时间:2011/08/19
细胞信号转导通路的参数估计 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2007
作者:  
刘太元
收藏  |  浏览/下载:43/0  |  提交时间:2015/09/02
Study on the detection sensitivity of APS star tracker (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Li J.;  Li J.;  Li J.;  Liu J.;  Liu J.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Detection sensitivity is an important parameter of star tracker  which can express detection limit of the weakest detected visual star magnitude. Detection sensitivity of APS star tracker is related to APS parameters  optical system aperture and lens permeance rate  SNR  and so on. This paper  the expressions of APS star detected signal and APS noise are given  so signal-noise ratio (SNR) of star tracker can be obtained. And based on the theory inspecting signal from noise and optimal SNR threshold detection principle  the detection sensitivity model can be obtained. The corresponding APS star tracker detection limit is obtain based on APS IBIS5 and general optical system parameter design. When SNR threshold is 8.1 which can obtain 99.9% detection probability  we can calculate that the detection sensitivity is 6.5 visual magnitude.  
Intersectant multi-target serial number fuzzy match by multi-parameters (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang Y.-J.
收藏  |  浏览/下载:169/0  |  提交时间:2013/03/25
In order to match the intersectant targets' tab when these objects separate  a kind of method that makes use of fuzzy multi-parameter to match targets is proposed. Multi-parameters include the forecasted position after targets separate  target speed  target size and geometry shape  and different parameter corresponds to different influence coefficient  evaluate the integrated matching coefficient that every observation target corresponds to forecasted target  and the corresponding relationship that matching coefficient is the biggest is the best matching result. In order to locate the position and speed of forecasted target  a new method of track forecast is proposed  firstly  Hough transform is used to the object's track before objects intersect  by this  the object's positions that the warp between forecasted location and observation location is large enough is eliminated  then least square method is used for track forecast by the remainder valid positions  and get hold of the forecasted position when objects separate. The experiment results show: when tracking the bulky objects which intersect and separate  the right identification probability of traditional least square method is 87.5%  and the right identification probability of fuzzy match by multi-parameters can attain 96%  the reliability improves in evidence.