中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Higher order monotonicity and submodularity of influence in social networks: From local to global 期刊论文  OAI收割
INFORMATION AND COMPUTATION, 2022, 卷号: 285, 页码: 17
作者:  
Chen, Wei;  Li, Qiang;  Shan, Xiaohan;  Sun, Xiaoming;  Zhang, Jialin
  |  收藏  |  浏览/下载:13/0  |  提交时间:2023/07/12
中国环境基准共性技术体系初探 学位论文  OAI收割
博士后, 北京: 中国科学院研究生院, 2012
朱建刚
收藏  |  浏览/下载:56/0  |  提交时间:2014/05/14
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:28/0  |  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.