中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [2]
南京天文光学技术研究... [1]
采集方式
OAI收割 [3]
内容类型
会议论文 [3]
发表日期
2014 [1]
2007 [1]
2006 [1]
学科主题
天文技术与方法 [1]
终端仪器::天文光谱... [1]
筛选
浏览/检索结果:
共3条,第1-3条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Test of Multi-object Exoplanet Search Spectral Interferometer
会议论文
OAI收割
Montréal, Quebec, Canada, 2014-6-22
作者:
Zhongwen Hu
;
Yongtian Zhu
;
Yi Chen
;
Kai Zhang
;
Lei Wang
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2015/03/13
Exoplanet detection
Radial velocity measurement
Multi-object observation
Fixed delay Interferometer
Interference spectrum
Design of high-resolution fourier transform lens (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 L.
;
Zhang L.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
With the development of optical information processing
high-resolution Fourier transform lens has often been used in holographic data storage system
spatial filtering and observation of particles. This paper studies the optical design method of high-resolution Fourier transform optical lenses system
which could be used in particles observation and holographic data storage system. According to Fourier transform relation between object and its frequency plane and the theory of geometrical optics
the system with working wavelength 532nm and resolution 3 m was designed based on ZEMAX. A multi-configuration method was adopted to optimize the system's lenses. In the optical system
a diaphragm was placed at the system's spectrum plane and the system demanded a low vacuum to cut down the influences of atmosphere and other particles. The result of finite element analysis indicated that the influences of vacuum pumping to optics spacing and mirror surface shape very minor
and the imaging quality not being affected. This system has many advantages
such as simple structure
good image quality and a high resolution of 3 m. So it has a wide application prospect and can be used both in holographic data storage system and particles observation.
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:152/0
  |  
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.