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长春光学精密机械与... [17]
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会议论文 [9]
期刊论文 [8]
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2019 [4]
2018 [4]
2012 [1]
2011 [1]
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2006 [4]
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专题:长春光学精密机械与物理研究所
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Space object detecting ability improvement method based on optimal principle
期刊论文
Optoelectronics Letters, 2019, 卷号: 15, 期号: 6, 页码: 459-462
作者:
Y.Gao
;
J.-y.Zhao
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浏览/下载:1/0
  |  
提交时间:2020/08/24
Signal to noise ratio,Cost effectiveness,Object detection,Optical systems,Space debris
Vehicular Daytime High-resolution Imaging System Based on Phase-diversity Technology
期刊论文
Guangzi Xuebao/Acta Photonica Sinica, 2019, 卷号: 48, 期号: 3
作者:
M.Ming
;
T.Chen
;
T.-S.Xu
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  |  
浏览/下载:2/0
  |  
提交时间:2020/08/24
Image resolution,Diffraction,Imaging systems,Infrared devices,Infrared radiation,Object detection,Optical design,Optical telescopes,Phase measurement,Space telescopes,Wavefronts
Space Target Detection in Complicated Situations for Wide-Field Surveillance
期刊论文
Ieee Access, 2019, 卷号: 7, 页码: 123658-123670
作者:
M.Y.Li
;
C.X.Yan
;
C.H.Hu
;
C.Y.Liu
;
L.Z.Xu
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  |  
浏览/下载:2/0
  |  
提交时间:2020/08/24
Space target detection,wide-field surveillance,complicated situations,spatiotemporal pipeline,multistage hypothesis testing (MHT),domain awareness,debris detection,tracking,algorithm,objects,Computer Science,Engineering,Telecommunications
Non-Data-Aided Cycle Slip Self-Correcting Carrier Phase Estimation for QPSK Modulation Format of Coherent Wireless Optical Communication System
期刊论文
Ieee Access, 2019, 卷号: 7, 页码: 110451-110462
作者:
Y.Wang
;
Z.Y.Wu
;
X.L.Li
;
T.W.Geng
;
S.Ma
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2020/08/24
Coherent detection,cycle slip,free-space optical communication,phase,estimation,performance,algorithms,capacity,Computer Science,Engineering,Telecommunications
A Mixed Property-Based Automatic Shadow Detection Approach for VHR Multispectral Remote Sensing Images
期刊论文
APPLIED SCIENCES-BASEL, 2018, 卷号: 8, 期号: 10, 页码: 28
作者:
Wen, Ming
;
Lan, Taiji
;
Li, Xiangzhi
;
Huang, Liang
;
Hu, Changhong
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  |  
浏览/下载:30/0
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提交时间:2019/08/26
invariant color space
multispectral images
shadow detection
shadow omission
threshold
vegetation misclassification
very high-resolution
A Comparison: Different DCNN Models for Intelligent Object Detection in Remote Sensing Images
期刊论文
Neural Processing Letters, 2018, 卷号: 0, 页码: 2019-01-11
作者:
Ding, Peng
;
Zhang, Ye
;
Jia, Ping
;
Chang, Xu-ling
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  |  
浏览/下载:8/0
  |  
提交时间:2019/09/17
Remote sensing
Computer vision
Convolution
Deep learning
Deep neural networks
Neural networks
Object detection
Object recognition
Space optics
High Precision Position Measurement Method for Laguerre-Gaussian Beams Using a Quadrant Detector
期刊论文
Sensors, 2018, 卷号: 18, 期号: 11, 页码: 11
作者:
Li, Q.
;
Wu, J. B.
;
Chen, Y. S.
;
Wang, J. Y.
;
Gao, S. J.
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  |  
浏览/下载:5/0
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提交时间:2019/09/17
position measurement method
quadrant detector
Laguerre-Gaussian beams
least square method
effective radius
detection
free-space
propagation
improvement
angle
Chemistry
Electrochemistry
Instruments & Instrumentation
Study on Matched Filtering Process Based on Long-Range Pulsed Laser Heterodyne Detection
期刊论文
Acta Optica Sinica, 2018, 卷号: 38, 期号: 1
作者:
Wu Shisong, 吴世松
;
Zhang Heyong, 张合勇
;
Wang Tingfeng, 王挺峰
;
Guo Jin, 郭劲
;
Yan Chunhui, 晏春回
收藏
  |  
浏览/下载:1/0
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提交时间:2019/09/17
Heterodyne detection
Heterodyning
Intelligent systems
Matched filters
Missiles
Monte Carlo methods
Pulsed lasers
Radar cross section
Remote sensing
Space stations
Eight-neighborhood based background modeling (EI CONFERENCE)
会议论文
2012 2nd International Conference on Materials Science and Information Technology, MSIT 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaan, China
Yan L.
;
Ming D.
;
Lei J.
收藏
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浏览/下载:11/0
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提交时间:2013/03/25
In order to solve the Gaussian kernel density-based background modeling
we propose a background modeling method based on an 8-neighborhood pixels sample set. In this method
we use the target pixel and its surrounding 8-neighborhood pixels to analyze whether it is included in the background or in the foreground sample space. Experimental results show that the method can judge the object as the background interference caused by the cyclical movement. By practical verification
the algorithm of the background modeling can full meet the requirements of the target detection algorithm. (2012) Trans Tech Publications
Switzerland.
Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE)
会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yu L.
;
Wang S.-R.
;
Lin G.-Y.
收藏
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浏览/下载:25/0
  |  
提交时间:2013/03/25
Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding
the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror
a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror
coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected
and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system
a deuterium lamp
a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.
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