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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
西安光学精密机械研究... [4]
地理科学与资源研究所 [2]
长春光学精密机械与物... [2]
国家空间科学中心 [1]
遥感与数字地球研究所 [1]
自动化研究所 [1]
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OAI收割 [12]
内容类型
期刊论文 [7]
会议论文 [5]
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2022 [2]
2019 [1]
2018 [1]
2013 [2]
2012 [2]
2010 [2]
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学科主题
optics [1]
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Comparison of Multi-Methods for Identifying Maize Phenology Using PhenoCams
期刊论文
OAI收割
REMOTE SENSING, 2022, 卷号: 14, 期号: 2, 页码: 18
作者:
  |  
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2022/09/21
spectral and textural indices
maize phenological extraction
filtering methods
Comparison of Multi-Methods for Identifying Maize Phenology Using PhenoCams
期刊论文
OAI收割
REMOTE SENSING, 2022, 卷号: 14, 期号: 2, 页码: 18
作者:
Guo, Yahui
;
Chen, Shouzhi
;
Fu, Yongshuo H.
;
Xiao, Yi
;
Wu, Wenxiang
  |  
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2022/09/21
spectral and textural indices
maize phenological extraction
filtering methods
Analysis and design of ground-based photoelectric detection system for star observation during the daytime
会议论文
OAI收割
Beijing, China, 2019-07-07
作者:
Yu, Yue
;
Tian, Yan
;
Hao, Wei
;
Li, Zhe
  |  
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2020/03/04
Star Detection
Photoelectric System
Spectral Filtering
Threshold
Doppler-robust high-spectrum-efficiency VCM-OFDM scheme for low Earth orbit satellites broadband data transmission
期刊论文
OAI收割
IET COMMUNICATIONS, 2018, 卷号: 12, 期号: 1, 页码: 35-43
作者:
Li, Jionghui
;
Xiong, Weiming
;
Sun, Geng
;
Wang, Zhugang
;
Huang, Yonghui
  |  
收藏
  |  
浏览/下载:74/0
  |  
提交时间:2018/03/02
Satellite Ground Stations
Satellite Links
Radio Receivers
Radio Transmitters
Ofdm Modulation
Modulation Coding
Doppler Shift
Filtering Theory
Doppler-robust High-spectrum-efficiency Vcm-ofdm Scheme
Low Earth Orbit Satellites Broadband Data Transmission
High-efficiency Satellite-ground Downlink Data Transmission System
Limited Spectrum Resource
Dynamic Link Conditions
Orbital Motion
Leo Satellite
Variable Coding Modulated Orthogonal Frequency Division Multiplexing
Satellite On-board Transmitter
Ground Station Receiver
Filtered-ofdm Signal
Adjustable Codmod
Spectral Efficiency
Physical Layer Frame Structure
Doppler Frequency Shift Compensation
Future Gigabit X-band Reliable Satellite-ground Downlink Transmissions
Theoretical analysis of scanning spectral filter method for coherent intensity contrast enhancement in femtosecond laser system
期刊论文
OAI收割
acta physica sinica, 2013, 卷号: 62, 期号: 15
作者:
Ma Zai-Ru
;
Sui Zhan
;
Zhou Gui-Yong
;
Sun Nian-Chun
;
Wang Yi-Shan
收藏
  |  
浏览/下载:41/0
  |  
提交时间:2015/06/09
ultrafast optics
coherent pulse contrast
spectral scanning filtering
short time Fourier transformation
Top-down spatiotemporal saliency detection using spectral filtering
会议论文
OAI收割
5th International Conference on Digital Image Processing (ICDIP), Beijing, PEOPLES R CHINA, APR 21-22, 2013
作者:
Li, Wanyi
;
Wang, Peng
;
Qiao, Hong
;
Li, WY
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2017/01/13
Visual attention
Top-down spatiotemporal saliency
Spectral filtering
Theoretical Analysis on scanning spectral filter based on the bi-refraction electro-optical interferometer for pulse contrast improvement in femtosecond laser
期刊论文
OAI收割
optics communications, 2012, 卷号: 285, 期号: 12, 页码: 2883-2888
作者:
Ma, Zairu
;
Sui, Zhan
;
Feng, Guoying
;
Sun, Nianchun
;
Wang, Yishan
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2012/09/04
Ultrafast optics
Wavelength filtering devices
Spectral scanning filter
Theoretical analysis on scanning spectral filter method for signal-noise-ratio improvment in femtosecond laser system
期刊论文
OAI收割
acta physica sinica, 2012, 卷号: 61, 期号: 7
作者:
Ma Aai-Ru
;
Sui Zhan
;
Feng Guo-Ying
;
Sun Nian-Chun
;
Wang Yi-Shan
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2015/06/30
ultrafast optics
ultrafast technology
spectral scanning filtering
short time fourier transform
Electro-optical imaging system identification using pseudo-random binary pattern (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Le Y.
;
Jian W.
;
Jianzhong Z.
;
Qiang S.
;
Jianzhuo L.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
A method using pseudo-random binary pattern is developed for electro-optical imaging system identification. The imaging system is taken as a stable
linear
time-invariant
and causal filter
and its transfer function is measured through the pseudo-random binary sequence impulse responses identification. A digital mirror device (DMD) light projector is developed as the target generator
and wavelet thresholding is used to denoise the captured image. Pre-filtering spectral estimation algorithm with adaptive parameter selection is also proposed for the identification process
overcoming the challenge brought by the size limit derived from the optical isoplantic region. Simulations and experiments are presented to show the effectiveness of the proposed method.0-64. 2010 IEEE.
White-light spectral scanning interferometry for surface measurement system (EI CONFERENCE)
会议论文
OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
作者:
Wang C.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
The paper introduces the white-light spectral scanning interferometry for surface measurement. This interferometry can be used to measure the roughness of both smooth surfaces and those with large step heights. This real-time surface measurement can be achieved using acousto-optic tuneable filtering (AOTF) technique without mechanical scanning. At first
the structure and principle of this interferometry is introduced. Then the algorithm of the surface roughness measurement is proposed. What's more
the experiment with standard test piece is conducted. Compared with the traditional laser-light interferometry
the data shows that the proposed method has a higher accuracy which is proved to be nano-scale. A conclusion is given at last in which the superiorities and the limitations of the proposed system were discussed. 2010 SPIE.