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Study on performance variable scale evaluation method of reflection laser confocal microscopy
期刊论文
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2019, 卷号: 48, 期号: 3
作者:
F.Wang
;
Q.Sun
;
M.Dai
;
X.Liu
;
C.Wang
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2020/08/24
Signal to noise ratio,Aberrations,Confocal microscopy,Function evaluation,Functions,Power spectral density,Spectral density,Testing,Wavefronts
Bias-Reduced Moment Estimators of Population Spectral Distribution and Their Applications
专著章节
出自: BIG AND COMPLEX DATA ANALYSIS: METHODOLOGIES AND APPLICATIONS, GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND:SPRINGER INTERNATIONAL PUBLISHING AG, 2017, 页码: 103-119
作者:
Qin, Yingli
;
Li, Weiming
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/08/22
Asymptotically normal
Consistency
Covariance matrix
High-dimension
Hypothesis testing
Moment estimator
Population spectral distribution
Across-wind dynamic loads on L-shaped tall buildings
期刊论文
Wind and Structures, An International Journal, 2016, 卷号: 23, 期号: 5, 页码: 385-403
作者:
Li, Yi
;
Li, Qiu-Sheng*
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2019/12/04
Across-wind load
Lift coefficient
Power spectral density
Tall buildings
Wind tunnel testing
Across-wind dynamic loads on L-shaped tall buildings
期刊论文
Wind and Structures, 2016, 卷号: Vol.23 No.5, 页码: 385-403
作者:
Li, Yi
;
Li, Qiu-Sheng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/12/31
tall buildings
wind tunnel testing
across-wind load
lift coefficient
power spectral density
A Practical Guide to Discrete Wavelet Decomposition of Hydrologic Time Series
SCI/SSCI论文
2012
Sang Y. F.
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  |  
浏览/下载:22/0
  |  
提交时间:2014/12/24
Hydrologic series analysis
Discrete wavelet decomposition
Reference
energy function
Significance testing
Noise
Uncertainty
rainfall-runoff
singularity detection
spectral-analysis
neural-networks
climate-change
model
multiresolution
identification
variance
scales
An Accurate and Cost-Effective Jitter Measurement Technique Using a Single Test Frequency
期刊论文
JOURNAL OF ELECTRONIC TESTING-THEORY AND APPLICATIONS, 2012, 卷号: 28, 期号: [db:dc_citation_issue], 页码: 733-743
作者:
Wu, Minshun
;
Chen, Degang
;
Duan, Jingbo
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2019/12/10
Spectral testing
Fast Fourier transform (FFT)
Jitter
Analog-to-digital converter (ADC)
New Spectral Leakage-Removing Method for Spectral Testing of Approximate Sinusoidal Signals
期刊论文
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2012, 卷号: 61, 期号: [db:dc_citation_issue], 页码: 1296-1306
作者:
Wu, Minshun
;
Chen, Degang
;
Chen, Guican
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  |  
浏览/下载:2/0
  |  
提交时间:2019/12/10
fundamental identification and replacement technique
noncoherent sampling
spectral testing
Fast Fourier transform(FFT)
spectral leakage
Rapid evaluation of tile-wall bonding integrity using multiple-head impact acoustic method
期刊论文
http://dx.doi.org/10.1016/j.ndteint.2011.01.004, 2011
Luk, B. L.
;
Liu, K. P.
;
Tong, F.
;
童峰
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  |  
浏览/下载:3/0
  |  
提交时间:2013/12/12
Impact acoustics
Nondestructive testing
Tile-wall inspection
Spectral peak extraction
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.
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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.
A Faster Method for Accurate Spectral Testing without Requiring Coherent Sampling
会议论文
作者:
Wu, Minshun
;
Chen, Degang
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/12/10
coherent sampling
Discrete Fourier Transform
spectral testing
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