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清华大学 [1]
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长春光学精密机械与物... [1]
四川大学 [1]
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期刊论文 [4]
会议论文 [1]
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2022 [1]
2017 [2]
2013 [1]
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A Novel NMF Guided for Hyperspectral Unmixing From Incomplete and Noisy Data
期刊论文
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 卷号: 60
作者:
Dong, Le
;
Lu, Xiaoqiang
;
Liu, Ganchao
;
Yuan, Yuan
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浏览/下载:43/0
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提交时间:2022/01/18
Image reconstruction
Hyperspectral imaging
Noise measurement
Gaussian noise
Interference
Stability analysis
Sensors
Hyperspectral unmixing (HU)
image reconstruction
nonnegative matrix factorization (NMF)
spatial-spectral information
Method of synchronization measurement via spatial-spectral interference in coherent combination of multi-channel ultra-short pulses
期刊论文
LASER PHYSICS, 2017, 卷号: 27
作者:
Li, Z. L.
;
Zuo, Y. L.
;
Wu, Z. H.
;
Wang, X.
;
Mu, J.
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浏览/下载:7/0
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提交时间:2019/11/26
coherent combination
spatial-spectral interference
synchronization measurement
femtosecond pulse
Analysis of wavelength dependence of mode in high power fiber laser
期刊论文
ACTA PHYSICA SINICA, 2017, 卷号: Vol.66 No.19
作者:
Liang, JC
;
Feng, GY
;
Zhang, SL
;
Lan, B
;
Zhou, SH
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浏览/下载:3/0
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提交时间:2019/02/25
fiber modes
F-2 method based on spatial and spectral Fourier transform
group delay difference
spectral interference
Advanced astigmatism-corrected tandem Wadsworth mounting for small-scale spectral broadband imaging spectrometer (EI CONFERENCE)
会议论文
Lei Y.
;
Lin G.-Y.
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浏览/下载:30/0
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提交时间:2013/03/25
Tandem gratings of double-dispersion mount make it possible to design an imaging spectrometer for the weak light observation with high spatial resolution
high spectral resolution
and high optical transmission efficiency. The traditional tandem Wadsworth mounting is originally designed to match the coaxial telescope and large-scale imaging spectrometer. When it is used to connect the off-axis telescope such as off-axis parabolic mirror
it presents lower imaging quality than to connect the coaxial telescope. It may also introduce interference among the detector and the optical elements as it is applied to the short focal length and small-scale spectrometer in a close volume by satellite. An advanced tandem Wadsworth mounting has been investigated to deal with the situation. The Wadsworth astigmatism-corrected mounting condition for which is expressed as the distance between the second concave grating and the imaging plane is calculated. Then the optimum arrangement for the first plane grating and the second concave grating
which make the anterior Wadsworth condition fulfilling each wavelength
is analyzed by the geometric and first order differential calculation. These two arrangements comprise the advanced Wadsworth mounting condition. The spectral resolution has also been calculated by these conditions. An example designed by the optimum theory proves that the advanced tandem Wadsworth mounting performs excellently in spectral broadband. 2012 Optical Society of America.
A study on the multiplication technique of nano-moire Fringe
期刊论文
2010, 2010
Liu Zhanwei
;
Xie Huimin
;
Fang Daining
;
Dai Fulong
;
Wang Weining
;
Fang Yan
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