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长春光学精密机械与物... [3]
福建物质结构研究所 [1]
武汉物理与数学研究所 [1]
中国科学院大学 [1]
上海光学精密机械研究... [1]
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期刊论文 [4]
会议论文 [3]
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Promoted clustering method for the measurement-transmitter association in sfn based passive radar systems
期刊论文
iSwitch采集
Iet radar sonar and navigation, 2016, 卷号: 10, 期号: 7, 页码: 1295-1302
作者:
Li, Xiaobo
;
Guan, Xin
;
Zhong, Lihua
;
Hu, Donghui
;
Ding, Chibiao
收藏
  |  
浏览/下载:52/0
  |  
提交时间:2019/05/09
Passive radar
Radar transmitters
Pattern clustering
Measurement-transmitter association
Sfn
Passive radar system
Single frequency network
Promoted clustering method
Association problem
Recent Advances in Crystal Growth in China: Laser, Nonlinear Optical, and Ferroelectric Crystals
期刊论文
OAI收割
Crystal Growth & Design, 2010, 卷号: 10, 期号: 11, 页码: 4672-4681
N. Ye, C. Y. Tu, X. F. Long and M. C. Hong
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  |  
浏览/下载:33/0
  |  
提交时间:2012/11/02
high curie-temperature
nd-gdvo4 single-crystal
self-sum-frequency
thermal-properties
spectroscopic properties
piezoelectric properties
klu(wo4)(2) crystals
bridgman method
cr3+-doped lasc3(bo3)(4)
nd3+-kgd(wo4)(2) crystal
An information theoretic approach to model reduction based on frequency-domain Cross-Gramian information (EI CONFERENCE)
会议论文
OAI收割
2010 8th World Congress on Intelligent Control and Automation, WCICA 2010, July 7, 2010 - July 9, 2010, Jinan, China
作者:
Zhou J.
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  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
We focused our attention on model reduction for linear time invariant (LTI) continuous time systems with single input and single output (SISO). We analyzed the strongpoint and shortcoming of an information theoretic approach called minimum information loss method for model reduction. We explained relationships between the steady-state information entropy and controllability information for the Gaussian systems. The controllability
observability and Cross-Gramian information were analyzed in the time-domain. The frequency-domain Cross-Gramian information (FCGI) was defined based on Cross-Gramian matrix containing information associated with both controllability and observability. Furthermore
a valuable application of the frequency-domain Cross-Gramian information to model reduction (FCGMIL) was developed by using the concept and properties of frequency-domain Cross-Gramian information. The performance index of FCGMIL is to minimize the frequency-domain Cross-Gramian information loss caused by eliminating the state variables with weak contributions to Cross-Gramian information over some frequency band. Two numerical examples are illustrated to verify the efficiency of FCGMIL. 2010 IEEE.
Transmission properties of multiband fss based on fractal elements (EI CONFERENCE)
会议论文
OAI收割
2010 9th International Symposium on Antennas Propagation and EM Theory, ISAPE 2010, November 29, 2010 - December 2, 2010, Guangzhou, China
作者:
Gao J.
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  |  
浏览/下载:28/0
  |  
提交时间:2013/03/25
Self-similar fractal elements that has multiband properties can be advantageously exploited to design simple
multiband FSS on single screen. In this paper
fractal Y aperture FSS has been designed using recursive technology and the periodic method of moments(PMoM) is employed to characterize the transmission properties of FSS as band-pass filters. The frequency response to the structure parameters when electromagnetic wave incident with different angles and polarizations is discussed and the numerical analysis show good correlation to the measured results. 2010 IEEE.
Composite-structure frequency selective surface with tripole elements (EI CONFERENCE)
会议论文
OAI收割
8th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2008, November 2, 2008 - November 5, 2008, Kunming, China
作者:
Gao J.
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  |  
浏览/下载:79/0
  |  
提交时间:2013/03/25
Two composite symmetry structure is proposed in this paper. Based on the integral equation method
the frequency response with large incident angle effect is analyzed. As a result of the numerical analysis
it is shown that the composite symmetry structure with single FSS screen is efficient to stabilize the drift of FSS resonant frequency with the steering of incident angle though transmission loss increased. Especially the structure that the FSS is embedded centrally in the dielectrics has better frequency characteristic with flat top and sharp skirts. The studies have indicated the versatility of the proposed structure. 2008 IEEE.
75 mW robust single frequency Yb-doped DFB fiber Bragg grating laser
期刊论文
OAI收割
chin. sci. bull., 2008, 卷号: 53, 期号: 17, 页码: 2729, 2732
陈嘉琳
;
Wang Li
;
Chang LiPing
;
Li GuoYang
;
陈柏
;
林尊琪
收藏
  |  
浏览/下载:1616/363
  |  
提交时间:2009/09/18
DFB
shielded method
post-processing method
single-frequency
Inversion of ionospheric GPS occultation data
期刊论文
OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2004, 卷号: 47, 期号: 4, 页码: 578-583
作者:
Zeng, Z
;
Hu, X
;
Zhang, XJ
;
Wan, WX
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2015/12/03
GPS/MET
dual-frequencies method
single-frequency method
ionospheric occultation