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Realization of quantum single pendulum on macroscopic level 期刊论文  OAI收割
ACTA PHYSICA SINICA, 2010, 卷号: 59, 页码: 1456-1461
作者:  
Ning Bo-Yuan;  Ma Jun-Shan;  Zhuang Jun;  Ning Xi-Jing
  |  收藏  |  浏览/下载:22/0  |  提交时间:2018/05/31
Design and image restoration research of a cubic-phase-plate system (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang J.;  Zhang J.;  Zhang J.;  Shi G.;  Zhang X.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Wave-front coding technology is a novel jointly optical and digital imaging technology which can greatly extend the depth of focus of optical systems. The image restoration process is an important part of wave-front coding technology. Using wave-front coding makes the modulation transfer function(MTF) values of the optical systems change little over a range of several times the depth of focus  which means the system MTF is quite insensitive to defocus  and there is no zero in the passband. So we can design a single filter for the restoration of images in different defocus positions. However  it's hard to avoid noise during image acquisition and transmission processes. These noises will be amplified in the image restoration  especially in the high frequency part when the MTF drop is relatively low. The restoration process significantly reduces the system signal to noise ratio this way. Aimed at the problem of noise amplification  a new algorithm was proposed which incorporated wavelet denoising into the iterative steps of Lucy-Richardson algorithm. Better restoration results were obtained through the new algorithm  effectively solving the noise amplification problem of original LR algorithm. Two sets of identical triplet imaging systems were designed  in one of which the cubic-phase-plate was added. Imaging experiments of the manufactured systems were carried  and the images of a traditional system and a wave-front coded system before and after decoding were compared. The results show that the designed wave-front coded system can extend the depth of focus by 40 times compared with the traditional system while maintaining the light flux and the image plane resolution. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Graph fitting test method for the interpolation error of Moire fringe (EI CONFERENCE) 会议论文  OAI收割
9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China
作者:  
Sun Y.;  Sun Y.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
In order to realize the fast test for the interpolation error  the graph fitting test method for the interpolation error of Moire fringe is put forward in this paper. Firstly  the triangular wave Moire fringe photoelectric signal of the encoder whose phase difference is 90 are sampled to get the Lissajous graph of the two signals. Secondly  the single wave represented by the founded subsection function is used to fit the practical Moire fringe Lissajous graph. Then  the fitting result is tested to verify whether it satisfies the accuracy requirement. Lastly  the founded subsection function instead of the practical wave function is used to calculate the interpolation error. Using the graph fitting method to sample the Moire fringe single of 15-bits photoelectric encoder to get the interpolation error curve  the tested maximum interpolation error is 70" and the minimum error is - 69". Comparing with the interpolation error which is received from traditional test method  the change trend of the interpolation error curve is similar  and peak-peak value is almost equality. The results of experiment indicate that: the equipment is convenient and the examination method is efficient and feasible. The measure speed is fast and the manifestation result is intuitionistic. The system can be used in the working field. The method can avoid the speed influence and realize the dynamic interpolation error measure  which is significant for the research of encoder's dynamic accuracy characteristics. 2009 IEEE.  
Time-evolution of a trapped Bose-Einstein condensation in a quantum cavity (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang C.;  Zhang L.;  Zhang L.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
Resonant continuum in the relativistic mean-field theory 期刊论文  OAI收割
COMMUNICATIONS IN THEORETICAL PHYSICS, 2002, 卷号: 38, 页码: 347-350
作者:  
Cao, LG;  Ma, ZY
  |  收藏  |  浏览/下载:19/0  |  提交时间:2018/07/16
Analytic solution of ground state for Coulomb plus linear potential 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2002, 卷号: 26, 期号: 4, 页码: #REF!
作者:  
Zhao WQ(赵维勤);  Ju ZS(鞠长胜);  Zhao, WQ;  Ju, CS
收藏  |  浏览/下载:24/0  |  提交时间:2016/04/13
Double-wave function of rlc circuit after quantization 期刊论文  iSwitch采集
Acta physica sinica, 2001, 卷号: 50, 期号: 6, 页码: 1011-1014
作者:  
Long, CY;  Liu, B
收藏  |  浏览/下载:17/0  |  提交时间:2019/05/12
Double-wave function of RLC circuit after quantization 期刊论文  OAI收割
acta physica sinica, 2001, 卷号: 50, 期号: 6, 页码: 1011-1014
Long CY; Liu B
收藏  |  浏览/下载:138/14  |  提交时间:2010/08/12
HOLES IN A 2-DIMENSIONAL QUANTUM ANTIFERROMAGNET 期刊论文  OAI收割
CHINESE JOURNAL OF PHYSICS, 1993, 卷号: 31, 期号: 5, 页码: 579-616
作者:  
LI, YM;  YU, L
  |  收藏  |  浏览/下载:17/0  |  提交时间:2012/08/29