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An analog modulated simulation source for X-ray pulsar-based navigation 期刊论文  OAI收割
acta physica sinica, 2013, 卷号: 62, 期号: 11
作者:  
Zhou Feng;  Wu Guang-Min;  Zhao Bao-Sheng;  Sheng Li-Zhi;  Song Juan
收藏  |  浏览/下载:28/0  |  提交时间:2015/06/09
Micro assembled fourier transform spectrometer (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Liang J.-Q.;  Zhang J.;  Zhang J.;  Zhang J.;  Wang B.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
With the trend of minimization of Fourier transform spectrometer (FTS) which is particularly pronounced in many applications  a model of a micro FTS with no moving parts is proposed and analyzed. During analyzng  the gradients which mainly introduce phase error are accounted. Based on these assumptions and the improved Mertz phase correcting method  the spectrum of signal is simulated with real extended light source. The resolution can be up to 3.43nm@800nm  with high signal-to-noise ratio (SNR) limiting resolving ability 6.8dB. In addition  the fabrication method of components are illuminated and demonstrated  which can not only make it bear some advantages over conventional micro dispersive spectrometers  but also afford some new concepts on the design of spectrometers with improved performance. 2009 SPIE.  
Monte Carlo simulation of light propagation in human tissue models (EI CONFERENCE) 会议论文  OAI收割
3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009, June 11, 2009 - June 13, 2009, Beijing, China
作者:  
Wang Z.;  Wang L.;  Wang L.;  Wang L.;  Wang Z.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
In this paper  in order to be more sensitive to the volumetric changes of capillaries in the skin  the photon propagation process in human brain tissue and skin tissue with various source and detector separation distances were simulated based on the Monte Carlo method. The human brain model and the skin model that were used in our experiments have five layers and seven layers  the separation distance of source and detector should be approximately eight millimeters. Future work was discussed at the end of the paper. 2009 IEEE.  respectively. The backscattered intensity from every layer of the human tissue model was obtained by marking the deepest layer that every photon can reach. The simulation results of brain model indicated that the source-detector separation distance should be selected at three centimeters for studies on the actions of the brain nerve cells  
Design of a scene simulator in land-based aerospace lab with the man-made light source system based on quantum theory (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Devices and Integration II, November 12, 2007 - November 15, 2007, Beijing, China
作者:  
Fang W.;  Yi W.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
The paper presents a method with the technique of combination filtering of spectrum and the technique of DSP control for the simulation and recognition of the spontaneously lightening object and stellar map in the universe. The magnitude and the spectrum of a star can be simulated in a wide dynamic range. We established the mathematical models of the Vega's visible light spectrum and luminous flux density. Tungsten-halogen lamp as a light source is used to fit the linear light of the spontaneously lightening object in the universe. Through the experiment  it shows that the more sub-channels there are while filtering spectrum in the visible spectrum  and the more degrees the variable neutral density filters and the narrow-band attenuators have  more close to the actual spectrum the simulated spectrum is. It is proved that using the PID technique is beneficial to the output of the accurate and steady radiation from the light sources. The experiment shows that the using of this method can get perfect result in fitting and simulating the spectrum  magnitude and the stellar map of the spontaneously lightening object . The analysis of the consistent result and the experimental error is also discussed in detail in this paper.  
Rupture process of the July 11, 2004, Tibet (M-w 6.2) earthquake 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2005, 卷号: 48, 期号: 4, 页码: 843-850
作者:  
Li, J;  Wang, WM;  Zhao, LF;  Yao, ZX
  |  收藏  |  浏览/下载:18/0  |  提交时间:2018/09/26