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Study of spatial signal transduction in bistable switches 期刊论文  OAI收割
FRONTIERS OF PHYSICS, 2016, 卷号: 11, 期号: 5
作者:  
Zhao Qi;  Yao ChengGui;  Tang Jun;  Liu LiWei
  |  收藏  |  浏览/下载:19/0  |  提交时间:2021/02/02
Study of spatial signal transduction in bistable switches 期刊论文  OAI收割
FRONTIERS OF PHYSICS, 2016, 卷号: 11, 期号: 5
作者:  
  |  收藏  |  浏览/下载:20/0  |  提交时间:2021/02/02
Nonlinear Estimation of Coherent Phase Vibrations for Statistical Signals through Multivariable Analyses 会议论文  OAI收割
7th International Conference on Digital Image Processing (ICDIP), Los Angeles, CA, 2015-04-09
作者:  
Deng LH(邓林华);  Deng LH(邓林华)
收藏  |  浏览/下载:25/0  |  提交时间:2016/04/06
Chirp estimation of PZT for integrating-bucket method (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang J.;  Liu W.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
The nonlinear response of the PZT for the integrating bucket method is studied by our proposed method: discrete chirp Fourier transform (DCFT) and maximum likelihood estimation (MLE) techniques for the integrating bucket method. Based on the signal processing theory  the intensity obtained from CCD is processed by the DCFT and thus nonlinear response and chirp coefficient of the PZT can be coarsely estimated. This is followed by the MLE method  in which an iterative optimization process is complemented for accurately estimating the nonlinear response and chirp coefficient of the PZT. One key advantage of the proposed method is that not only the nonlinear response and chirp coefficient of the PZT can be acquired  but also initial phase acquired. Our method is tested by simulating conditions under which a certain magnitude of nonlinearity is assumed. Nonlinear response attained by the DCFT is compared to that attained by the MLE  and a difference between the actual nonlinear response of the PZT and our accurate estimation by the proposed method is revealed. Several factors that will have influence on the nonlinear response of the PZT are discussed. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Signal processing for the annual runoff process By wavelet and R/S analysis: A case Study of the Tarim headwater basin 会议论文  OAI收割
9th International Conference on Signal Processing, ICSP, Beijing, China, 2008
Xu; Jianhua1; Chen; Yaning2; Li; Weihong2; Dong; Shan1
收藏  |  浏览/下载:31/0  |  提交时间:2011/08/23
Using one-dimensional nonlinear photonic crystal for dynamical addressing optical interconnection (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Li C.;  Wang W.;  Wang W.;  Li C.;  Li C.
收藏  |  浏览/下载:39/0  |  提交时间:2013/03/25
Optical interconnection is the key technique of high-speed optical information process and optical communication. A lot of approaches for optical interconnection have been proposed since Goodman in Stanford University firstly proposed the optical interconnection for very large scale integrated circuits technology. A dynamical addressing device for optical interconnection was designed and fabricated in this paper. This optical device is based on one-dimensional nonlinear photonic crystal made on the planar waveguide. The nonlinear materials ZnS and ZnSe  which have large nonlinear refractive index coefficients  were alternately deposited on the waveguide to form one-dimensional photonic crystal. The Bragg condition is changed when the input power of the control light increased due to the nonlinear characters of the materials  thus the reflective angle of the signal light can be changed with the input power change of the control light. In our experiment  when increasing the power density of control light from 0 to 2.60X105W/cm 2  the angle of the signal beam can be changed about 20. The interconnection characteristics were investigated in theory and in experiment. The testing data agree well with theoretical predictions. This kind of devices is promising to use in the all-optical interconnection  optical information processing and optical communication.