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Parameter Estimation of 2-D Stochastic FM Model based on Two Step Estimation Procedure
Jia-Rui Cui,Qing Li,Guang-Da Hu,Zhen-Yu Lu 제어·로봇·시스템학회 2013 International Journal of Control, Automation, and Vol.11 No.3
This paper considers the problem of estimating the parameters of two-dimensional (2-D) stochastic FM models. First, the estimators of the parameters of 2-D stochastic FM model are obtained using two step estimation procedures by Kronecker product and least square method. Then, the asymptotic properties of the estimators are given. It is shown that the estimators are to be consistent and to have a distribution which converges to that of a normally distributed random vector under fairly general conditions. Finally, the performance of the proposed methods is illustrated by examples.
Asymptotical Stability for 2-D Stochastic Coupled FMII Models on Networks
Jia-Rui Cui,Qing Li,Guang-Da Hu,Zhi-Yu Tao,Zhen-Yu Lu 제어·로봇·시스템학회 2015 International Journal of Control, Automation, and Vol.13 No.6
In this paper, computable stability criteria for two dimensional stochastic coupled FMII models on networks are studied based on Kronecker product and nonnegative matrices theory. Necessary and sufficient condition for two dimensional stochastic coupled FMII models on networks is presented, this is the first time that has been proposed. Then, computable mean-square asymptotic stability criteria are derived via Kronecker product and the nonnegative matrix theory. The criteria are only sufficient conditions. Finally, illustrative examples are provided.
Development of a position sensitive CsI(Tl) crystal array
Shi, Guo-Zhu,Chen, Ruo-Fu,Chen, Kun,Shen, Ai-Hua,Zhang, Xiu-Ling,Chen, Jin-Da,Du, Cheng-Ming,Hu, Zheng-Guo,Fan, Guang-Wei Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.4
A position-sensitive CsI(Tl) crystal array coupled with the multi-anode position sensitive photomultiplier tube (PS-PMT), Hamamatsu H8500C, has been developed at the Institute of Modern Physics. An effective, fast, and economical readout circuit based on discretized positioning circuit (DPC) bridge was designed for the 64-channel multi-anode flat panel PSPMT. The horizontal and vertical position resolutions are 0.58 mm and 0.63 mm respectively for the 1.0 × 1.0 × 5.0 ㎣ CsI(Tl) array, and the horizontal and vertical position resolutions are 0.86 mm and 0.80 mm respectively for the 2.0 × 2.0 × 10.0 ㎣ CsI(Tl) array. These results show that the CsI(Tl) crystal array with low cost could be applied in the fields of medical imaging and high-resolution gamma camera.