Three-dimensional phase boundary estimation in sedimentation process using electrical impedance tomography with the aid of unscented Kalman filter
Three-dimensional phase boundary estimation in sedimentation process using electrical impedance tomography with the aid of unscented Kalman filter
复制标题
借助无迹卡尔曼滤波器利用电阻抗断层扫描估计沉积过程中的三维相界
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
K. Kim
中科院分区：
文献类型：
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作者：
A. K. Khambampati;A. Rashid;Jeong Seong Lee;Sin Kim;K. Kim
这项工作与使用电阻抗断层扫描进行沉积监测中的界面相边界估计有关。假设流体沉降成由尖锐界面边界分隔的三个不同相。相界面的时间演化提供了有关沉降过程的重要信息，可用于控制和优化沉降过程。相界面位置及其相应的电导率估计被视为随机非线性状态估计问题，借助无迹卡尔曼滤波器在线估计非平稳界面相边界（状态）。进行数值实验来评估所提出方法的性能，并与传统的扩展卡尔曼滤波器进行比较。
This work is related to interfacial phase bounadry estimation in sedimentation monitoring using electrical impedance tomography. The fluid is assumed to settle into three different phases separated by sharp interfacial boundary. The time evolution of the phase interface gives important information about the sedimentation process which can be used to control and optimize the sedimentation process. Phase interface location and their corresponding conductivities estimation is treated as a stochastic nonlinear state estimation problem with the nonstationary interfacial phase boundary (state) being estimated online with the aid of unscented Kalman filter. Numerical experiments are performed to evaluate the performance of the proposed approach and is compared with conventional extended Kalman filter.