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Electronic capacitance tomography based on multiple linear regression and regularization
Author(s): 
Pages: 32-36
Year: Issue:  12
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  电容层析成像有限元多元线性回归正则化;
Abstract: 电容层析成像(ECT)是监测多相流动的一种新技术,其主要技术难点在于克服反演过程中的不适定性,快速而又精确的重建图像.本文提出了一种利用有限元(FEM)以及多元线性回归的方法(MLR)建立ECT系统正向模型,用正则化方法解决ECT系统图像重建这一不适定性问题的图像重建算法,即通过先验知识的引入来降低反演方程的病态程度,改善求解条件以达到克服不适定性的目的,精确的重建图像.仿真结果表明,该方法能快速而且高精度的获得图像重建,具有很强的实用性.
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