.png){kind=icon}
返回
An Eigenvalue Decomposition Based Amplitude Extraction Method for EIT Demodulation System
.png){kind=icon}
OA
AI
DOI：10.1109/ACCESS.2024.3420424.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This work presents an amplitude extraction method based on eigenvalue decomposition (EVD), which can substitute the role of phase-sensitive demodulation in electrical impedance tomography (EIT) demodulation systems. An m x n square signal matrix is initially constructed according to a series of samples and an m $\times $ n Hankel matrix. Then, the EVD operation is performed on the square signal matrix, and as a result, its eigenvalues are sequentially obtained. Finally, a mathematical relation among the sinusoid amplitude, effective eigenvalues and the number of rows of the constructed signal matrix is provided. Compared to traditional methods, the proposed method offers the following merits: 1) since no reference signal is required, there is no need to consider synchronization between the received and reference signals; 2) it can extract the signal amplitude with high signal-to-noise ratio (SNR), even in the case of non-integer periodic sampling; 3) EVD itself can achieve a filtering function, thereby additional low-pass filters are unnecessary for the signal conditioning module. The feasibility and accuracy of the proposed method are verified by simulations and experimental results, demonstrating that it can provide the amplitude information with excellent robustness and SNR performances.
Keyword:
Demodulation
Electrical impedance tomography
Eigenvalues and eigenfunctions
Matrix decomposition
Image reconstruction
Signal to noise ratio
Matrix converters
amplitude extraction
phase-sensitive demodulation
eigenvalue decomposition
effective eigenvalues
期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
机构
引用论文
Shape Reconstruction With Multiphase Conductivity for Electrical Impedance Tomography Using Improved Convolutional Neural Network Method.png)
IEEE SENSORS JOURNAL
IEEE SENSORS JOURNALIF4.5
PREAI
分享收藏HIV inhibits CD4+ T-cell proliferation by inducing indoleamine 2,3-dioxygenase in plasmacytoid dendritic cellsBlood
OAAI
BloodIF0
OAAI分享收藏A Nonlinear Weighted Anisotropic Total Variation Regularization for Electrical Impedance TomographyOAAI
OAAI分享收藏A Two-Stage Deep Learning Method for Robust Shape Reconstruction With Electrical Impedance Tomography一种用于电阻抗层析成像的鲁棒形状重建的两阶段深度学习方法
PREAI
分享收藏
查看更多内容