A TSVD Analysis of the Impact of Polarization on Microwave Breast Imaging using an Enclosed Array of Miniaturized Patch Antennas.
A TSVD Analysis of the Impact of Polarization on Microwave Breast Imaging using an Enclosed Array of Miniaturized Patch Antennas.
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DOI：
10.1109/lawp.2014.2365755
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发表时间：
2015
影响因子：
4.2
通讯作者：
Hagness SC
中科院分区：
文献类型：
--
作者：
Mays RO;Behdad N;Hagness SC
微波乳房成像性能从根本上取决于散射数据中包含的信息质量。我们应用截断奇异值分解（TSVD）方法来评估模拟散射场景中包含的信息，其中一个紧凑的、屏蔽的小型化贴片天线阵列围绕着一个解剖学上真实的数值乳房幻影。特别地，我们研究了不同天线方向（以及极化）的影响，即两种均匀天线方向的阵列配置和一种混合方向的阵列配置。后一种情况令人感兴趣，因为它可以在天线和阵列设计中提供更大的灵活性。该分析结果表明，与均匀偏振配置相比，混合偏振配置不会降低信息质量，实际上可以提高成像性能，因此代表了微波乳房成像系统的可行设计方案。
Microwave breast imaging performance is fundamentally dependent on the quality of information contained within the scattering data. We apply a truncated singular-value decomposition (TSVD) method to evaluate the information contained in a simulated scattering scenario wherein a compact, shielded array of miniaturized patch antennas surrounds an anatomically realistic numerical breast phantom. In particular, we investigate the impact of different antenna orientations (and thus polarizations), namely two array configurations with uniform antenna orientations and one mixed-orientation array configuration. The latter case is of interest because it may offer greater flexibility in antenna and array design. The results of this analysis indicate that mixed-polarization configurations do not degrade information quality compared to uniform-polarization configurations and in fact may enhance imaging performance, and thus represent viable design options for microwave breast imaging systems.