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图像范围对特拉赫兹编码孔径成像性能的影响

Yan Teng¹, Haodong Yang¹, Xinhong Cui¹

¹Key Laboratory of Advanced Science and Technology on High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China.

Sensors (Basel, Switzerland)

|September 27, 2025

概括

太赫兹编码孔径成像 (TCAI) 的性能在特定范围内由于相位诱导的相关性而意外降低. 优化成像范围对于可靠的TCAI系统设计和运行至关重要.

科学领域:

物理物理学物理
影像科学影像科学
电气工程电气工程

背景情况:

太赫兹编码孔径成像 (TCAI) 是一种强大的非破坏性评估和安全查技术.
了解影响TCAI性能的因素对于其实际应用至关重要.

研究的目的:

调查TCAI性能和成像范围之间的非单调关系.
阐明导致性能降低的潜在物理机制.
为优化TCAI系统设计提供指导.

主要方法:

在参考信号矩阵 (RSM) 中,阶段诱导的时空相关性的数学建模.
定义和分析一个无维度的标准,管理图像质量.
对降解机制的评估,包括RSM列/行相关性和波面编码效应.
对重建算法的比较分析,特别是双步代缩/值 (TwIST) 算法.

主要成果:

揭示了TCAI性能与成像范围之间的反直觉,非单调的依赖性.
当一个特定的无维标准达到整数值时,图像质量会恶化,这表明强烈的RSM相关性.
两个降解机制 - - 增加RSM柱相关性和减少相覆盖 - - 突出超出了临界成像范围的值.
重建失败主要与涉及主导散射器的相关性有关.

结论:

该研究确定了特定的成像范围,导致显著的TCAI性能下降.
阶段诱导的RSM相关性是这种反直觉现象的主要原因.
TwIST算法在具有挑战性的条件下显示出稳健性,并且洞察力指导最佳的TCAI系统设计和范围选择.

关键词:

列和行对应关系的列和行对应关系.图像范围范围的成像范围.参考信号矩阵 (RSM) 是指空间时间的独立性.太赫兹编码孔径成像技术

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