A Two-Stage Rotational Surface Clutter Suppression Method for Microwave Breast Imaging With Multistatic Impulse-Radar Detector
A Two-Stage Rotational Surface Clutter Suppression Method for Microwave Breast Imaging With Multistatic Impulse-Radar Detector
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多基地脉冲雷达探测器微波乳腺成像两级旋转表面杂波抑制方法
DOI：
10.1109/tim.2020.3004683
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发表时间：
2020
影响因子：
5.6
通讯作者：
Kikkawa Takamaro
中科院分区：
文献类型：
--
作者：
Song Hang;Sasada Shinsuke;Masumoto Norio;Kadoya Takayuki;Okada Morihito;Arihiro Koji;Xiao Xia;Kikkawa Takamaro
基于雷达的微波成像是一种有前途的技术，用于多种医疗应用，如乳腺健康监测、乳腺癌检测、消融监测和化疗监测。在我们的前期工作中，我们研制了一种手持式多基地CMOS脉冲雷达探测器。其设计用于在仰卧位直接放置在患者身上，无需耦合介质。在基于雷达的微波乳腺成像中，由于皮肤反射、接触不良和天线耦合等原因产生的表面杂波会影响成像质量。针对雷达探测器多基地旋转结构，提出了一种两级旋转杂波抑制方法。它由信号选择级和自适应滤波级组成。该方法的新奇在于引入了一个使用L2正则化的先验约束以便于滤波。同时，在信号选择中考虑了天线和信道的变化。所提出的方法的性能进行了验证，在不同的表面条件和病人试用的实验。实验结果表明，该方法能有效地抑制地物杂波，提高成像质量。
Radar-based microwave imaging is a promising technique for multiple medical applications, such as breast health monitoring, breast cancer detection, ablation monitoring, and chemotherapy monitoring. In our previous work, a hand-held multistatic CMOS impulse-radar detector was developed. It was designed to be placed directly on the patient in a supine position without a coupling medium. In the radar-based microwave breast imaging, the surface clutters, which are generated from skin reflection, imperfect contacts, and antenna coupling, deteriorate the imaging quality. This article proposes a two-stage rotational clutter suppression method for the multistatic rotational configuration of the radar detector. It consists of a signal selection stage and an adaptive filtering stage. The novelty of the proposed method is that a prior constraint using L2regularization is introduced to facilitate the filtering. Meanwhile, the antenna and channel variations are considered in the signal selection. The performance of the proposed method is verified in experiments with different surface conditions and patient trial. The results demonstrated that the proposed method is effective in suppressing the surface clutters and improving the image quality.
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DOI：
10.1016/j.compmedimag.2017.02.003
发表时间：
2017-06-01
影响因子：
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作者：
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