UWB microwave imaging system with a novel calibration approach for breast cancer detection
UWB microwave imaging system with a novel calibration approach for breast cancer detection
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UWB 微波成像系统采用新颖的校准方法进行乳腺癌检测
DOI：
10.1109/biowireless.2011.5724350
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
M. Mahfouz
中科院分区：
文献类型：
--
作者：
Yazhou Wang;A. Fathy;M. Mahfouz
微波成像系统原型已开发用于早期乳腺癌检测。该系统是基于脉冲超宽带（UWB）雷达技术。一种新颖的，实用的校准方法已被应用在我们的系统中，以消除由于皮肤后向散射和Tx/Rx天线耦合的大的接收信号，并强调从感兴趣的对象的反射/散射。该方法对于在低对比度条件下识别恶性组织至关重要，恶性组织与健康组织之间的介电特性差异不超过10%。该系统已被用来检测从乳房模型的圆柱形目标。利用这种新的标定方法，我们的系统已经成功地检测和定位的目标，直径为5毫米，在低对比度的条件。详细的实验装置和实验成像结果将在本文中讨论。
A microwave imaging system prototype has been developed for early breast cancer detection. The system is based on impulse Ultra-Wideband (UWB) radar technology. A novel, practical calibration method has been applied in our system to remove the large received signals due to both skin backscattering and Tx/Rx antenna coupling, and to underline the reflection/scattering from object of interest. This calibration method is crucial to identify the malignant tissues in a low-contrast condition that the difference of dielectric properties between malignant tissues and healthy tissues is not more than 10%. The system has been used to detect the cylindrical targets from a breast model. With this novel calibration approach, our system has successfully detected and localized the targets with a diameter of 5mm in a low-contrast condition. Details of the experimental setup and experimental imaging results will be discussed in this paper.