Gilmore Colin, Mojabi Puyan, Zakaria Amer, Ostadrahimi Majid, Kaye Cam, Noghanian Sima, Shafai Lotfollah, Pistorius Stephen, LoVetri Joe
Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, Canada.
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:2288-91. doi: 10.1109/IEMBS.2009.5335060.
We describe a 2D wide-band multi-frequency microwave imaging system intended for biomedical imaging. The system is capable of collecting data from 2-10 GHz, with 24 antenna elements connected to a vector network analyzer via a 2 x 24 port matrix switch. Through the use of two different nonlinear reconstruction schemes: the Multiplicative-Regularized Contrast Source Inversion method and an enhanced version of the Distorted Born Iterative Method, we show preliminary imaging results from dielectric phantoms where data were collected from 3-6 GHz. The early inversion results show that the system is capable of quantitatively reconstructing dielectric objects.
我们描述了一种用于生物医学成像的二维宽带多频微波成像系统。该系统能够在2 - 10 GHz频段收集数据，24个天线元件通过一个2×24端口矩阵开关连接到矢量网络分析仪。通过使用两种不同的非线性重建方案：乘法正则化对比度源反演方法和畸变玻恩迭代方法的增强版本，我们展示了从3 - 6 GHz收集数据的介质仿体的初步成像结果。早期的反演结果表明该系统能够对介电物体进行定量重建。
