An Examination of Frequency-Modulated Continuous Wave Radar for Biomedical Imaging

J. Metcalf, J. Mcdaniel, J. Ruyle, N. Goodman, J. Borders
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引用次数: 1

Abstract

The dominant waveforms used for high resolution biomedical imaging radar systems are stepped frequency or a frequency sampled ultrawideband pulsed waveform. Here several attractive characteristics of frequency-modulated continuous wave (FMCW) radar systems are summarized to motivate an alternative approach to biomedical imaging radar design. Motivated by these features a first-cut at a link budget analysis is presented for replacing computed tomography scans for imaging of the human paranasal sinuses. As a first approach, the achievable signal-to-noise ratio (SNR) of such a system is examined based on an initial tissue model and pertinent safety regulations. It is shown that such an FMCW mode is feasible from an SNR standpoint, but that much work is needed to compensate for distortions, account for the skin response, and validate the model.
调频连续波雷达用于生物医学成像的研究
用于高分辨率生物医学成像雷达系统的主要波形是阶跃频率或频率采样超宽带脉冲波形。本文总结了调频连续波(FMCW)雷达系统的几个有吸引力的特性,以激发生物医学成像雷达设计的替代方法。由这些特征的动机,在一个链接预算分析的第一切割提出了取代计算机断层扫描成像的人类鼻窦。作为第一种方法,该系统可实现的信噪比(SNR)是基于初始组织模型和相关安全法规进行检查的。结果表明,从信噪比的角度来看,这种FMCW模式是可行的,但需要做大量的工作来补偿失真,考虑皮肤响应,并验证模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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