Williams Trevor C, Sill Jeff M, Fear Elise C
Schulich School of Engineering, University of Calgary, Alberta, Canada.
Annu Int Conf IEEE Eng Med Biol Soc. 2008;2008:5837-41. doi: 10.1109/IEMBS.2008.4650542.
Increasingly complex breast models are being used to test emerging microwave imaging modalities. With the increased complexity, waveforms received from skin reflections may consist of contributions from multiple locations, resulting in signatures not examined with simpler models. For example, antennas placed near the chest wall or at significant distances from the breast have been found to receive multiple skin reflections. With these received signals, simple methods used to estimate skin location, such as peak detection, do not provide reliable results. In this paper, we apply a deconvolution technique to find the impulse response with respect to a known reflected signal. Results demonstrate that this method provides more reliable estimates of skin location and shows the ability to estimate two skin locations from a waveform exhibiting two dominant skin reflections.
越来越复杂的乳房模型正被用于测试新兴的微波成像模式。随着复杂性的增加，从皮肤反射接收到的波形可能由多个位置的贡献组成，从而产生了用较简单模型未检验过的信号特征。例如，已发现放置在胸壁附近或与乳房有显著距离处的天线会接收到多个皮肤反射。利用这些接收到的信号，用于估计皮肤位置的简单方法，如峰值检测，无法提供可靠的结果。在本文中，我们应用去卷积技术来找到相对于已知反射信号的脉冲响应。结果表明，该方法能更可靠地估计皮肤位置，并显示出从呈现两个主要皮肤反射的波形中估计两个皮肤位置的能力。
