基于太赫兹信道测量的频率-角度二维反射系数建模
Frequency-Angle Two-Dimensional Reflection Coefficient Modeling Based on Terahertz Channel Measurement
摘要：
太赫兹（THz）信道传播特性是太赫兹通信系统设计、评估和优化的重要依据。此外，反射在信道传播中起着重要作用。在这封信中，太赫兹信道的反射系数进行了研究的基础上，广泛的测量活动。首先，搭建了220 ~ 320 GHz的THz信道探测器，入射角为10° ~ 80°。基于测量的传播损耗，五种建筑材料，即，玻璃、瓷砖、铝合金、板和石膏板分别计算频率和入射角。研究发现，由于THz相关参数的缺乏，导致非金属材料的菲涅耳模型不能很好地拟合测量数据。因此，我们提出了一个频率-角度的二维反射系数模型，通过修改菲涅耳模型与洛伦兹和德鲁德模型。所提出的模型特征的频率和入射角的反射系数，并显示出较低的均方根误差与测量数据。一般来说，这些结果是有用的太赫兹信道的建模。
英文摘要：
Terahertz (THz) channel propagation characteristics are vital for the design, evaluation, and optimization for THz communication systems. Moreover, reflection plays a significant role in channel propagation. In this letter, the reflection coefficient of the THz channel is researched based on extensive measurement campaigns. Firstly, we set up the THz channel sounder from 220 to 320 GHz with the incident angle ranging from 10° to 80°. Based on the measured propagation loss, the reflection coefficients of five building materials, i.e., glass, tile, aluminium alloy, board, and plasterboard, are calculated separately for frequencies and incident angles. It is found that the lack of THz relative parameters leads to the Fresnel model of non-metallic materials can not fit the measured data well. Thus, we propose a frequency-angle two-dimensional reflection coefficient model by modifying the Fresnel model with the Lorenz and Drude model. The proposed model characterizes the frequency and incident angle for reflection coefficients and shows low root-mean-square error with the measured data. Generally, these results are useful for modeling THz channels.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
