Body-centric antenna positioning effects for off-body UWB communications in a contemporary learning environment
Body-centric antenna positioning effects for off-body UWB communications in a contemporary learning environment
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当代学习环境中离体 UWB 通信的以体为中心的天线定位效果
DOI：
10.1109/eucap.2014.6902084
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
William G. Scanlon
中科院分区：
文献类型：
--
作者：
P. Catherwood;William G. Scanlon
研究了现代教室/会议室环境中以身体为中心的UWB信号的传播。结果表明，车身天线安装位置对接收功率水平有显著影响，将天线放置在胸部而不是肩部或手腕上会产生更多的接收功率、平均额外延迟和均方根延迟扩展的极值。此外，还给出了每个场景的最佳匹配模型，并突出了胸部和其他比较的天线位置之间的差异。这项工作的结论是，由于显著的身体阴影效应，胸部不是天线安装位置的糟糕选择，而手腕或肩膀被认为是超宽带系统更好的选择。
The propagation of UWB signals for body-centric communications within a modern classroom/conference room environment was investigated. Presented results demonstrate that the body-antenna mounting position has a marked impact on the received power levels and positioning the antenna on the chest as opposed to the shoulder or wrist creates more extreme values in receive power, mean excess delay and rms delay spread. Additionally, the best fit models for each scenario are presented and highlight the difference between the chest and other compared antenna locations. The work concluded that the chest is a poor choice of mounting position for the antenna due to significant body shadowing effects, with the wrist or shoulder considered better options for UWB systems.