利用ESPARGOS在增强现实中可视化无线传播与极化
Visualizing Wireless Propagation and Polarization in Augmented Reality with ESPARGOS
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中文总结 AI 辅助
该研究提出基于ESPARGOS天线阵列的增强现实可视化系统，可将WiFi信道测量结果转换为实时相机叠加层，直观呈现无线多径传播、波束成形与极化，用于科学传播、教学及实验调试。
中文摘要 AI 辅助
无线多径传播、波束成形和极化是无线电系统的核心概念，但由于人类无法直接观测射频场，这些概念难以直观呈现。本文提出一种增强现实可视化系统，该系统将ESPARGOS天线阵列的相位相干WiFi信道测量结果转换为实时相机叠加层。该系统估计二维波束空间表示，将其与光学相机视图配准，并将得到的角谱叠加到物理场景上。额外的可视化层显示相对路径延迟和极化，其中极化通过琼斯演算从两个独立天线馈源捕获的信道测量结果计算得出。该系统可作为直观的“WiFi相机”用于科学传播、教学和实验调试，且所有显示量均直接源自实测信道数据。
英文摘要
Wireless multipath propagation, beamforming, and polarization are central concepts in radio systems, but they are difficult to observe directly because radio-frequency fields are invisible to humans. This paper presents an augmented-reality visualization system that turns phase-coherent WiFi channel measurements from the ESPARGOS antenna array into a live camera overlay. The system estimates a two-dimensional beamspace representation, registers it with the optical camera view, and overlays the resulting angular spectrum onto the physical scene. Additional visual layers show relative path delay and polarization, the latter computed using Jones calculus from channel measurements captured from two separate antenna feeds. The result is an intuitive ``WiFi camera'' for science communication, teaching, and experimental debugging, while all displayed quantities remain directly derived from measured channel data.
