THz Prism: One-Shot Simultaneous Multi-Node Angular Localization Using Spectrum-to-Space Mapping with 360-to-400GHz Broadband Transceiver and Dual-Port Integrated Leaky-Wave Antennas

📋 论文概要

论文提出了一种名为“太赫兹棱镜”（THz Prism）的技术，利用频谱到空间的映射方法，在360-400GHz宽带范围内实现一次性同时定位多个节点的角度。该方法解决了太赫兹通信中快速波束对齐和方向发现的难题，无需扫描即可完成多目标角度估计。

💡 主要创新点

• 提出频谱到空间映射技术，将宽带太赫兹信号的频谱信息直接映射到空间角度，实现单次快照多节点定位。
• 工作在360-400GHz宽带，利用宽带特性实现高分辨率角度估计，无需传统扫描机制。
• 首次实现一次性同时定位多个节点，显著提升太赫兹通信系统的定位效率和实时性。

🏷 关键词

📄 原文摘要

*Equally-Credited Authors (ECAs) The spectrum above 100GHz is expected to spawn a generation of ultra-high-speed wireless links and intelligent sensing and imaging applications. They are meant to be supported through a heterogeneous and dynamically reconfigurable wireless network fabric in 5G and beyond. Such wireless communication and sensing applications require rapid localization and direction finding of mobile nodes [1]. This functionality is paramount for communications-on-the-move applications, wireless link discovery, and rapid beam alignment/tracking at mm-wave and THz frequencies [2-9]. The current protocols for direction finding and beam alignment in 5G mm-wave systems are based on iterative algorithms that are often non-scalable, time-consuming, and computationally expensive, posing serious challenges for low-latency applications. Thus there is a need to process such direction-finding methods at the ‘edge nodes’, to enable secure scalable

👥 作者与机构

Hooman Saeidi*, Suresh Venkatesh*, Xuyang Lu, Kaushik Sengupta

Princeton University, Princeton, NJ