Reconfigurable Intelligent Surface-Aided Indoor Radar Monitoring: A Feasibility Study

IF 3 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Marco Mercuri;Emilio Arnieri;Raffaele De Marco;Pierangelo Veltri;Felice Crupi;Luigi Boccia
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引用次数: 0

Abstract

The application of radar technology in indoor people monitoring has opened up new avenues, such as localization and tracking, vital signs monitoring, and fall detection. Nevertheless, one of the significant challenges facing radar systems is the issue of indoor multipath propagation, which results in radar ghosts that can diminish the detection accuracy or even compromise the monitoring process entirely. This study delves into the utilization of reconfigurable intelligent surfaces (RISs) in radar-based indoor people localization. Thanks to the use of RIS, targets can be tracked from multiple orientations, achieving a more precise estimation of the propagation channel and in turn mitigating the effects of indoor multipath propagation. As a result, the detection performance of the radar system can be improved without increasing the radar's complexity. Empirical evidence gathered from experiments conducted in a laboratory environment has demonstrated the feasibility of the proposed approach in accurately locating multiple subjects in a two-dimensional (2-D) space while being able to reject radar ghosts. Practical implications of this novel approach include the development of smart building systems, Internet of Things (IoT), telemedicine, Hospital 4.0, automated nurse call solutions, ambient assisted living, firefighter tracking, and security applications.
可重构智能地面辅助室内雷达监测:可行性研究
雷达技术在室内人员监测中的应用开辟了定位与跟踪、生命体征监测、跌倒检测等新途径。然而,雷达系统面临的一个重大挑战是室内多径传播问题,它会导致雷达鬼影,从而降低探测精度,甚至完全危及监测过程。本研究探讨了可重构智能表面(RISs)在基于雷达的室内人物定位中的应用。由于RIS的使用,可以从多个方向跟踪目标,实现对传播信道的更精确估计,从而减轻室内多径传播的影响。在不增加雷达复杂性的前提下,提高了雷达系统的探测性能。在实验室环境中进行的实验中收集的经验证据表明,所提出的方法在二维(2-D)空间中准确定位多个受试者的可行性,同时能够拒绝雷达幽灵。这种新方法的实际意义包括智能建筑系统、物联网(IoT)、远程医疗、医院4.0、自动护士呼叫解决方案、环境辅助生活、消防员跟踪和安全应用的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.80
自引率
9.40%
发文量
58
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