This paper presents a survey of the state-of-the-art advances in human vital signs detection using radar sensors, their integration and coexistence with communication systems, and their issues in spectrum sharing. The focus of this survey is to review the detection, monitoring, and tracking of vital signs, specifically the respiration rate and heartbeat rate over the recent five years. It is observed that in line with technological advancements, a multitude of radar types operating in diverse frequency spectra have been introduced with different hardware implementations, considering various detection scenarios, and applying multiple signal processing algorithms. The aim of these researches varies, from enhancing the detection accuracy, improving the processing speed, reducing the power consumption, simplifying the hardware used, lowering implementation costs, and the combinations of them. Besides that, this review also focuses on literature aimed at increasing the detection accuracy and reducing the processing time using FPGAs, prior to benchmarking them against other processing platforms. Finally, a perspective on the future of human vital signs detection using radar sensors concludes this review.

中文翻译：

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使用雷达技术进行生命体征检测的调查以及采用FPGA实现的处理

本文介绍了使用雷达传感器检测人类生命体征的最新进展，它们与通信系统的集成和共存以及它们在频谱共享方面的问题。这项调查的重点是审查生命体征的检测，监视和跟踪，特别是最近五年的呼吸频率和心跳频率。可以看到，随着技术的进步，考虑到各种检测方案并应用了多种信号处理算法，已经在不同的硬件实现中引入了在不同频谱下运行的多种雷达类型。这些研究的目的各不相同，从提高检测精度，提高处理速度，降低功耗，简化硬件使用，降低实施成本及其组合。除此之外，本文还将重点针对旨在提高检测精度并减少使用FPGA的处理时间的文献，然后再将它们与其他处理平台进行比较。最后，对使用雷达传感器检测人类生命体征的未来展望进行了总结。