实时2.4 ghz多普勒雷达系统，具有机载生命信号检测的所有功能

2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT) Pub Date : 2020-11-03 DOI:10.1109/ICSICT49897.2020.9278303

Wei Ma, Zhiming Xiao, Dongyang Tang, Fei Liu, Weibo Hu

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引用次数: 0

摘要

本文实现并介绍了具有机载实时生命体征检测功能的2.4 ghz零中频多普勒雷达系统原型。该雷达系统完成了射频前端、基带模拟处理、模数转换、数字信号处理、生命体征信号提取及数值和图形结果显示。在该系统中，使用了一个Sallen-Key滤波器和一个FPGA开发板来消除干扰、调节增益、采集和处理原始数据。实验表明，当一个人坐在距离该雷达1米远的地方时，可以清楚地检测到呼吸和心跳。实时波形和频谱分析都通过VGA接口显示在单独的LCD上。

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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A Real-Time 2.4-GHz Doppler Radar System with All Functionalities on Board for Vital Signal Detection

The protype of a 2.4-GHz zero-IF Doppler radar system with all functionalities on board for real-time vital sign detection is implemented and presented in this paper. The radar system accomplishes RF front end, base-band analog processing, analog-to-digital conversion, digital signal processing for the vital-sign signal extraction and the numeric and graphic result display. In the system, a Sallen-Key filter and a FPGA development board are used to remove interferences, adjust gain, and collect and process raw data. Experiments show that the respiration and heartbeat can be clearly detected when a person sitting at 1 meter away from the proposed radar. Both the realtime waveform and spectrum analysis are displayed on a separate LCD through an VGA interface.

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2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)

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