Wei Ma, Zhiming Xiao, Dongyang Tang, Fei Liu, Weibo Hu
{"title":"A Real-Time 2.4-GHz Doppler Radar System with All Functionalities on Board for Vital Signal Detection","authors":"Wei Ma, Zhiming Xiao, Dongyang Tang, Fei Liu, Weibo Hu","doi":"10.1109/ICSICT49897.2020.9278303","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":6727,"journal":{"name":"2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)","volume":"20 1","pages":"1-3"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSICT49897.2020.9278303","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
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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