MMT-HEAR: Multiple Moving Targets Heartbeats Estimation and Recovery Using IR-UWB Radars

Yang, Xiuzhu; Zhang, Xinyue; Qian, Hongyu; Ding, Yi; Zhang, Lin

doi:10.1109/embc44109.2020.9175318

Cited by 6 publications

(11 citation statements)

References 11 publications

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“…As in the previous study, the subjects in [15] performed only backward and forward movements at a slow speed with a measurement error range of 0-8 bpm. The authors of paper [16] used multiple radars to measure the heart rate of a moving target with an accuracy of about 86%. The mean heart rate measurement accuracy of the proposed method was 95.88%.…”

Section: ) Fixed-route Experimentsmentioning

confidence: 99%

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Remote Vital Signs Measurement of Indoor Walking Persons Using mm-Wave FMCW Radar

Toda

2022

IEEE Access

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Research on radar-based non-contact vital sign monitoring systems is critical during the COVID-19 epidemic. The accuracy of remote vital sign measurements has increased with the advancement of radar technology and various algorithms. Most studies require subjects to remain stationary, such as standing, sitting in a chair, or lying on a bed, and various measurement algorithms have been proposed. However, maintaining a stationary state as a prerequisite for measurement limits the development and application prospects of radar-based vital sign monitoring systems. Therefore, this paper presents a novel method for monitoring the vital signs of moving targets using a millimeter-wave frequency-modulated continuous-wave (FMCW) radar. The experimental results showed that regardless of whether the subjects walked at 1 m/s or with the left side of their body facing the radar, the accuracy of the heart rate measurement remained high. In the fixed-route experiments, the root mean squared error (RMSE) for heart rate estimation was 4.09 bpm, with an accuracy of 95.88%.INDEX TERMS FMCW radar, health care, heart rate, ICEEMDAN, radar signal processing, remote sensing, vital signs

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Section: ) Fixed-route Experimentsmentioning

confidence: 99%

“…Therefore, there is a critical need for a method that can accurately measure the vital signs of moving targets. Some researchers have proposed using impulse-radio ultra-wideband (IR-UWB) radar-based methods to measure the heart rate of moving persons [15], [16]. However, their subjects moved slowly, and the experimental method was relatively simple.…”

mentioning

confidence: 99%

Remote Vital Signs Measurement of Indoor Walking Persons Using mm-Wave FMCW Radar

Toda

2022

IEEE Access

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“…In [16,40,48,52,56,65,68,72,81,115], and in seven studies, with three or more test persons simultaneously [16,48,50,56,59,71,81]. In four studies, persons employed to interfere with the signal (interfering persons) were additionally included [25,40,55,77].…”

Section: Resultsmentioning

confidence: 99%

Systematic Literature Review Regarding Heart Rate and Respiratory Rate Measurement by Means of Radar Technology

Liebetruth,

Kehe,

Steinritz

et al. 2024

Sensors

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The use of radar technology for non-contact measurement of vital parameters is increasingly being examined in scientific studies. Based on a systematic literature search in the PubMed, German National Library, Austrian Library Network (Union Catalog), Swiss National Library and Common Library Network databases, the accuracy of heart rate and/or respiratory rate measurements by means of radar technology was analyzed. In 37% of the included studies on the measurement of the respiratory rate and in 48% of those on the measurement of the heart rate, the maximum deviation was 5%. For a tolerated deviation of 10%, the corresponding percentages were 85% and 87%, respectively. However, the quantitative comparability of the results available in the current literature is very limited due to a variety of variables. The elimination of the problem of confounding variables and the continuation of the tendency to focus on the algorithm applied will continue to constitute a central topic of radar-based vital parameter measurement. Promising fields of application of research can be found in particular in areas that require non-contact measurements. This includes infection events, emergency medicine, disaster situations and major catastrophic incidents.

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“…Different from other non-contact measurements such as infrared and optical sensors, ultrawideband (UWB) bio-radar is the most effective searching method mainly due to its advantages in penetrating obstacles and robustness to a variety of weather and light conditions [3]- [8]. Especially, non-contact monitoring of vital signs at in-home environment based on UWB bio-radar is increasingly becoming a hot research topic [9]. As for current post-disaster rescue studies that use UWB bio-radars, they focus mainly on the detecting and locating of the buried targets [10], [11], and a few designs attempt to distinguish the human targets from family pets under through-obstacle conditions [12], [13].…”

Section: Introductionmentioning

confidence: 99%

Non-Contact Vital States Identification of Trapped Living Bodies Using Ultra-Wideband Bio-Radar

Wang

Xue

et al. 2021

IEEE Access

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Identifying the vital states of trapped survivors during post-disaster rescue missions can result in improved rescue strategies and provide injury pre-diagnosis information. The most effective rescue method is the use of bio-radar based non-contact measurements. Presently, bio-radar techniques focus on detecting and locating. Herein, a method to identify vital states with an ultra-wideband bio-radar is proposed, while simulating a trapped condition with Beagle dogs. This investigation revealed three vital stages under the trapped condition: normal, transitioning, and agonal stages. Upon entering the transitioning stage, the heartrates were apparently high, and the respiratory rates increased sharply. The temperatures dropped rapidly once passing this stage. In particular, the respiratory waveforms from the bio-radar frequently change from a normal sine like curve to an "M" like curve within the transitioning stage. The accurate beginning and ending of the transitioning stage are defined by a newly proposed indicator of relative occurrence frequency. Pathological observations indicated that the fragmentation of lamellar bodies within type II alveolar cells caused the insufficiency of the lung surfactant, and further resulted in the occurrence of the "M" like curves. This pioneering work realizes the vital states identification only using a non-contact ultra-wideband bio-radar, thereby enables to infer the health conditions, life expectancy, and appropriate subsequent treatment of victims in the trapped condition. Therefore, it has the potential to promote the welfare of post-disaster trapped human victims.INDEX TERMS identifying vital states, lamellar bodies, lung surfactant, post-disaster rescue, respiration, ultra-wideband (UWB) bio-radar

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MMT-HEAR: Multiple Moving Targets Heartbeats Estimation and Recovery Using IR-UWB Radars

Cited by 6 publications

References 11 publications

Remote Vital Signs Measurement of Indoor Walking Persons Using mm-Wave FMCW Radar

Remote Vital Signs Measurement of Indoor Walking Persons Using mm-Wave FMCW Radar

Systematic Literature Review Regarding Heart Rate and Respiratory Rate Measurement by Means of Radar Technology

Non-Contact Vital States Identification of Trapped Living Bodies Using Ultra-Wideband Bio-Radar

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