Evidence map›Paper›PMID 34064145›Full record

ArticleSensors (Basel, Switzerland)2021

High Accuracy Heartbeat Detection from CW-Doppler Radar Using Singular Value Decomposition and Matched Filter.

Yuki Iwata, Han Trong Thanh, Guanghao Sun, Koichiro Ishibashi

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Detrending Technique for Denoising in CW Radar.Sensors (Basel, Switzerland) · 2021
    Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Yuki IwataGraduate School of Informatics and Engineering, The University of Electro-Communications (UEC), Tokyo 182-8585, Japan.ORCID 0000-0002-7702-8138
Han Trong ThanhSchool of Electronics and Telecommunications, Hanoi University of Science and Technology (HUST), Hanoi 100000, Vietnam.
Guanghao SunGraduate School of Informatics and Engineering, The University of Electro-Communications (UEC), Tokyo 182-8585, Japan.ORCID 0000-0001-5639-3171
Koichiro IshibashiGraduate School of Informatics and Engineering, The University of Electro-Communications (UEC), Tokyo 182-8585, Japan.

Funding

JSPS KAKENHI P19H02385
6 · The paper itself

Abstract

Heart rate measurement using a continuous wave Doppler radar sensor (CW-DRS) has been applied to cases where non-contact detection is required, such as the monitoring of vital signs in home healthcare. However, as a CW-DRS measures the speed of movement of the chest surface, which comprises cardiac and respiratory signals by body motion, extracting cardiac information from the superimposed signal is difficult. Therefore, it is challenging to extract cardiac information from superimposed signals. Herein, we propose a novel method based on a matched filter to solve this problem. The method comprises two processes: adaptive generation of a template via singular value decomposition of a trajectory matrix formed from the measurement signals, and reconstruction by convolution of the generated template and measurement signals. The method is validated using a dataset obtained in two different experiments, i.e., experiments involving supine and seated subject postures. Absolute errors in heart rate and standard deviation of heartbeat interval with references were calculated as 1.93±1.76bpm and 57.0±28.1s for the lying posture, and 9.72±7.86bpm and 81.3±24.3s for the sitting posture.

Indexed as

RadarSignal Processing, Computer-AssistedAlgorithmsHeart RateHumansUltrasonography, DopplerVital Signscontinuous wave-Doppler radarmatched filteringnon-contact vital signs measurementsingular value decomposition

Identifiers

PMID34064145
PMCPMC8196719

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.