Blind separation of several biological objects respiration patterns by means of a step-frequency continuous-wave bioradar

Anishchenko, Lesya; Razevig, Vladimir; Chizh, Margarita

doi:10.1109/comcas.2017.8244742

Cited by 6 publications

(7 citation statements)

References 6 publications

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“…Generally, the arrays show higher gain (10.8-25 dBi), when compared with a single antenna (5.8-9.80 dBi). As an exception, the single horn antennas presented in [19,35] had gain equal to 25 dBi and 20 dBi, respectively.…”

Section: Discussionmentioning

confidence: 98%

“…Some commercially available bio-radars have also been tested. In [35], the authors proposed a new method of blind source separation for signal from multiple subjects. In this work, the authors used a stepped frequency CW bio-radar BioRASCAN-4 (RSLab, Moscow, Russia) [36] that is composed by two horn antennas, operating at 3.6-4.0 GHz, with a constant gain equal to 20 dBi.…”

Section: Customized Antennas For Commercial Transceiversmentioning

confidence: 99%

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Different Antenna Designs for Non-Contact Vital Signs Measurement: A Review

et al. 2019

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Cardiopulmonary activity measured through contactless means is a hot topic within the research community. The Doppler radar is an approach often used to acquire vital signs in real time and to further estimate their rates, in a remote way and without requiring direct contact with subjects. Many solutions have been proposed in the literature, using different transceivers and operation modes. Nonetheless, all different strategies have a common goal: enhance the system efficiency, reduce the manufacturing cost, and minimize the overall size of the system. Antennas are a key component for these systems since they can influence the radar robustness directly. Therefore, antennas must be designed with care, facing several trade-offs to meet all the system requirements. In this sense, it is necessary to define the proper guidelines that need to be followed in the antenna design. In this manuscript, an extensive review on different antenna designs for non-contact vital signals measurements is presented. It is intended to point out and quantify which parameters are crucial for the optimal radar operation, for non-contact vital signs’ acquisition.

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Section: Discussionmentioning

confidence: 98%

Section: Customized Antennas For Commercial Transceiversmentioning

confidence: 99%

Different Antenna Designs for Non-Contact Vital Signs Measurement: A Review

et al. 2019

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“…Using spaced transceivers should allow the observation of a biological object from different angles, which results in different amplitude levels of a received signal. Moreover, such architecture allows separating the vital signs patterns of two different, simultaneously observed humans if needed, which is described in [34].…”

Section: Methodsmentioning

confidence: 99%

Challenges and Potential Solutions of Psychophysiological State Monitoring with Bioradar Technology

Anishchenko

2018

Diagnostics

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Psychophysiological state monitoring provides a promising way to detect stress and accurately assess wellbeing. The purpose of the present work was to investigate the advantages of utilizing a new unobtrusive multi-transceiver system on the accuracy of remote psychophysiological state monitoring by means of a bioradar technique. The technique was tested in laboratory conditions with the participation of 35 practically healthy volunteers, who were asked to perform arithmetic and physical workload tests imitating different types of stressors. Information about any variation in vital signs, registered by a bioradar with two transceivers, was used to detect mental or physical stress. Processing of the experimental results showed that the designed two-channel bioradar can be used as a simple and relatively easy approach to implement a non-contact method for stress monitoring. However, individual specificity of physiological responses to mental and physical workloads makes the creation of a universal stress-detector classifier that is suitable for people with different levels of stress tolerance a challenging task. For non-athletes, the proposed method allows classification of calm state/mental workload and calm state/physical workload with an accuracy of 89% and 83% , respectively, without the usage of any additional a priori information on the subject.

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“…Another powerful algorithm to detect breathing rates of multiple subjects is the independent component analysis (ICA) [111,112] technique. This method allows blind segregation of data into independent sources.…”

Section: Background Research and Literature Reviewmentioning

confidence: 99%

“…This method allows blind segregation of data into independent sources. This method was applied to separate the breathing rates of three people successfully by an step frequency continuous wave (SFCW) radar sensor [111].…”

Section: Background Research and Literature Reviewmentioning

confidence: 99%

Review-Microwave Radar Sensing Systems for Search and Rescue Purposes

Van

Tang

Demir

et al. 2019

Sensors

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This paper presents a survey of recent developments using Doppler radar sensor in searching and locating an alive person under debris or behind a wall. Locating a human and detecting the vital signs such as breathing rate and heartbeat using a microwave sensor is a non-invasive technique. Recently, many hardware structures, signal processing approaches, and integrated systems have been introduced by researchers in this field. The purpose is to enhance the accuracy of vital signs’ detection and location detection and reduce energy consumption. This work concentrates on the representative research on sensing systems that can find alive people under rubble when an earthquake or other disasters occur. In this paper, various operating principles and system architectures for finding survivors using the microwave radar sensors are reviewed. A comparison between these systems is also discussed.

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Blind separation of several biological objects respiration patterns by means of a step-frequency continuous-wave bioradar

Cited by 6 publications

References 6 publications

Different Antenna Designs for Non-Contact Vital Signs Measurement: A Review

Different Antenna Designs for Non-Contact Vital Signs Measurement: A Review

Challenges and Potential Solutions of Psychophysiological State Monitoring with Bioradar Technology

Review-Microwave Radar Sensing Systems for Search and Rescue Purposes

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