Comparison study of two approaches for bioradar data processing

Anishchenko, Lesya; Ivashov, Sergey; Soldovieri, Francesco; Catapano, Ilaria; Crocco, Lorenzo

doi:10.1049/cp.2013.0110

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The radar has been developed at IREA-CNR by using commercial off-the-shelf radio-frequency components. The system has an approximate size of 284 × 184 × 252 mm 3 and operates at discrete frequencies in the range between 1.8 and 3 GHz [13,14]. The radio signal emitted by the source is split into two equal parts: one part is radiated and the other part is used to generate two reference signals with 90 degrees phase offset, which are used to down convert the reflected signal at baseband.…”

Section: Bioradar Prototypementioning

confidence: 99%

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Metrological Characterization for Vital Sign Detection by a Bioradar

et al. 2017

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Abstract:In space missions, during the long isolation at extreme conditions for human health, it is of paramount importance to monitor vital parameters. One such parameter is the breathing rate. Indeed, several factors can induce some breathing anomalies during the sleep, which may cause apnea episodes. In order to act timely with the right therapy, an early diagnosis is required. Conventional devices are usually uncomfortable since they require electrodes or probes in contact with the subject. An alternative way to perform this kind of measurement in a remote sensing modality is provided by a continuous wave bioradar operating in the microwave frequency band. This is an effective contactless tool for monitoring the respiratory activity through the measurement of chest deformation due to inhalation and exhalation. The radar emits a low power electromagnetic wave at a single frequency, which is reflected by the human chest. By measuring of the phase shift between the incident and reflected wave, it is possible to detect and monitor the respiratory rate. The main contribution of this work is concerned with a metrological characterization of the continuous wave bioradar; which is a topic not thoroughly assessed in the relevant literature. In particular, the bioradar measurements are also compared with data recorded by a spirometer, which is a standard medical device that measures the air volume inhaled and exhaled by the subject. The purpose of this study is the characterization of the measurement standard uncertainty to enable the assessment of the bioradar system performance.

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Section: Bioradar Prototypementioning

confidence: 99%

“…The system uses a single antenna (horn with 10 dB gain) thanks to a circulator that decouples the transmit and receive channels. The system is equipped with software and a graphical interface for managing the data acquisition and signal processing [13,14].…”

Section: Bioradar Prototypementioning

confidence: 99%