Remote Estimation of Blood Pressure Using Millimeter-Wave Frequency-Modulated Continuous-Wave Radar [PDF]
Sensors, 2023 This paper proposes to remotely estimate a human subject’s blood pressure using a millimeter-wave radar system. High blood pressure is a critical health threat that can lead to diseases including heart attacks, strokes, kidney disease, and vision loss ...
Lovedeep Singh +4 more
doaj +5 more sources
Coded continuous wave meteor radar [PDF]
Atmospheric Measurement Techniques, 2016 The concept of a coded continuous wave specular meteor radar (SMR) is described. The radar uses a continuously transmitted pseudorandom phase-modulated waveform, which has several advantages compared to conventional pulsed SMRs.
J. Vierinen +4 more
doaj +7 more sources
Subcarrier Frequency-Modulated Continuous-Wave Radar in the Terahertz Range Based on a Resonant-Tunneling-Diode Oscillator [PDF]
Sensors, 2020 We introduce a new principle for distance measurement in the terahertz-wave range using a resonant-tunneling-diode (RTD) oscillator as a source at 511 GHz and relying on the frequency-modulated continuous-wave (FMCW) radar technique.
Adrian Dobroiu +4 more
doaj +3 more sources
Exploring Silent Speech Interfaces Based on Frequency-Modulated Continuous-Wave Radar. [PDF]
Sensors (Basel), 2022 Speech is our most natural and efficient form of communication and offers a strong potential to improve how we interact with machines. However, speech communication can sometimes be limited by environmental (e.g., ambient noise), contextual (e.g., need ...
Ferreira D +4 more
europepmc +2 more sources
Silent speech command word recognition using stepped frequency continuous wave radar. [PDF]
Sci Rep, 2022 Recovering speech in the absence of the acoustic speech signal itself, i.e., silent speech, holds great potential for restoring or enhancing oral communication in those who lost it.
Wagner C +5 more
europepmc +2 more sources
Frequency-Modulated Continuous Wave Radar Respiratory Pattern Detection Technology Based on Multifeature. [PDF]
J Healthc Eng, 2021 Respiratory diseases including apnea are often accompanied by abnormal respiratory depth, frequency, and rhythm. If different abnormal respiratory patterns can be detected and recorded, with their depth, frequency, and rhythm analyzed, the detection and ...
Wang Q +7 more
europepmc +2 more sources
Automated Detection of Sleep Apnea-Hypopnea Events Based on 60 GHz Frequency-Modulated Continuous-Wave Radar Using Convolutional Recurrent Neural Networks: A Preliminary Report of a Prospective Cohort Study. [PDF]
Sensors (Basel), 2022 Radar is a promising non-contact sensor for overnight polysomnography (PSG), the gold standard for diagnosing obstructive sleep apnea (OSA). This preliminary study aimed to demonstrate the feasibility of the automated detection of apnea-hypopnea events ...
Choi JW +10 more
europepmc +2 more sources
Doppler Factor in the Omega-k Algorithm for Pulsed and Continuous Wave Synthetic Aperture Radar Raw Data Processing [PDF]
Applied Sciences, 2023 Synthetic aperture radar (SAR) raw data do not have a direct application; therefore, SAR raw signal processing algorithms are used to generate images that are used for various required applications.
Jhohan Jancco-Chara +4 more
doaj +2 more sources
Brachialis Pulse Wave Measurements with Ultra-Wide Band and Continuous Wave Radar, Photoplethysmography and Ultrasonic Doppler Sensors [PDF]
Sensors, 2020 The measurement and analysis of the arterial pulse wave provides information about the state of vascular health. When measuring blood pressure according to Riva-Rocci, the systolic and diastolic blood pressure is measured non-invasively with an ...
Horst Hellbrück +3 more
doaj +2 more sources
Multi-target vital signs detection using frequency-modulated continuous wave radar
EURASIP Journal on Advances in Signal Processing, 2021 Respiration and heartbeats rates are important physiological assessment indicators that provide valid prior-knowledge for the diagnosis of numerous diseases.
Yong Wang +4 more
doaj +2 more sources