Results 11 to 20 of about 287,056 (358)

Blood Pressure Estimation Using On-body Continuous Wave Radar and Photoplethysmogram in Various Posture and Exercise Conditions. [PDF]

open access: yesSci Rep, 2019
The pulse arrival time (PAT), pre-ejection period (PEP) and pulse transit time (PTT) are calculated using on-body continuous wave radar (CWR), Photoplethysmogram (PPG) and Electrocardiogram (ECG) sensors for wearable continuous systolic blood pressure ...
Pour Ebrahim M   +6 more
europepmc   +2 more sources

Self-Identification Respiratory Disorder Based on Continuous Wave Radar Sensor System [PDF]

open access: goldIEEE Access, 2019
Contactless vital signs detection, based on the Doppler radar sensor system, has opened a great opportunity in biomedical applications. The radar sensor system can be used to provide the respiratory information of people without disturbing their comfort.
Nguyen Thi Phuoc Van   +5 more
openalex   +2 more sources

A Clinically Evaluated Interferometric Continuous-Wave Radar System for the Contactless Measurement of Human Vital Parameters. [PDF]

open access: yesSensors (Basel), 2019
Vital parameters are key indicators for the assessment of health. Conventional methods rely on direct contact with the patients’ skin and can hence cause discomfort and reduce autonomy.
Michler F   +10 more
europepmc   +2 more sources

Automotive Frequency Modulated Continuous Wave Radar Interference Reduction Using Per-Vehicle Chirp Sequences. [PDF]

open access: yesSensors (Basel), 2018
Recently, many automobiles adopt radar sensors to support advanced driver assistance system (ADAS) functions. As the number of vehicles with radar systems increases the probability of radar signal interference and the accompanying ghost target problems ...
Son YS, Sung HK, Heo SW.
europepmc   +2 more sources

Ocean Wave Measurement Using Short-Range K-Band Narrow Beam Continuous Wave Radar

open access: yesRemote Sensing, 2018
We describe a technique to measure ocean wave period, height and direction. The technique is based on the characteristics of transmission and backscattering of short-range K-band narrow beam continuous wave radar at the sea surface.
Jian Cui   +3 more
doaj   +2 more sources

Pedestrian Pose Recognition Based on Frequency-Modulated Continuous-Wave Radar with Meta-Learning [PDF]

open access: yesSensors
With the continuous advancement of autonomous driving and monitoring technologies, there is increasing attention on non-intrusive target monitoring and recognition.
Jiajia Shi   +4 more
doaj   +2 more sources

Holographic frequency modulated continuous wave laser radar [PDF]

open access: greenThe European Physical Journal Applied Physics, 2007
We present the operating principle and a first experimental characterization of a holographic rangefinder, that couples a two wave mixing phase demodulation set-up with a frequency modulated laser source. In its first implementation, the system allows millimetre sensitivity on tens of meters measurement range with the ability to work with scattering ...
P. Delaye, G. Roosen
openaire   +3 more sources

Systematic Investigation of Heart Sound Propagation Using Continuous Wave Radar

open access: goldIEEE Journal of Biomedical and Health Informatics
Monitoring the propagation of mechanical cardiac signals throughout the body is crucial for assessing cardiovascular health. A common drawback of current gold standard methods for vital sign monitoring is the necessity for continuous skin contact. Radar-based sensing offers a promising alternative by enabling contactless measurement of cardiac activity,
Marie Oesten   +10 more
openaire   +3 more sources

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