Results 21 to 30 of about 314 (136)
IEEE Journal of Radio Frequency Identification692704Optimized rehabilitation after joint replacement surgery or other medical procedures affecting the musculoskeletal system requires practical movement analysis systems that enable the continuous and precise gait monitoring of patients in everyday ...
Patrick Kwiatkowski +5 more
openaire +2 more sources
IET Radar, Sonar &Navigation, Volume 17, Issue 8, Page 1196-1212, August 2023., 2023 This work reports concepts for two cooperative active reflector tags (ARTs) for joint ranging and communication in a linear frequency modulated continuous wave secondary radar system along with corresponding theoretical derivations. The two low power, sensor enabled ARTs feature roll invariance and are based on 24 GHz integrated superregenerative ...
Manu Viswambharan Thayyil +3 more
wiley +1 more source
Comparative Analysis of Mathematical Models of Tracking Radio Altimeters
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Tracking radio altimeters of low altitudes are widely used in civil aviation. These devises use periodic frequency modulated continuous wave (FMCW) signals, while altitude measurements are based on processing the beat signal processing. For
A. A. Monakov, A. A. Tarasenkov
doaj +1 more source
Heartbeat information prediction based on transformer model using millimetre‐wave radar
IET Biometrics, Volume 12, Issue 4, Page 235-243, July 2023., 2023 Millimetre‐wave radar has a high ranging accuracy and can acquire the subtle vibration information of the human heart. In this paper, we propose a heartbeat prediction method based on the transformer model using millimetre‐wave radar. Abstract Millimetre‐wave radar offers high ranging accuracy and can capture subtle vibration information of the human ...
Bojun Hu +5 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 16, Issue 3, Page 456-469, March 2022., 2022 Abstract Radar has been shown potentially to be used for non‐contact sensing of biosignals in a more comfortable and easier way than wearable and contact devices. By detecting and extracting body motions linked to physiological activities, accurate estimation of the heart rate is possible.
Wenyu Zhang, Gang Li, Zetao Wang, Hao Wu
wiley +1 more source
A polarization‐insensitive time‐modulated frequency‐selective surface for broad frequency range
IET Microwaves, Antennas &Propagation, Volume 16, Issue 1, Page 37-45, January 2022., 2022 Abstract Usually, Radar signature of an object is reduced using microwave absorber surface. Recently, another approach based on time‐modulated frequency‐selective surfaces has been developed to deceive Radar detection by selectively generating harmonics/sidebands.
Mondeep Saikia +2 more
wiley +1 more source
An Efficient Heart Rate Measurement System Using Medical Radar and LSTM Neural Network
Journal of Electrical and Computer Engineering, Volume 2022, Issue 1, 2022., 2022 This research proposes a noncontact heart rate measurement method using medical radar and artificial intelligence techniques. This technique has a significant role in the design and development of a wireless system that monitors the body’s vital signs.
Thanh Han-Trong +2 more
wiley +1 more source
Contactless and short-range vital signs detection with doppler radar millimetre-wave (76-81 GHz) sensing firmware. [PDF]
Healthc Technol LettDoppler millimetre (mm)‐wave radar‐based contactless and short‐range measurement system for vital signs detection (heart rate and respiration rate) continuous monitoring. Abstract Vital signs such as heart rate (HR) and respiration rate (RR) are essential physiological parameters that are routinely used to monitor human health and bodily functions ...
Chen PY +5 more
europepmc +2 more sources
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 Wireless spectrum is a limited resource, and the rapid increase in demand for wireless communication‐based services is increasing day by day. Hence, maintaining a good quality of service, high data rate, and reliability is the need of the day. Thus, we need to apportion the available spectrum in an efficient manner.
Muhammad Fahad Munir +5 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 15, Issue 12, Page 1607-1621, December 2021., 2021 Abstract This study investigates crosstalk and leakage in the Software Defined Radio implementation of Frequency Modulated Continuous Wave (FMCW) radar systems. Empirical measurements of leakage power were conducted during the implementation of FMCW radar using National Instruments Universal Software Radio Peripheral (USRP) boards.
Faran Awais Butt +4 more
wiley +1 more source