Results 21 to 30 of about 888,042 (144)
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
Techniques for homodyne dechirp-on-receive linearly frequency modulated radar [PDF]
, 2011 This thesis presents work done to extend and improve the operation of homodyne dechirp-on-receive linearly frequency modulated radars. First, an investigation of the effect of common phase errors on the point response function of the radar is ...
Middleton, Robert
core +2 more sources
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
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
Remote Monitoring of Human Vital Signs Based on 77-GHz mm-Wave FMCW Radar
Sensors, 2020 In recent years, non-contact radar detection technology has been able to achieve long-term and long-range detection for the breathing and heartbeat signals.
Yong Wang +4 more
doaj +1 more source