Results 41 to 50 of about 30,133 (218)

Vital Sign Detection during Large-Scale and Fast Body Movements Based on an Adaptive Noise Cancellation Algorithm Using a Single Doppler Radar Sensor

open access: yesSensors, 2020
The non-contact detection of human vital signs (i.e., respiration rate (RR) and heartbeat rate (HR)) using a continuous-wave (CW) Doppler radar sensor has great potential for intensive care monitoring, home healthcare, etc.
Zi-Kai Yang   +3 more
doaj   +1 more source

Neural-Network-Based Target Classification and Range Detection by CW MMW Radar

open access: yesRemote Sensing, 2023
This study presents a reliable classification of walking pedestrians and animals using a radar operating in the millimeter waves (mmW) regime. In addition to the defined targets, additional targets were added in an attempt to fool the radar and to ...
Yair Richter, Nezah Balal, Yosef Pinhasi
doaj   +1 more source

FM/CW system measures aircraft attitude [PDF]

open access: yes, 1965
FM/CW radar system measures attitude of an approaching aircraft relative to a ground station.

core   +1 more source

Magnetic and radar sensing for multimodal remote health monitoring [PDF]

open access: yes, 2019
With the increased life expectancy and rise in health conditions related to aging, there is a need for new technologies that can routinely monitor vulnerable people, identify their daily pattern of activities and any anomaly or critical events such as ...
Fioranelli, Francesco   +4 more
core   +1 more source

High‐Performance Recycling Biobased Photopolymers for 3D Printing

open access: yesAdvanced Science, EarlyView.
By using biobased phenols like eugenol, novel biobased photopolymers containing dissociative phenol‐carbamate bonds are designed for 3D printing. Meanwhile, a “mixed‐monomer assisted recycling” strategy is proposed to recycle the materials. The resulting materials not only achieve high‐performance and excellent chemical recyclability simultaneously ...
Hang Zhou   +12 more
wiley   +1 more source

FM/CW radar system [PDF]

open access: yes, 1978
An FM/CW radar system is presented with improved noise discrimination in which the received signal is multiplied by a sample of the transmitted signal, and the product signal is employed to deflect a laser beam as a function of frequency. The position of
Brey, H., Geise, P. E., Jr.
core   +1 more source

Spatially Separated Redox Centers in One‐Dimensional Sp2‐Carbon Covalent Organic Frameworks Enable Synergistic Photocatalytic Palladium Recovery and Bisphenol A Mineralization

open access: yesAdvanced Science, EarlyView.
A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen   +9 more
wiley   +1 more source

Fast heart rate extraction using CW Doppler radar with interpolated discrete Fourier transform algorithm

open access: yesAIP Advances, 2020
Doppler radar-based fast heart rate (HR) extraction has great application potential in stress and emotion recognition, anxiety treatments, etc.
Zi-Kai Yang   +4 more
doaj   +1 more source

Machine Learning-Based Human Recognition Scheme Using a Doppler Radar Sensor for In-Vehicle Applications

open access: yesSensors, 2020
In this paper, we propose a Doppler spectrum-based passenger detection scheme for a CW (Continuous Wave) radar sensor in vehicle applications. First, we design two new features, referred to as an ‘extended degree of scattering points’ and a ‘different ...
Eugin Hyun   +3 more
doaj   +1 more source

Smart Spread Spectrum Modulated Tags for Detection of Vulnerable Road Users with Automotive Radar

open access: yesSensors, 2023
In recent years, there has been a significant increase in the number of collisions between vehicles and vulnerable road users such as pedestrians, cyclists, road workers and more recently scooter riders, especially in urban streets. This work studies the
Antonio Lazaro   +3 more
doaj   +1 more source

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