Results 31 to 40 of about 9,652,403 (175)

Incorporation of Digital Modulation into Vital Sign Detection and Gesture Recognition Using Multimode Radar Systems

open access: yesSensors, 2023
The incorporation of digital modulation into radar systems poses various challenges in the field of radar design, but it also offers a potential solution to the shrinking availability of low-noise operating environments as the number of radar ...
Michael C. Brown, Changzhi Li
doaj   +1 more source

Simultaneous User Localization and Identification Using Leaky-Wave Antennas and Backscattering Communications

open access: yesIEEE Access, 2022
High-speed detection and identification of mobile terminals located in the vicinity of highly directive base stations is essential for future mm-wave communication systems.
Kyriakos Neophytou   +5 more
doaj   +1 more source

Techniques for homodyne dechirp-on-receive linearly frequency modulated radar [PDF]

open access: yes, 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

Radar matched filtering using the fractional fourier transform [PDF]

open access: yes, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine   +5 more
core   +2 more sources

Multistatic human micro-Doppler classification of armed/unarmed personnel [PDF]

open access: yes, 2015
Classification of different human activities using multistatic micro-Doppler data and features is considered in this paper, focusing on the distinction between unarmed and potentially armed personnel.
Griffiths, Hugh   +8 more
core   +1 more source

SSA-VMD for UWB Radar Sensor Vital Sign Extraction

open access: yesSensors, 2023
The combination of advanced radar sensor technology and smart grid has broad prospects. It is meaningful to monitor the respiration and heartbeat of grid employees under resting state through radar sensors to ensure that they are in a healthy working ...
Huimin Yu, Wenjun Huang, Baoqiang Du
doaj   +1 more source

Remote Measurement of Short-Term Heart Rate With Narrow Beam Millimeter Wave Radar

open access: yesIEEE Access, 2021
Heart rate measurement technology based on Doppler radar can monitor heart rate in real time without direct contact with the skin, which possesses the advantages of convenient operation, comfort and insensitivity to the skin state.
Wenjie Lv   +5 more
doaj   +1 more source

A fully integrated fully differential low-noise amplifier for short range automotive radar using a SiGe:C BiCMOS Technology [PDF]

open access: yes2007 European Microwave Integrated Circuit Conference, 2007
A fully integrated fully differential low-noise amplifier for 79 GHz short range radar applications using a highspeed SiGe:C BiCMOS technology is presented. The integrated circuit uses thin-film microstrip lines and exhibits compact design (530 times 690 mum2), low power consumption (90 mW at 3 V supply voltage), high gain (13 dB gain at 81 GHz), good ...
Chartier, Sébastien   +5 more
openaire   +2 more sources

A Cloud Detection Method for Vertically Pointing Millimeter-Wavelength Cloud Radar

open access: yesSensors, 2023
A new method using three dimensions of cloud continuity, including range dimension, Doppler dimension, and time dimension, is proposed to discriminate cloud from noise and detect more weak cloud signals in vertically pointing millimeter-wave cloud radar ...
Hai Lin, Jie Wang, Junxiang Ge
doaj   +1 more source

Doppler-Spread Clutter Suppression in Single-Channel Noise Radar

open access: yes, 2022
S.881-883Continuous emission noise radars suffer from the problem of reduced sensitivity due to masking effects caused by the side-lobes of direct signal leakage, clutter returns and echoes of close targets.
Worms, Josef   +4 more
core   +1 more source

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