Results 41 to 50 of about 14,673 (249)

Dynamic Fluid Ingress Detection in Geomaterials Using K-Band Frequency Modulated Continuous Wave Radar

open access: yesIEEE Access, 2020
Frequency modulated continuous wave (FMCW) radar in the K-band has been shown to be an effective detector of geomaterial physical properties being highly sensitive to rock characteristics, particularly mineral composition and, for porous rock, variations
Jamie Blanche   +6 more
doaj   +1 more source

Autonomous FMCW Radar Survey of Antarctic Shear Zone [PDF]

open access: yes, 2010
Radar survey of the Antarctic shear zone was conducted using an ultra-wideband (2-10 GHz) frequency modulated continuous wave (FMCW) radar. The radar was mounted on a sled and pulled by a robot that was specifically designed to operate in a harsh polar ...
Arcone, Steven A.   +4 more
core   +2 more sources

Unsupervised Detection of Multiple Sleep Stages Using a Single FMCW Radar

open access: yesApplied Sciences, 2023
The paper proposes a unsupervised method for detecting the three stages of sleep—wake, rapid eye movement (REM) sleep, and non-REM sleep—using biosignals obtained from a 61 GHz single frequency modulated continuous wave (FMCW) radar.
Young-Keun Yoo   +2 more
doaj   +1 more source

Structural Antennas for 3cm Radar Onboard Multi-Rotor UAV [PDF]

open access: yes, 2017
A series of 3cm amateur band radar antennas suitable for installation on a cinematic grade multi-rotor UAV were considered. A wideband open waveguide mouth antenna was developed that can be made from the existing arms of a multi-rotor UAV without any ...
Gray, D., Le Kernec, J.
core   +1 more source

People tracking by cooperative fusion of RADAR and camera sensors [PDF]

open access: yes, 2019
Accurate 3D tracking of objects from monocular camera poses challenges due to the loss of depth during projection. Although ranging by RADAR has proven effective in highway environments, people tracking remains beyond the capability of single sensor ...
Dimitrievski, Martin   +3 more
core   +2 more sources

Bistatic High Frequency Radar Ocean Surface Cross Section for an FMCW Source with an Antenna on a Floating Platform

open access: yesInternational Journal of Antennas and Propagation, 2016
The first- and second-order bistatic high frequency radar cross sections of the ocean surface with an antenna on a floating platform are derived for a frequency-modulated continuous wave (FMCW) source.
Yue Ma, Weimin Huang, Eric W. Gill
doaj   +1 more source

Observations of snowpack properties to evaluate ground-based microwave remote sensing [PDF]

open access: yes, 2013
Active microwave radar has been shown to have great potential for estimating snow water equivalent (SWE) globally from space. To help evaluate optimal active microwave sensor configurations to observe SWE, we evaluated ground-based Frequency Modulated ...
Emad Tajkhorshid (243146)   +5 more
core   +2 more sources

Design of Modular FMCW Radar and Quantization of Its Range Error

open access: yesSakarya University Journal of Computer and Information Sciences, 2018
This study presents experimental analysis of range error of modular FMCW (frequency modulated continuous wave) radar operating at C-band. As FMCW utilizes frequency modulation, it can measure both range and speed of targets.
Emre Uzundurukan   +2 more
doaj   +1 more source

A MIMO FMCW radar approach to HFSWR [PDF]

open access: yesAdvances in Radio Science, 2011
In this paper we propose one possible approach how to apply the concept of multiple-input multiple-output (MIMO) to monostatic Frequency Modulated Continuous Wave (FMCW) High-Frequency Surface Wave Radar (HFSWR) in a maritime environment.
J. O. Hinz, U. Zölzer
doaj   +1 more source

Improved Heartbeat Detection by Exploiting Temporal Phase Coherency in FMCW Radar

open access: yesIEEE Access, 2021
We propose a novel range-bin selection method, temporal phase coherency (TPC), to improve the accuracy of heartbeat extraction by using the frequency-modulated continuous wave (FMCW) radar.
Ho-Ik Choi   +3 more
doaj   +1 more source

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