Results 21 to 30 of about 1,756,837 (213)

A Trajectory-Driven 3D Channel Model for Human Activity Recognition

open access: yesIEEE Access, 2021
This paper concerns the design, analysis, and simulation of a 3D non-stationary channel model fed with inertial measurement unit (IMU) data. The work in this paper provides a framework for simulating the micro-Doppler signatures of indoor channels for ...
Ahmed Abdelgawwad   +2 more
doaj   +1 more source

Examination of Drone Micro-Doppler and JEM/HERM Signatures [PDF]

open access: yes2020 IEEE Radar Conference (RadarConf20), 2020
Radars monitoring small targets often must increase their integration times to achieve sufficient signal-to-noise ratio (SNR) for maintaining a viable track. These longer integation times can prevent micro-Doppler signature extraction and instead result in Doppler signatures consisting of spectral lines to the radar's higher-level processing.
Markow, John, Balleri, Alessio
openaire   +2 more sources

Obfuscation of Human Micro-Doppler Signatures in Passive Wireless RADAR

open access: yesIEEE Access, 2023
When wireless communication signals impinge on a moving human they are affected by micro-Doppler. A passive receiver of the resulting signals can calculate the spectrogram that produces different signatures depending on the human activity.
Antonios Argyriou
doaj   +1 more source

Applications and Prospect of Micro-motion Theory in the Detection of Sea Surface Target

open access: yesLeida xuebao, 2013
Micro-Doppler is one of the target physical characteristics. The radar signature of target with micro-motion can make fine characterization of the shape, structure and moving state of target, which reflects the nonstationary property of radar signal ...
Chen Xiao-long, Guan Jian, He You
doaj   +1 more source

Coupled micro-Doppler signatures of closely located targets [PDF]

open access: yesPhysical Review B, 2019
The classical Doppler shift originates from the movement of a target's center of mass, but it does not hold information about the internal dynamics of the scattering object. In contrast, micro-Doppler signatures contain data about the micro-motions that arise from internal degrees of freedom within the target (such as rotation and vibration), which can
Kozlov, Vitali   +4 more
openaire   +2 more sources

Pedestrian and Animal Recognition Using Doppler Radar Signature and Deep Learning

open access: yesSensors, 2022
Pedestrian occurrences in images and videos must be accurately recognized in a number of applications that may improve the quality of human life. Radar can be used to identify pedestrians.
Danny Buchman   +4 more
doaj   +1 more source

Extraction of Human Limbs Based on Micro-Doppler-Range Trajectories Using Wideband Interferometric Radar

open access: yesSensors, 2023
In this paper, we propose to extract the motions of different human limbs by using interferometric radar based on the micro-Doppler-Range signature (mDRS).
Xianxian He, Yunhua Zhang, Xiao Dong
doaj   +1 more source

Three-dimensional reconstruction of space rotating target based on narrow-band radar networks

open access: yesThe Journal of Engineering, 2019
The micro-motion of space target is an important signature for classification and recognition, which has received great attention. Based on the micro-Doppler signals from narrow-band radar networks, this study proposes a three-dimensional reconstruction ...
Chao Wang, Shu L. Wen, Chun M. Ye
doaj   +1 more source

Analysis of Non-Intrusive Hand Trajectory Tracking by Utilizing Micro-Doppler Signature Obtained From Wi-Fi Channel State Information

open access: yesIEEE Access, 2020
Envision a ubiquitously device-free motion sensing, this work focuses on the analysis of Wi-Fi-based hand gesture trajectory tracking by utilizing the Doppler frequency obtained from channel state information (CSI).
Nopphon Keerativoranan   +3 more
doaj   +1 more source

Analysis of micro-Doppler signatures

open access: yesIEE Proceedings - Radar, Sonar and Navigation, 2003
Mechanical vibration or rotation of a target or structures on the target may induce additional frequency modulations on the returned radar signal which generate sidebands about the target's Doppler frequency, called the micro-Doppler effect. Micro-Doppler signatures enable some properties of the target to be determined.
V.C. Chen, F. Li, S.-S. Ho, H. Wechsler
openaire   +1 more source

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