Results 21 to 30 of about 146,973 (259)

Application of S-Transform Random Consistency in Inverse Synthetic Aperture Imaging Laser Radar Imaging

open access: yesApplied Sciences, 2019
Under the same principle, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length, as the characteristic of multi-resolution, S transform could reduce the influence of the micro-Doppler component and enhance the ...
Bo Zang   +4 more
doaj   +1 more source

Micro-Doppler Clutter Removal Method Based on the Cancelation of Sliding STFT Spectrogram

open access: yesLeida xuebao, 2022
Micro-motion clutter typically exhibits significant Doppler broadening, raises the noise floor, and annihilates weak targets, resulting in false alarms and missed detections.
Xianrong WAN   +4 more
doaj   +1 more source

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

Measurements and analysis of multistatic and multimodal micro-Doppler signatures for automatic target classification [PDF]

open access: yes, 2014
The purpose of this paper is to present an experimental trial carried out at the Defence Academy of the United Kingdom to measure simultaneous multistatic and multimodal micro-Doppler signatures of various targets, including humans and flying UAVs ...
Marcio Perassoli   +5 more
core   +1 more source

Research on micro-Doppler feature of spatial target

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
The micro-Doppler (m-D) effect which is also called micro-motion effect is a kind of physical phenomenon, which is often produced in ISAR imaging of space targets. When the space target has a micro-Doppler effect, it will produce frequency modulation for
Zhenyuan Ji   +3 more
doaj   +1 more source

Pose Measurement and Motion Estimation of Space On-Orbit CubeSats Based on Micro-Doppler Effect Using Laser Coherent Radar

open access: yesApplied Sciences, 2022
The pose measurement and motion estimation of long-distance space CubeSats is a difficult problem for autonomous rendezvous and track maintenance. In this work, an approach is proposed for the pose estimation of CubeSat based on the micro-Doppler effect ...
Yong Zhang   +5 more
doaj   +1 more source

Dual Illumination Planar Doppler Velocimetry using a Single Camera [PDF]

open access: yes, 2003
A Planar Doppler Velocimetry (PDV) illumination system has been designed which is able to generate two beams, separated in frequency by about 600 MHz. This allows a common-path imaging head to be constructed, using a single imaging camera instead of ...
Nobes, David S.   +3 more
core   +1 more source

Human and bird detection and classification based on Doppler radar spectrograms and vision images using convolutional neural networks

open access: yesInternational Journal of Advanced Robotic Systems, 2021
The study investigated object detection and classification based on both Doppler radar spectrograms and vision images using two deep convolutional neural networks.
Jnana Sai Abhishek Varma Gokaraju   +3 more
doaj   +1 more source

Vehicle wheel detection using micro doppler effect

open access: yesJournal of Physics: Conference Series, 2020
Abstract With the advent of autonomous driving, safety have become the top priority. To adhere vehicle safety standard for autonomous vehicle, the sensors play the primary role in sensing the environment. With high frequency resolution radar, micro motions of the vehicle wheel can be detected.
S Pradeepth, K P Peeyush
openaire   +1 more source

Doppler effect and micro‐Doppler effect of vortex‐electromagnetic‐wave‐based radar [PDF]

open access: yesIET Radar, Sonar & Navigation, 2020
The vortex electromagnetic (EM) wave carrying orbital angular momentum (OAM) has attracted much attention in radar applications. Aimed at the moving target detection application of vortex EM waves, the Doppler effect and the micro‐Doppler (m‐D) effect, both including the linear Doppler shift and the angular Doppler shift, are investigated.
Ying Luo   +4 more
openaire   +1 more source

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