Results 31 to 40 of about 20,618 (235)

Realistic Simulation of Drone Micro-Doppler Signatures

open access: yes2021 18th European Radar Conference (EuRAD), 2022
This paper presents a novel approach to simulating micro-Doppler signatures caused by drones. The focus of this work is to produce realistic signatures that represent the variation that is observed in live radar measurements. In order to accomplish this, the kinematics and dynamics of a drone flight are modelled to capture the changing rotor rotation ...
Bennett, Cameron   +2 more
openaire   +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

Micro-Motion Extraction for Marine Targets by Multi-Pulse Delay Conjugate Multiplication and Layered Tracking

open access: yesSensors, 2023
The detection and recognition of marine targets can be improved by utilizing the micro-motion induced by ocean waves. However, distinguishing and tracking overlapping targets is challenging when multiple extended targets overlap in the range dimension of
Tong Mao   +3 more
doaj   +1 more source

A kinect-based human micro-doppler simulator

open access: yesIEEE Aerospace and Electronic Systems Magazine, 2015
[No abstract available]
Erol, Baris   +2 more
openaire   +3 more sources

Radar Measurement of Human Polarimetric Micro-Doppler [PDF]

open access: yesJournal of Electrical and Computer Engineering, 2013
We use polarimetric micro-Doppler for the detection of arm motion, especially for the classification of whether someone has their arms swinging and is thus unloaded. The arm is often bent at the elbow, providing a surface somewhat similar to a dihedral. This is distinct from the more planar surfaces of the body which allows us to isolate the signals of
David Tahmoush, Jerry Silvious
openaire   +2 more sources

An Improved Phase-Derived Range Method Based on High-Order Multi-Frame Track-Before-Detect for Warhead Detection

open access: yesRemote Sensing, 2021
It is crucial for a ballistic missile defense system to discriminate the true warhead from decoys. Although a decoy has a similar shape to the warhead, it is believed that the true warhead can be separated by its micro-Doppler features introduced by the ...
Nannan Zhu   +6 more
doaj   +1 more source

A Matching Pursuit-Based Vehicle Wheel Parameter Extraction Method from Micro-Doppler Radar Signal [PDF]

open access: yesRadioengineering, 2021
Micro-Doppler effects of moving vehicles in a radar system are mainly induced by the rotation of wheels, whose features are closely related to the numbers, positions and radiuses of wheels.
L. Zhang, Y. Chen, S. Liu, B. Zou
doaj  

Micro-Doppler Curves Extraction of Space Target Based on Modified Synchro-Reassigning Transform and Ridge Segment Linking

open access: yesRemote Sensing, 2022
The micro-movement feature is recognized as one of the practical features of space target recognition in academic circles. The separation of the micro-Doppler curve of the scattering center is the key to feature extraction and parameter estimation, which
Degui Yang   +3 more
doaj   +1 more source

Two‐Photon Grayscale Lithography (2GL) of High Mechanical and Optical Quality 3D Silica Glass Microstructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon grayscale lithography (2GL) enables high‐speed and precise 3D printing of thermolyzed silica glass microstructures with optical‐grade surface quality, high quality factors, and mechanical strength utilizing a custom‐made pre‐glass resist based on polyhedral oligomeric silsesquioxane (POSS) modified with a high‐sensitivity Norrish type II ...
Jonathan L. G. Schneider   +4 more
wiley   +1 more source

Features for micro‐Doppler based activity classification

open access: yesIET Radar, Sonar & Navigation, 2015
Safety and security applications benefit from better situational awareness. Radar micro‐Doppler signatures from an observed target carry information about the target's activity, and have potential to improve situational awareness. This article describes, compares, and discusses two methods to classify human activity based on radar micro‐Doppler data ...
Svante Björklund   +2 more
openaire   +3 more sources

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