Results 41 to 50 of about 1,048,413 (261)

Micro-Doppler separation of multi-target based on ACO in midcourse

open access: yesThe Journal of Engineering, 2019
To solve the problem of mutual superposition and interference of multi-target micro-Doppler in midcourse, a method based on modified ant colony optimisation (ACO) is proposed.
Yizhe Wang   +5 more
doaj   +1 more source

A Doppler aliasing free micro-motion parameter estimation method in the terahertz band

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
Micro-Doppler, induced by micro-motion of targets, is an important characteristic for target recognition once extracted via parameter estimation. However, micro-Doppler is usually too significant to result in aliasing in the terahertz band.
Qi Yang   +3 more
doaj   +1 more source

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

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

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

Synthetic Micro-Doppler Signatures of Non-Stationary Channels for the Design of Human Activity Recognition Systems [PDF]

open access: yes, 2021
The main aim of this dissertation is to generate synthetic micro-Doppler signatures and TV-MDSs to train the HACs. This is achieved by developing non-stationary fixed-tofixed (F2F) indoor channel models.
Abdelgawwad, Ahmed
core   +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

Diagnostic accuracy of Doppler ultrasound technique of the penile arteries in correlation to selective arteriography [PDF]

open access: yes, 1988
In 63% of 265 patients with erectile dysfunction a relevant arterial inflow disturbance was found by Doppler ultrasound examination. Correlation between Doppler and arteriography in 58 patients showed an accuracy of 95% in detecting penile arteries and ...
Stief, Christian Georg   +4 more
core   +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

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