Results 11 to 20 of about 3,144,647 (278)

Scatterer-Level Time-Frequency-Frequency Rate Representation for Micro-Motion Identification

open access: yesRemote Sensing, 2023
Radar micro-motion signatures help to judge the target’s motion state and threat level, which plays a vital role in space situational awareness. Most of the existing micro-motion feature extraction methods derived from time-frequency (TF) representation ...
Honglei Zhang   +4 more
doaj   +4 more sources

Compliance Modeling and Kinetostatic Analysis of a Generalized 3-PSS Compliant Parallel Micro-Motion Platform [PDF]

open access: yesMicromachines
In order to expand the range of motion performance of the 3-PSS-compliant parallel micro-motion platform, a variable inclination angle of the mechanism’s guide rails was introduced to construct a category of generalized 3-PSS compliant parallel micro ...
Jun Ren, Aojie Lan
doaj   +3 more sources

Classification of Human Motions Using Micro-Doppler Radar in the Environments with Micro-Motion Interference [PDF]

open access: yesSensors, 2019
Human motion classification based on micro-Doppler effect has been widely used in various fields. However, the motion classification performance would be greatly degraded if the wireless environment has non-target micro-motion interference. In this case,
Liu Xinhua   +2 more
exaly   +3 more sources

Micro-Motion Parameter Extraction for Ballistic Missile with Wideband Radar Using Improved Ensemble EMD Method

open access: yesRemote Sensing, 2021
Micro-motion parameters extraction is crucial in recognizing ballistic missiles with a wideband radar. It is known that the phase-derived range (PDR) method can provide a sub-wavelength level accuracy.
Nannan Zhu   +5 more
doaj   +2 more sources

Micro-Motion Classification of Flying Bird and Rotor Drones via Data Augmentation and Modified Multi-Scale CNN

open access: yesRemote Sensing, 2022
Aiming at the difficult problem of the classification between flying bird and rotary-wing drone by radar, a micro-motion feature classification method is proposed in this paper.
Xiaolong Chen   +5 more
doaj   +2 more sources

Human Activity Classification Based on Dual Micro-Motion Signatures Using Interferometric Radar

open access: yesRemote Sensing, 2023
Micro-Doppler signatures obtained from the Doppler radar are generally used for human activity classification. However, if the angle between the direction of motion and radar antenna broadside is greater than 60°, the micro-Doppler signatures generated ...
Shahid Hassan   +5 more
doaj   +2 more sources

Recognition of Ballistic Targets by Fusing Micro-Motion Features with Networks

open access: yesRemote Sensing, 2022
Ballistic target recognition is of great significance for space attack and defense. The micro-motion features, which contain spatial and motion information, can be regarded as the foundation of the recognition of ballistic targets. To take full advantage of the micro-motion information of ballistic targets, this paper proposes a method based on feature
Lei Yang   +2 more
openaire   +3 more sources

Estimating Shape and Micro-Motion Parameter of Rotationally Symmetric Space Objects from the Infrared Signature [PDF]

open access: yesSensors, 2016
Shape serves as an important additional feature for space target classification, which is complementary to those made available. Since different shapes lead to different projection functions, the projection property can be regarded as one kind of shape ...
Yabei Wu   +3 more
doaj   +2 more sources

Micro‐motion parameter extraction of rotating target based on vortex electromagnetic wave radar

open access: yesIET Radar, Sonar & Navigation, 2021
The vortex electromagnetic (EM) wave radar has the potential to obtain more accurate micro‐motion parameters for target recognition. However, with the existing algorithms of micro‐motion parameter extraction it is difficult to obtain the real rotation ...
Hang Yuan   +4 more
doaj   +2 more sources

Envelope Correction of Micro-Motion Targets Based on Multi-Layer Perceptron During THz-ISAR Sensing

open access: yesIEEE Access, 2019
Translational compensation is one of the key problems in parameter estimation of moving targets and radar imaging, and envelope correction is the basis of translation compensation.
Qi Yang   +5 more
doaj   +2 more sources

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