Results 1 to 10 of about 1,809,715 (303)

Micro Motion Amplification–A Review [PDF]

open access: yesIEEE Access, 2020
Many motion-active materials have recently emerged, with new methods of integration into actuator components and systems-on-chip. Along with established microprocessors, interconnectivity capabilities and emerging powering methods, they offer a unique ...
Michail E. Kiziroglou   +3 more
doaj   +6 more sources

Adaptive Complex Variational Mode Decomposition for Micro-Motion Signal Processing Applications [PDF]

open access: yesSensors, 2021
In order to suppress the strong clutter component and separate the effective fretting component from narrow-band radar echo, a method based on complex variational mode decomposition (CVMD) is proposed in this paper.
Saiqiang Xia   +5 more
doaj   +2 more sources

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

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   +2 more sources

Micro Motion Amplifiers for Compact Out-of-Plane Actuation [PDF]

open access: yesMicromachines, 2018
Small-scale, out-of-plane actuators can enable tactile interfaces; however, achieving sufficient actuator force and displacement can require larger actuators. In this work, 2-mm2 out-of-plane microactuators were created, and were demonstrated to output up to 6.3 µm of displacement and 16 mN of blocking force at 170 V.
Xie, Xin   +4 more
openaire   +6 more sources

Thermally induced micro-motion by inflection in optical potential [PDF]

open access: yesScientific Reports, 2017
ABSTRACTRecent technological progress in a precise control of optically trapped objects allows much broader ventures to unexplored territory of thermal motion in non-linear potentials. In this work, we exploit an experimental set-up of holographic optical tweezers to experimentally investigate Brownian motion of a micro-particle near the inflection ...
Martin Šiler   +5 more
openaire   +4 more sources

Decoupling and Parameter Extraction Methods for Conical Micro-Motion Object Based on FMCW Lidar [PDF]

open access: yesSensors
Micro-Doppler time–frequency analysis has been regarded as an important parameter extraction method for conical micro-motion objects. However, the micro-Doppler effect caused by micro-motion can modulate the frequency of lidar echo, leading to coupling ...
Zhen Yang   +7 more
doaj   +2 more sources

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   +3 more sources

2-D Joint Sparse Reconstruction and Micro-Motion Parameter Estimation for Ballistic Target Based on Compressive Sensing [PDF]

open access: yesSensors, 2020
The sparse frequency band (SFB) signal presents a serious challenge to traditional wideband micro-motion curve extraction algorithms. This paper proposes a novel two-dimension (2-D) joint sparse reconstruction and micro-motion parameter estimation (2D ...
Jiaqi Wei   +3 more
doaj   +2 more sources

ISAR Dataset for the Recognition of Conical Targets with Micro-Motion [PDF]

open access: yesScientific Data
In recent years, the recognition of ballistic micro-motion targets based on deep learning has been extensively studied. However, currently, there are no publicly available datasets; all datasets come from simulations conducted by researchers themselves.
Zhichen Zhao   +3 more
openaire   +4 more sources

Envelope Correction of Micro-Motion Targets in the Terahertz ISAR Imaging [PDF]

open access: yesSensors, 2018
Motion compensation is a crucial step to inverse synthetic aperture radar imaging, and envelope correction is the foundation of motion compensation. Research on envelope correction based on the small-angle imaging model has matured after years of development.
Qi Yang 0002   +4 more
openaire   +4 more sources

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