Results 21 to 30 of about 101,062 (334)
Scatterer-Level Time-Frequency-Frequency Rate Representation for Micro-Motion Identification
Remote 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
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Compliance Modeling and Kinetostatic Analysis of a Generalized 3-PSS Compliant Parallel Micro-Motion Platform [PDF]
MicromachinesIn 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 +2 more sources
Envelope Correction of Micro-Motion Targets in the Terahertz ISAR Imaging. [PDF]
Sensors (Basel), 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.
Yang Q, Deng B, Wang H, Qin Y, Zhang Y.
europepmc +5 more sources
Summaries of Micro motion Mechanisms
Jixie chuandong, 1999 At present, micro motion mechanisms are usually actuated by elastic deformation, linear motor, mechanical transmission, electrical magnet and intelligent materials.
罗建勤, 曾韬
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Efficient Classification of Birds and Drones Considering Real Observation Scenarios Using FMCW Radar [PDF]
Journal of Electromagnetic Engineering and Science, 2021 In this study, we consider real observation scenarios and propose an efficient method to accurately distinguish drones from birds using features obtained from their micro-Doppler (MD) signatures.
Se-Won Yoon +7 more
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Remote Sensing, 2023 Space target classification based on micro-motion characteristics has become a subject of great interest in the field of radar, particularly when using deep learning techniques. However, in practical applications, the ability of deep learning is hampered
Lixun Han, Cunqian Feng, Xiaowei Hu
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Remote 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
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Feature Extraction of Rotor Blade Targets Based on Phase Compensation in a Passive Bistatic Radar
Leida xuebao, 2021 As a stable and widely covered signal resource, a Global Navigation Satellite System (GNSS) plays an important part in micro-Doppler extraction in a near field. This paper aims at the problems associated with rotor blade target recognition and proposes a
Zibo ZHOU +5 more
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Remote Sensing, 2022 Radar cross section (RCS) sequences, an easy-to-obtain target feature with small data volume, play a significant role in radar target classification. However, radar target classification based on RCS sequences has the shortcomings of limited information ...
Xuguang Xu, Cunqian Feng, Lixun Han
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A micro motion sensing system for micromanipulation tasks [PDF]
Sensors and Actuators A: Physical, 2012 An optical-based motion sensing system has been developed for real-time sensing of instrument motion in micromanipulation. The main components of the system consist of a pair of position sensitive detectors (PSD), lenses, an infrared (IR) diode that illuminates the workspace of the system, a non-reflective intraocular shaft, and a white reflective ball
Tan, U Xuan +5 more
openaire +3 more sources