Results 11 to 20 of about 1,809,715 (303)

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

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   +2 more sources

Summaries of Micro motion Mechanisms

open access: yesJixie 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
doaj   +1 more source

Efficient Classification of Birds and Drones Considering Real Observation Scenarios Using FMCW Radar [PDF]

open access: yesJournal 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
doaj   +1 more source

Space Targets with Micro-Motion Classification Using Complex-Valued GAN and Kinematically Sifted Methods

open access: yesRemote 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
doaj   +1 more source

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   +1 more source

Feature Extraction of Rotor Blade Targets Based on Phase Compensation in a Passive Bistatic Radar

open access: yesLeida 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
doaj   +1 more source

Classification of Radar Targets with Micro-Motion Based on RCS Sequences Encoding and Convolutional Neural Network

open access: yesRemote 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
doaj   +1 more source

A micro motion sensing system for micromanipulation tasks [PDF]

open access: yesSensors 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

A Multi-Rotor Drone Micro-Motion Parameter Estimation Method Based on CVMD and SVD

open access: yesRemote Sensing, 2022
It is of great significance to detect drones in airspace due to the substantial increase and regrettable misuse in the consumer market. In this paper, we establish a micro-motion theoretical model of a drone and analyze the micro-Doppler signature of ...
Degui Yang   +4 more
doaj   +1 more source

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