Results 11 to 20 of about 90,372 (304)

Induction Machine Broken-Bar Fault Diagnosis Using the Rotor Magnetic Field Space-Vector Orientation

open access: yesIEEE Transactions on Industry Applications, 2004
A new technique based on rotor magnetic field space vector orientation is presented to diagnose broken-bar faults in induction machines operating at steady state. In this technique, stator currents and voltages are used as inputs to compute and subsequently observe the rotor magnetic field orientation, which has a more significant "swing-like ...
Behrooz Mirafzal, N A O Demerdash
exaly   +4 more sources

ORIENTATION MODELING FOR AMATEUR CAMERAS BY MATCHING IMAGE LINE FEATURES AND BUILDING VECTOR DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
With the popularity of geospatial applications, database updating is getting important due to the environmental changes over time. Imagery provides a lower cost and efficient way to update the database.
C. H. Hung, W. C. Chang, L. C. Chen
doaj   +2 more sources

On the orientation of the pulsar space velocity vector relative to the spin axis [PDF]

open access: yesNature, 1977
A SIGNIFICANT parameter for pulsars for which proper motion data are available is the angle φ between the space velocity vector and the spin axis. There are eleven such pulsars (ref. 15 and personal communication from one of the authors). The angle between the spin axis projected on the plane of the sky and the proper motion vector has a value close to
R K Kochhar, Kochhar R K
exaly   +2 more sources

Determinig of an object orientation in 3D space using direction cosine matrix and non-stationary Kalman filter

open access: yesArchives of Control Sciences, 2016
This paper describes a method which determines the parameters of an object orientation in 3D space. The rotation angles calculation bases on the signals fusion obtained from the inertial measurement unit (IMU).
Bieda Robert, Jaskot Krzysztof
doaj   +3 more sources

Classification algorithm of parking space images based on a histogram of oriented gradients and support vector machines

open access: yesComputer Optics, 2017
In this paper, a classification algorithm of parking space images is proposed to improve the accuracy of parking space classification, which can be used in smart parking management systems based on video surveillance. The descriptors of a parking space image are formed on the basis of a histogram of oriented gradients by performing the following steps:
P. Yarashevich, R. Bohush
core   +3 more sources

Universal Vector Calibration for Orientation-Invariant 3D Sensor Data

open access: yesSensors
Modern electronic devices such as smartphones, wearable devices, and robots typically integrate three-dimensional sensors to track the device’s movement in the 3D space.
Wonjoon Son, Lynn Choi
doaj   +2 more sources

A High Performance Space Vector Modulation - Direct Torque Controlled Induction Machine Drive based on Stator Flux Orientation Technique

open access: yesAdvances in Electrical and Computer Engineering, 2009
This paper proposes the design and implementation of a novel direct torque controlled induction machine drive system. The control system enjoys the advantages of stator vector control and conventional direct torque control and avoids some of the ...
BELMADANI, B.   +2 more
doaj   +2 more sources

IMAGE ORIENTATION BY EMBEDDING IN A GAN LATENT SPACE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Estimation of an image exterior orientation is required in multiple tasks including 3D reconstruction, autonomous driving and navigation, and single-photo 3D reconstruction. The problem can be easily solved if some reference points (keypoints) with known
V. V. Kniaz   +8 more
doaj   +1 more source

Hierarchies over Vector Space: Orienting Word and Graph Embeddings

open access: yesCoRR, 2022
Word and graph embeddings are widely used in deep learning applications. We present a data structure that captures inherent hierarchical properties from an unordered flat embedding space, particularly a sense of direction between pairs of entities. Inspired by the notion of \textit{distributional generality}, our algorithm constructs an arborescence (a
Xingzhi Guo, Steven Skiena
openaire   +2 more sources

Low-Cost Orientation Determination System for CubeSat Based Solely on Solar and Magnetic Sensors

open access: yesSensors, 2023
CubeSats require accurate determination of their orientation relative to the Sun, Earth, and other celestial bodies to operate successfully and collect scientific data.
Yerkebulan Nurgizat   +4 more
doaj   +1 more source

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