Results 21 to 30 of about 90,372 (304)

Method of preliminary solution of the problem of space robot navigation by onboard astronomical measurements using the butterworth filter

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2020
A method of preliminary solution of the problem of space robot navigation based on the results of measurements carried out using its onboard optronic equipment is presented.
V. M. Ananenko   +2 more
doaj   +1 more source

Design and Implementation of a 3-Dimensional Attitudes Estimator Device using Low Cost Accelerometer & Gyroscope with Microcontroller IDE [PDF]

open access: yesINCAS Bulletin, 2020
Navigation and guidance systems for most automobile as well as aerospace applications require a coupled chip setup known as Inertial Measurement Units (IMU) which, depending on the degree of freedoms, contains a Gyroscope (for maintaining orientation and
M. RAJA, Ugur GUVEN, Kartikay SINGH
doaj   +1 more source

Field-Oriented Control of Five-Phase Induction Motor Fed From Space Vector Modulated Matrix Converter [PDF]

open access: yesIEEE Access, 2022
This paper presents the field-oriented control (FOC) of a five-phase induction motor (FPIM) fed from a three-to-five phase direct matrix converter (DMC). The article focuses on the modulation and control of the three-to-five phase DMC, which discusses minimizing the problems associated with switching vector selection, sector identification, switching ...
Khaliqur Rahman   +6 more
openaire   +4 more sources

Orientation of a real vector space [PDF]

open access: yes, 2023
In this thesis, we focus on creating a visual understanding of orientation of a real vector space and its subsequent connection to the mathematical definiton.
Macek, Lukáš
core   +1 more source

An Algorithm for Calculating Apple Picking Direction Based on 3D Vision

open access: yesAgriculture, 2022
Research into autonomous (robotic) apple picking has not yet resolved the problem of finding the optimal picking orientation. Robotic picking efficiency, in terms of picking all available apples without loss or damage, remains low.
Ruilong Gao   +3 more
doaj   +1 more source

ILoA: Indoor Localization Using Augmented Vector of Geomagnetic Field

open access: yesIEEE Access, 2020
In this article, we propose a new geomagnetic localization scheme, named ILoA, to address error accumulation and global localization. Global localization is a fundamental problem that determines the initial pose under global uncertainty.
Sangjae Lee, Seungwoo Chae, Dongsoo Han
doaj   +1 more source

Multi-resolution texture classification based on local image orientation [PDF]

open access: yes, 2008
The aim of this paper is to evaluate quantitatively the discriminative power of the image orientation in the texture classification process. In this regard, we have evaluated the performance of two texture classification schemes where the image ...
Ovidiu Ghita   +5 more
core   +1 more source

Orientation Analysis for Chinese News Based on Word Embedding and Syntax Rules

open access: yesIEEE Access, 2019
In this era of Internet and big data, there is billions of news generated every day, and the traditional manual methods are insufficient for public opinion orientation analysis.
Pengwei Wang   +4 more
doaj   +1 more source

A fault monitoring method for wind power generation system based on sliding mode observer

open access: yesArchives of Electrical Engineering, 2020
In this paper, a rotor current fault monitoring method is proposed based on a sliding mode observer. Firstly, the state-space model of the Double-Fed Induction Generator (DFIG) is constructed by vector transformation.
Wenxin Yu, Shao Dao Huang, Dan Jiang
doaj   +1 more source

Algebra of Complex Vectors and Applications in Electromagnetic Theory and Quantum Mechanics

open access: yesMathematics, 2015
A complex vector is a sum of a vector and a bivector and forms a natural extension of a vector. The complex vectors have certain special geometric properties and considered as algebraic entities. These represent rotations along with specified orientation
Kundeti Muralidhar
doaj   +1 more source

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