Results 31 to 40 of about 714,984 (285)

A Survey on Vision Navigation Methods for UAV Navigation Applications [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2017
Inertial navigation system error increases due to sensor errors with the increase intime. Usually, to prevent the growth of navigation system error, inertial navigationsystems are integrated with sensors or auxiliary systems. The importantly aided system
Masoud Ebrahimi Kachoie   +2 more
doaj  

Speed sensorless vector control of parallel-connected three-phase two-motor single-inverter drive system

open access: yesFACETS, 2016
This paper presents the characteristic behavior of direct vector control of two induction motors with sensorless speed feedback having the same rating parameters, paralleled combination, and supplied from a single current-controlled pulse-width-modulated
R. Gunabalan   +5 more
doaj   +1 more source

Recursive trimmed filter in eliminating high density impulse noise from digital image

open access: yesDesimal, 2023
Advances in technology have made it easier to share media over the Internet. In the process of media sharing, a media may receive noise or interference that results in loss of information.
Ilyasa Pahlevi Reza Yulianto   +2 more
doaj   +1 more source

Green roof in module of climate chamber

open access: yesSelected Scientific Papers: Journal of Civil Engineering, 2019
The submitted article is devoted to the research of the green roofs located at Faculty of civil engineering of Technical University of Kosice.
Baláž Richard   +2 more
doaj   +1 more source

Position and Speed Control of Brushless DC Motors Using Sensorless Techniques and Application Trends

open access: yesSensors, 2010
This paper provides a technical review of position and speed sensorless methods for controlling Brushless Direct Current (BLDC) motor drives, including the background analysis using sensors, limitations and advances.
Jaime Gómez-Gil   +2 more
doaj   +1 more source

BUMVU Estimators

open access: yesSSRN Electronic Journal, 2023
We provide necessary and sufficient conditions for an (Unbiased) Block estimator to have Uniformly Minimum Variance. Our theory parallels the theory of UMVU estimation, the main novel insight being the focus on the covariance among blocks. We use this theory to derive lower variance bounds for block estimators of functionals of high-frequency ...
Kolokolov, Aleksey   +2 more
openaire   +1 more source

Demystifying Fixed k-Nearest Neighbor Information Estimators

open access: yes, 2016
Estimating mutual information from i.i.d. samples drawn from an unknown joint density function is a basic statistical problem of broad interest with multitudinous applications.
Gao, Weihao   +2 more
core   +1 more source

Exploiting Extrinsic Information for Serial MAP Detection by Utilizing Estimator in Holographic Data Storage Systems

open access: yesApplied Sciences
In the big data era, data are created in huge volume. This leads to the development of storage devices. Many technologies are proposed for the next generation of storage fields.
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

SolidPAC is an interactive battery-on-demand energy density estimator for solid-state batteries

open access: yesCell Reports Physical Science, 2022
Summary: Solid-state batteries hold the promise to be highly impactful next-generation technologies for high-energy and -power-density rechargeable battery applications.
Marm Dixit   +6 more
doaj   +1 more source

Stochastic Restricted Biased Estimators in misspecified regression model with incomplete prior information

open access: yes, 2018
In this article, the analysis of misspecification was extended to the recently introduced stochastic restricted biased estimators when multicollinearity exists among the explanatory variables.
Kayanan, Manickavasagar   +1 more
core   +2 more sources

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