Results 21 to 30 of about 174,445 (306)

Range-Extension Algorithms and Strategies for TDOA Ultra-Wideband Positioning System

open access: yes, 2023
The Internet of Things (IoT) for smart industry requires the surveillance and management of people and objects. The ultra-wideband positioning system is an attractive solution for achieving centimeter-level accuracy in target location. While many studies
Shih-Ping Huang   +7 more
core   +1 more source

Identification of Dynamically Positioned Ships [PDF]

open access: yesIFAC Proceedings Volumes, 1995
Todays model-based dynamic positioning (DP) systems require that the ship and thruster dynamics are known with some accuracy in order to use linear quadratic optical control theory. However, it is difficult to identify the mathematical model of a dynamically posititmed (DP) ship since the ship is not persistently excited under DP.
Thor I. Fossen   +2 more
openaire   +3 more sources

The Four Key Challenges of Advanced Multisensor Navigation and Positioning [PDF]

open access: yes, 2014
The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments to meet the needs of a variety of mission-critical applications.
Martin, H   +11 more
core   +1 more source

Chromatin Dynamics and Gene Positioning [PDF]

open access: yesCell, 2008
The mammalian cell nucleus provides a landscape where genes are regulated through their organization and association with freely diffusing proteins and nuclear domains. In many cases, specific genes are highly dynamic, and the principles governing their movements and interchromosomal interactions are currently under intensive study.
Kumaran, R. Ileng   +2 more
openaire   +2 more sources

Positional Preferences and Efficiency in a Dynamic Economy [PDF]

open access: yesSSRN Electronic Journal, 2020
AbstractIn an endogenous growth model, we characterize the conditions under which positional preferences for consumption and wealth do not cause inefficiency and derive an optimal tax policy response in cases where these conditions are not satisfied. The concerns for relative consumption and relative wealth partly emanate from social comparisons with ...
Thomas Aronsson   +2 more
openaire   +6 more sources

Research on the Error of Global Positioning System Based on Time Series Analysis

open access: yes, 2022
Due to the poor dynamic positioning precision of the Global Positioning System (GPS), Time Series Analysis (TSA) and Kalman filter technology are used to construct the positioning error of GPS.
Song, Lijun   +11 more
core   +1 more source

Dynamic positioning of ships based on robust fuzzy observer

open access: yesThe Journal of Engineering, 2020
In this study, the robust fuzzy observer-based control scheme for the dynamic positioning of marine vessels is presented. The proposed controller assumes that the environmental disturbances are unknown but bounded with known upper limit.
Werneld Ngongi   +4 more
doaj   +1 more source

Integrated strategic supply chain positioning for SMEs: an empirical study [PDF]

open access: yes, 2006
Purpose - This paper reports on an investigation into the selection and evaluation of a suitable strategic positioning methodology for SMEs in Singapore.
Lim, Roland Y. G.   +6 more
core   +1 more source

Prediction of Loss of Position during Dynamic Positioning Drilling Operations Using Binary Logistic Regression Modeling

open access: yesJournal of Marine Science and Engineering, 2021
The prediction of loss of position in the offshore industry would allow optimization of dynamic positioning drilling operations, reducing the number and severity of potential accidents.
Zaloa Sanchez-Varela   +3 more
doaj   +1 more source

Advanced Positioning and Location based services in 4G Mobile-IP Radio Access Networks [PDF]

open access: yes, 2004
2004 IEEE 15TH IEEE International Symposium on personal, indoor and mobile radio communications (PIMRC 2004), Barcelona, Spain, 5-8 september 2004.This paper proposes an evolved architecture from 3G networks to provide basic and advanced positioning ...
Soto Campos, Ignacio   +3 more
core   +1 more source

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