Results 21 to 30 of about 1,636 (211)

Research on precise positioning of shield roadheader robot system in coal mine

open access: yesGong-kuang zidonghua, 2022
At present, most of the positioning methods of underground tunneling equipment in coal mines adopt single auxiliary measurement methods such as machine vision, odometer and total station to combine with inertial navigation measurement to suppress the ...
MA Hongwei   +3 more
doaj   +1 more source

An Artificial Celestial Observation Navigation System Using Star Sensor [PDF]

open access: yesHangkong bingqi, 2023
To solve the guidance error caused by inaccurately initial position of rapid launch in inertial navigation, a navigation method using a single satellite sensor to observe the near Earth communication satellite is proposed, which can correct the position ...
Gao Yimeng, Min Changwan, Yang Rui
doaj   +1 more source

Tightly Coupled Integrated Navigation Algorithm for Hypersonic Boost-Glide Vehicles in the LCEF Frame

open access: yesAerospace, 2021
According to the trajectory characteristics of hypersonic boost-glide vehicles, a tightly coupled integrated navigation algorithm for hypersonic vehicles based on the launch-centered Earth-fixed (LCEF) frame is proposed.
Kai Chen   +3 more
doaj   +1 more source

A Novel Damping Method for Strapdown Inertial Navigation System [PDF]

open access: yesIEEE Access, 2019
<p> </p> <p>There are periodic oscillation errors in the strapdown inertial navigation system (SINS) when it works in pure inertial navigation mode. It seriously restricts the navigation accuracy of the system. In order to improve the accuracy of the system, the traditional idea of the external horizontal damping in the stabilized ...
Zhi-Liang Deng   +3 more
openaire   +2 more sources

Optimal fusion‐based localization method for tracking of smartphone user in tall complex buildings

open access: yesCAAI Transactions on Intelligence Technology, Volume 8, Issue 4, Page 1104-1123, December 2023., 2023
Abstract In the event of a fire breaking out or in other complicated situations, a mobile computing solution combining the Internet of Things and wearable devices can actually assist tracking solutions for rescuing and evacuating people in multistory structures. Thus, it is crucial to increase the positioning technology's accuracy. The sequential Monte
Harun Jamil, Do‐Hyeun Kim
wiley   +1 more source

Adaptive weighted federated Kalman filtering based on Mahalanobis distance and its application in navigation

open access: yesIET Communications, Volume 17, Issue 17, Page 1962-1973, October 2023., 2023
This paper proposes the adaptive weighted federated Kalman filtering based on Mahalanobis distance (MD‐AWFKF). Firstly, by calculating the Mahalanobis distance between the predicted value and the measured value of the system state, the random fluctuation of the measured value is detected.
Yi Gao   +4 more
wiley   +1 more source

Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics

open access: yesReviews of Geophysics, Volume 61, Issue 3, September 2023., 2023
Abstract Knowledge of Antarctica's sedimentary basins builds our understanding of the coupled evolution of tectonics, ice, ocean, and climate. Sedimentary basins have properties distinct from basement‐dominated regions that impact ice‐sheet dynamics, potentially influencing future ice‐sheet change.
A. R. A. Aitken   +10 more
wiley   +1 more source

State transformation extended Kalman filter–based tightly coupled strapdown inertial navigation system/global navigation satellite system/laser Doppler velocimeter integration for seamless navigation of unmanned ground vehicle in urban areas

open access: yesInternational Journal of Advanced Robotic Systems, 2023
With the rapid development of unmanned ground vehicle industry, how to achieve continuous, reliable, and high-accuracy navigation becomes very important. At present, the integrated navigation with global navigation satellite system and strapdown inertial
Xue-Yu Du   +4 more
doaj   +1 more source

Cook Ice Shelf and Ninnis Glacier Tongue Bathymetry From Inversion of Operation Ice Bridge Airborne Gravity Data

open access: yesGeophysical Research Letters, Volume 50, Issue 11, 16 June 2023., 2023
Abstract The seafloor depths under the Cook Ice Shelf and Ninnis Glacier Tongue have not been directly measured, despite their importance for understanding ocean circulation and ice shelf change. We model the bathymetry underneath the floating ice and surrounding ocean using airborne gravity data.
Renata R. Constantino, Kirsty J. Tinto
wiley   +1 more source

Distributed data fusion algorithms for inertial network systems [PDF]

open access: yes, 2008
New approaches to the development of data fusion algorithms for inertial network systems are described. The aim of this development is to increase the accuracy of estimates of inertial state vectors in all the network nodes, including the navigation ...
Jia, Huamin, Allerton, David J.
core   +1 more source

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