Results 11 to 20 of about 4,401 (203)
Aerospace, 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
Axioms, 2021 The strapdown inertial navigation system can provide the navigation information for the boom-type roadheader in the unmanned roadway tunneling working face of the coal mine.
Yang Shen +5 more
doaj +1 more source
Optimal fusion‐based localization method for tracking of smartphone user in tall complex buildings
CAAI 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
International 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
IET 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
Research on precise positioning of shield roadheader robot system in coal mine
Gong-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
Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
Reviews 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
Geophysical 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
Atom Strapdown: Toward Integrated Quantum Inertial Navigation Systems
NAVIGATION: Journal of the Institute of Navigation, 2023 We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a newly introduced sensor frame, enabling hybridization of both systems in terms of acceleration and ...
Benjamin Tennstedt +5 more
openaire +2 more sources
Airborne Absolute Gravimetry With a Quantum Sensor, Comparison With Classical Technologies
Journal of Geophysical Research: Solid Earth, Volume 128, Issue 4, April 2023., 2023 Abstract We report an airborne gravity survey with an absolute gravimeter based on atom interferometry and two relative gravimeters: a classical LaCoste&Romberg (L&R) and a novel iMAR strapdown Inertial Measurement Unit. We estimated measurement errors for the quantum gravimeter ranging from 0.6 to 1.3 mGal depending on the flight conditions and the ...
Y. Bidel +17 more
wiley +1 more source