Results 21 to 30 of about 72,664 (262)

Integrated Autonomous Relative Navigation Method Based on Vision and IMU Data Fusion

open access: yesIEEE Access, 2020
An integrated autonomous relative navigation method based on vision and IMU data fusion was proposed in this paper, which can improve the position accuracy effectively and has strong adaptability to environmental changes.
Wenlei Liu   +3 more
doaj   +1 more source

VISUAL-BASED INTEGRATED NAVIGATION SYSTEM APPLIED TO A SIMULATION OF LUNAR MODULE LANDING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
With the development of space technology, more and more lunar researches are performed by different countries. For the lunar landing mission success, the lunar landing module should equip with advanced Positioning and Orientation System (POS) for the ...
C. T. Kuo, Y. T. Tien, K. W. Chiang
doaj   +1 more source

Attitude sensors relative angular misalignment estimation in integrated navigation systems [PDF]

open access: yesMATEC Web of Conferences, 2022
When using modern navigation systems as part of an on-board system, the navigation task can be solved in several ways: using positional, velocity and angular corrections, and systems using measurements of various physical nature—radio, such as short ...
Kuznetsov Ivan   +3 more
doaj   +1 more source

High-Precision Collaborative Relative Navigation Method for Multiple Aircraft Based on Geometric Topology Constraints [PDF]

open access: yesHangkong bingqi
Multiple aircraft formation has strong multi operation capability, high reliability and high overall efficiency, which is an important direction for the future development of aviation field.
Lu Kewen, Wang Xinlong, Wang Bin
doaj   +1 more source

Uncooperative Spacecraft Relative Navigation With LIDAR-Based Unscented Kalman Filter

open access: yesIEEE Access, 2019
Autonomous relative navigation is a critical functionality which needs to be developed to enable safe maneuvers of a servicing spacecraft (chaser) in close-proximity with respect to an uncooperative space target, in the frame of future On-Orbit Servicing
Roberto Opromolla, Alessia Nocerino
doaj   +1 more source

Ship Security Relative Integrated Navigation with Injected Fault Measurement Attack and Unknown Statistical Property Noises

open access: yesJournal of Marine Science and Engineering, 2020
In this work, the ship relative integrated navigation approaches are studied for the navigation scenarios with the measurements disturbed by unknown statistical property noises and with the injected fault measurement attacks.
Yongjing Wang, Yi Wang, Xiaoliang Feng
doaj   +1 more source

A Comparative Analysis of Multi-Epoch Double-Differenced Pseudorange Observation and Other Dual-Satellite Lunar Global Navigation Systems

open access: yesAerospace, 2021
In this study, dual-satellite lunar global navigation systems that consist of a constellation of two navigation satellites providing geo-spatial positioning on the lunar surface were compared.
Toshiki Tanaka   +3 more
doaj   +1 more source

Relative Navigation in UAV Applications

open access: yesInternational Journal of Aviation Science and Technology, 2020
This paper is committed to the relative navigation of Unmanned Aerial Vehicles (UAVs) flying in formation flight. The concept and methods of swarm UAVs technology and architecture have been explained. The relative state estimation models of unmanned aerial vehicles which are based on separate systems as Inertial Navigation Systems (INS)&Global ...
Tuncay Yunus Erkec, Chingiz Hajiyev
openaire   +2 more sources

Model-Based Tracking in a Space-Simulated Environment Using the General Loss Function

open access: yesAerospace
The increasing demand for on-orbit servicing (OOS), such as satellite life extension and space debris removal, has highlighted the need for research into precise relative navigation between space objects.
Seongho Lee   +5 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

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