Results 31 to 40 of about 4,885,884 (343)

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

IEEE 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, Sentang Wu, Yongming Wen, Xiaolong Wu   +3 more
doaj   +1 more source

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

The 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

Relative Navigation in UAV Applications

International 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

Radial basis function neural network aided adaptive extended Kalman filter for spacecraft relative navigation

Aerospace Science and Technology, 2020
This paper presents a novel technique, combining neural network and Kalman filter, for state estimation. The proposed solution provides the estimates of the system states while also estimating the uncertain or unmodeled terms of the process dynamics. The
V. Pesce, S. Silvestrini, M. Lavagna
semanticscholar   +1 more source

Relative navigation approach for vision-based aerial GPS-denied navigation

2013 International Conference on Unmanned Aircraft Systems (ICUAS), 2013
GPS-denied aerial flight is a popular research topic. The problem is challenging and requires knowledge of complex elements from many distinct disciplines. Additionally, aerial vehicles can present challenging constraints such as stringent payload limitations and fast vehicle dynamics. In this paper we propose a new architecture to simplify some of the
Robert C. Leishman, Timothy W. McLain, Randal W. Beard   +2 more
openaire   +2 more sources

Challenges for identifying the neural mechanisms that support spatial navigation: the impact of spatial scale. [PDF]

, 2014
Spatial navigation is a fascinating behavior that is essential for our everyday lives. It involves nearly all sensory systems, it requires numerous parallel computations, and it engages multiple memory systems.
Aginsky, Banta Lavenex, Barrash, Brandon, Burgess, Burgess, Burwell, Bush, Byrne, Cartwright, Cheng, Cheng, Cheung, Colby, Colgin, Committeri, Cushman, Derdikman, Derdikman, Doeller, Eichenbaum, Eldridge, Frank, Franz, Gheysen, Goodrich-Hunsaker, Hafting, Han, Hartley, Hölscher, Iaria, Iglói, Jacobs, Jahn, Jan M. Wiener, Janzen, Janzen, Killian, Kuipers, Kumaran, Lever, McDonald, Meilinger, Meilinger, Montello, Morris, O’Keefe, Packard, Pearce, Pengas, Poucet, Rondi-Reig, Salmon, Sato, Schendan, Schinazi, Schindler, Schölkopf, Shelton, Skaggs, Solstad, Spiers, Spiers, Steffenach, Stevens, Thomas Wolbers, Tolman, Trullier, Waller, Wang, Wang, Whitlock, Whitwell, Wiener, Wiener, Wiener, Wilton, Wolbers, Wolbers, Wolbers, Wood, Worden   +81 more
core   +2 more sources

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

Hangkong 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

Electron density retrieval from truncated Radio Occultation GNSS data [PDF]

, 2019
This paper summarizes the definition and validation of two complementary new strategies, to invert incomplete Global Navigation Satellite System Radio-Occultation (RO) ionospheric measurements, such as the ones to be provided by the future EUMETSAT Polar
Cardellach Galí, Estel, Hernández Pajares, Manuel, Lyu, Haixia, Monte Moreno, Enrique   +3 more
core   +2 more sources

High-speed multi-dimensional relative navigation for uncooperative space objects [PDF]

, 2019
This work proposes a high-speed Light Detection and Ranging (LIDAR) based navigation architecture that is appropriate for uncooperative relative space navigation applications.
Aouf, N., Kechagias-Stamatis, O., Richardson, M. A.   +2 more
core   +2 more sources

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

Aerospace, 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, Takuji Ebinuma, Shinichi Nakasuka, Heidar Malki   +3 more
doaj   +1 more source