Results 81 to 90 of about 1,285,259 (263)

Computational Guidance & Navigation for Bearings-Only Rendezvous – methods and outcomes of GUIBEAR

, 2021
GUIBEAR is an on-going activity supported by the European Space Agency aimed at the demonstration of the feasibility of bearings-only (B-O) far-range rendezvous in near rectilinear Halo orbits (NROs). The studied scenario is the far-range rendezvous of the HERACLES Lunar Ascent Element (LAE) with the Lunar Orbital Platform – Gateway (LOP-G) that is ...
Serra, Pedro, Lourenço, Pedro, Branco, João, Briz Valero, José, Mammarella, Marco, Peters, Thomas Vincent, Portela, Dario Mora, Manara, Silvia, Bernardini, Daniele, Bemporad, Alberto, Manzillo, Pierluigi Foglia, Witteveen, Jouke, Cropp, Alexander   +12 more
openaire   +2 more sources

UAV-LiCAM SYSTEM DEVELOPMENT: CALIBRATION AND GEO-REFERENCING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
In the last decade, applications of unmanned aerial vehicles (UAVs), as remote-sensing platforms, have extensively been investigated for fine-scale mapping, modeling and monitoring of the environment. In few recent years, integration of 3D laser scanners
C. Cortes, M. Shahbazi, P. Ménard
doaj   +1 more source

Autonomous navigation system [PDF]

, 1981
An inertial navigation system utilizing a servo-controlled two degree of freedom pendulum to obtain specific force components in the locally level coordinate system is described.
Merhav, S. J.
core   +1 more source

Using Sound to Enhance Users’ Experiences of Mobile Applications [PDF]

, 2012
The latest smartphones with GPS, electronic compass, directional audio, touch screens etc. hold potentials for location based services that are easier to use compared to traditional tools.
Liljedahl, Mats, Papworth, Nigel
core   +4 more sources

Where do we go from here? An assessment of navigation performance using a compass versus a GPS unit [PDF]

, 2007
The Global Positioning System (GPS) looks set to replace the traditional map and compass for navigation tasks in military and civil domains. However, we may ask whether GPS has a real performance advantage over traditional methods.
AP Leggatt, Daniel P. Jenkins, EJ Arthur, Guy H. Walker, JF Antin, JL Chen, KW Williams, L Bainbridge, Mark S. Young, Neville A. Stanton, P Foo, Wes Smart   +11 more
core   +1 more source

Experimental Research on the Vibration of Ship Propulsion Shaft under Hull Deformation Excitations on Bearings

Shock and Vibration, 2019
With the development of ship enlargement, the problems of coupling vibration between hull and propulsion system and vibration transmission via bearings are more and more prominent.
Cong Zhang, Dongchen Xie, Qianwen Huang, Zhihua Wang   +3 more
doaj   +1 more source

No differences in knee kinematics between active and passive flexion-extension movement: an intra-operative kinematic analysis performed during total knee arthroplasty

Journal of Experimental Orthopaedics, 2020
Purpose The objective of the present study was to acquire and compare by the use of a navigation system the intra-operative flexion-extension movement of the knee performed actively by the patient and passively by the surgeon before and after a total ...
Alberto Grassi, Nicola Pizza, Nicola Francesco Lopomo, Maurilio Marcacci, Michele Capozzi, Giulio Maria Marcheggiani Muccioli, Francesca Colle, Stefano Zaffagnini   +7 more
doaj   +1 more source

Multichannel Wiener filter in active sound‐navigation‐and‐ranging systems—A joint beamformer and matched filter approach

IET Radar, Sonar & Navigation
Conventional active SONAR systems often use beamformers and matched filters separately to extract bearing and range information from the received signal and offer a straightforward way of creating a two‐dimensional map of the environment.
Bastian Kaulen, Jan Abshagen, Gerhard Schmidt   +2 more
semanticscholar   +1 more source

Summary of paper: Area navigation implementation for a microcomputer-based Loran-C receiver [PDF]

The development of an area navigation program and the implementation of this software on a microcomputer-based Loran-C receiver to provide high-quality, practical area navigation information for general aviation are described.
Oguri, Fujiko
core   +1 more source

Inverse Optimal Planning for Air Traffic Control

, 2019
We envision a system that concisely describes the rules of air traffic control, assists human operators and supports dense autonomous air traffic around commercial airports.
Kapoor, Ashish, Kumar, Vijay, Ribeiro, Alejandro, Tolstaya, Ekaterina   +3 more
core   +1 more source