Results 281 to 290 of about 4,885,884 (343)
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Journal of Navigation, 1974
Liverpool has long been a major seaport and the present centre of nautical education at the Department of Maritime Studies of Liverpool Polytechnic has developed from the Liverpool Nautical College over several decades. Most of the students have a background of experience in merchant shipping and the port industry.
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Liverpool has long been a major seaport and the present centre of nautical education at the Department of Maritime Studies of Liverpool Polytechnic has developed from the Liverpool Nautical College over several decades. Most of the students have a background of experience in merchant shipping and the port industry.
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Relative Navigation Technology
2018Relative navigation of spacecraft refers to determine the relative position and relative velocity between the two spacecraft (Yang et al. in Aerosp Shanghai (02):45–54 [1], Yang et al. in Aerosp Shanghai 27(2):38–45 [2], Shi et al. in Aerosp Control 28(6):43–48 [3]) by using spaceborne measuring equipment and combining with the relative motion equation
Fucheng Liu, Shan Lu, Yue Sun
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Relative Navigation of Air Vehicles
Journal of Guidance, Control, and Dynamics, 2008This paper derives the full equations of motion for relative navigation of air vehicles. An extended Kalman filter is used for estimating the relative position and attitude of two air vehicles designated leader and follower. All leader states are assumed known, whereas the relative states are estimated using line-of-sight measurements between the ...
Adam M. Fosbury, John L. Crassidis
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Vision Based Relative Navigation
2012Vision is a key technology for the relative navigation of formation flying satellites especially when they operate in close proximity. Indeed, with a vision system the relative position and attitude (usually referred to in the machine vision literature as “pose”) of co-flying satellites can be extracted in real-time. This information can be used either
ACCARDO, DOMENICO +2 more
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Journal of Navigation, 1972
The following discussion took place at an open session of the Technical Committee held at the Royal Aeronautical Society in London on 19 January 1972 with Mr. H. E. Smith in the Chair.The Chairman: Relative navigation has a wide connotation, but for the purpose of our discussion it may be applied firstly to aircraft management in the positive or ...
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The following discussion took place at an open session of the Technical Committee held at the Royal Aeronautical Society in London on 19 January 1972 with Mr. H. E. Smith in the Chair.The Chairman: Relative navigation has a wide connotation, but for the purpose of our discussion it may be applied firstly to aircraft management in the positive or ...
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Spacecraft navigation and relativity
American Journal of Physics, 1985Special relativity relates measurements in a ‘‘moving’’ frame to measurements in a ‘‘rest’’ frame. Navigation, as it is performed in practice, uses neither pure a ‘‘rest’’ nor pure a ‘‘moving’’ frame, but instead measures distance in the fixed, Earth, frame and time in the moving, ship, frame.
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Multispectral Sensing for Relative Navigation
2019A relative navigation system based on multispectral sensing device, for non-cooperative rendezvous between a chaser and a target, as well as for the descent and landing on an asteroid, is presented. Firstly, the advantages of using a multispectral camera capable of detecting different spectral signatures are discussed.
FIENGO, A. +5 more
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Angles-Only Relative Navigation Activities during AVANTI
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2017This contribution addresses the realization of angles-only relative navigation systems as means to approach noncooperative target objects flying in low Earth orbits. Based on the recent in-flight experience collected during the AVANTI (Autonomous Vision Approach Navigation and Target Identification) demonstration, a critical comparison between ...
Ardaens J. -S., Gaias G.
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Fault Tolerant Relative Navigation Using Inertial and Relative Sensors
AIAA Guidance, Navigation and Control Conference and Exhibit, 2007Many emerging applications of space, ground, marine, and air vehicles require relative automated navigation with respect to other vehicles and objects. Disturbances in the environment may cause faults in relative navigation sensors. For sensors based on cameras or laser range finders, events as common as lighting changes, glint, or obstruction by ...
Gabriel Hoffmann +4 more
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Image-Based Lunar Terrain Relative Navigation Without a Map: Measurements
, 2020Image-based terrain relative navigation is expected to play an important role in the safe operation of upcoming lunar exploration missions.
John A. Christian +4 more
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