virtual ® 23-Sep-2018 23:40

Virtual Aids to Navigation


Year: 2017
Language: english
Author: WORLD MARITIME UNIVERSITY
Genre: Research papers
Format: PDF
Quality: eBook
Pages count: 207
Description: The Virtual AtoN concept of a charted aid to navigation having no physical presence at
the charted location is relatively new to maritime use. However, this concept is now
becoming more widespread and accepted with the adoption of Automated Identification
System (AIS) radio-based technology that can project a virtual AtoN to a specific
position for display on AIS monitors and AIS-capable Radar and Electronic Chart
Display and Information System (ECDIS) monitors. This is accomplished using a Very
High Frequency (VHF) radio transmitter augmented with AIS capabilities located
within the line of sight of the specific position at which an AIS virtual AtoN is
deployed. A similar approach has been implemented in the aviation community for
many decades beginning in the middle of 20th century in the form of VHF Omni2
directional Radio Ranges (VOR). Virtual navigation fixes are defined by the
intersection of radials from two different VOR stations, and bearings to and from these
stations are also provided facilitating navigation along traffic routes and corridors.
VOR technology in aviation is gradually being replaced with GNSS enabling direct
routing between origins and destinations. Universal adoption of GNSS provides equally
useful utility to mariners for navigation.

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