In principle, the line could be drawn on a very large sphere, but, in practice, a Mercator chart, or plotting sheet, is used. The navigator then uses a sextant or bubble octant to measure the altitude of the celestial object and records this altitude using Greenwich Civil Time. The ...
Hilaire. The compass rose is used to dial in the required azimuth. The intercept distance is marked by sliding the shuttle to the appropriate distance from the top of the main body based on the latitude scale of the employed nautical chart.doi:US20130160314 A1Peter HakelUS...
As such, e-Navigation incorporates and expands on a number of technologies, including the Automatic Identification System (AIS), Electronic Chart Display and Information System (ECDIS), Integrated Bridge Systems/Integrated Navigation Systems (IBS/INS), Automatic Radar Plotting Aids (ARPA), Long Range...
Soundings on nautical charts provide information about the shape of the ocean bottom between chart depth curves. A single chart may have thousands of soundings posted on it. This article describes a system for automatic cartographic sounding selection. In this system, a new algorithm for automated ...
A single position fix requires only a means of receiving and interpreting navigation data, using a specially prepared table or graph, and employing conventional navigation charts and plotting procedures. No automatic computation is required. It is assumed that a navigator has an 谩 priori estimate ...